You made this video 10years ago.i don't know how are you now.god bless you.students like me will pray for you forever.you did a great job.thank you ma'am

i don't need to attend lectures no more, i've got all i need right here, thank u so much, jst keep making more videos, ur the best...

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

@mubashirahsan8524

2 жыл бұрын

@@junaidhussain4781 levers rule for phase fraction. you need to first understand what the structure might look like and then observe under a microscope

@mediwise2474

Жыл бұрын

@@mubashirahsan8524 bro complex phase diagrams gese ternery or quaternery me lever rule kese lagta

You should teach Material science at my college. At least I wouldn't blank out and sleep in the class. You seriously made me understand concepts I was trying to learn through out the semester !

Your videos are really educational and help teach (seemingly) abstract concepts well. I did not understand this work comfortably until I was recommended your videos by a friend. Thank you for helping us learn!

you are the saviour of all materials engineering students, thankyou!

Your voice is super pleasant. I've had a terrible migraine from stressing over this and other exams. thank you.

Fantastic explanation. I watched this for a revision on the topic and came away learning some new things! Thanks v much for all the effort.

I really appreciate these videos which save my solid chemistry and physical chemistry. can't thank you enough😊😊😊

You are a life saver. My Professor's lecture notes are so brief unclear. This was an amazing tutorial. Plus, you have a pretty voice. Keep making videos. Cheers! :)

I'm retired and my main interest right now is metal casting. I'm interested in the possibilities and want to understand what is going on through the melting and solidification process. This has helped me a lot.

Life saver! Well explained and detailed without being dull!

Super helpful. I'm currently studying for a test. Thank you so much for making this!

thank you so so much. you can't even begin to imagine how much this helped me. i love you. you're amazing

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

Thank all people who made those videos, I wish you all the luck.

this video is the best video I have seen about this topic ! Very well explained , with details on each step, not just numerical and plugging in numbers. Thank you so much for the video ! Thumbs upp

BAMF for realskiez... Thank-you so much! I appreciate the time and generosity you gave to make these videos.

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

You know how ridiculous and stupid my instructor is? I think he watches your videos and then comes and explains to us what he has learned Thank you very very much! I appreciate it

These videos helped me a lot. She made everything so easy by taking examples. Now i am really confident to go for my exams. Thanks : )

Very good. Thank you for the video. Though, i would like to add that during extreme low cooling in order to theoretecally achieve thermal equillibrium, below the eutectic temperature and close to the left of the diagram (low B concetration), it is possible to have also a phase β percipitation from α phase, due to the solubility limit decrease with temperature decrease. So in total there will be α (proeutectic) + α + β (eutectic) + β (precipitated)

yt algorithm suggested this video to me after 7y. Your videos saved me at UNI. Professor couldn't teach shi*, so your explanation was the only thing that made me understand. Thank you!

This is an excellent presentation. Keep up the good work.

Thanks for helping me learn! Your videos are absolutely fantastic!

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

This is such a great lecture! Thanks!

You're 100% better than my professor, thank you!

Thank you so much! These videos have been very helpful :)

Thank you so much!! This was way clearer than the way my professor explained this in lecture.

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

I know these videos are super old but they are making this so much easier to understand. I have a quick question: Is the strength always the highest at the eutectic composition or is that only for this specific case where we are combining lead and tin to make solder? - Thanks in advanced if anyone can answer this.

A very good tutorial. Keep posting the videos and happy engineering! - from a student in Nuclear engineering at UOIT

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

First, I would like to thank you Professor for this pedagogic effort. After your permission, I would like to come back to the first cooling of the liquid C0 40. When we cool the liquid from 300°C to 225°C then 184°C we see from the diagram (Pb-Sn) that phase weight compo. is increasing in terms of Sn from 0.207 at 225°C to 0.502 at 184°C that explains the growing of the alpha crystals and the decreasing of the space occupied by the liquid. Furthermore, when following the curve on the left where we have alpha we can see that the comp of Sn increases when we come down to 184°C and at the sometime the Pb comp decreases in alpha. But in your interpretation professor you said that the crystals of alpha were rejecting Sn which is the contrary according to the latest remarks!!! For me, the alpha crystal should reject Pb instead of Sn because when we follow that part of the curve the comp of Sn increases and that of Pb decreases. The some remark can be made on the right of the diagram when you explain the beta formation. I will be so glad to know your reply to that and I would like to thank you for your efforts because I learnt a lot of details from you.

Crystal clear, no pun intended. This is engineering gold!

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

You are great.You solved my all doubts very easily,thank you.

I really loved your teaching style. This video help me making one of my assignment which i was worried for. Thank u ❤

Well structured. Thank you!

Thank you! You explained this so well!

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us. Also what is alpha and beta

This video really helped me. I didn't know how to do my tutorial until I saw this. Thanx a lot

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

You're making amazing vids, thank you so much for your help.

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

voice is cute, the cool-down of hypoeut. part really helps a lot. thank you!

Why do you whisper? I need to have my speakers up so loud for this. update: Hands down the best video I've found so far, thank you.

thanks to you i don't have to go to class, i'm saving so much money on gas and learning much more than i would from my prof :D

Omg that was so well explained, thanks !

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

saved my studying time. You are great

thank you for this helpfull video. may i ask what happens,for example a 40% sn 60% pb structure at 100 C degree. how does it seems ? again it is going to have alternating plates ? in terms of micro structre.

Love this! To the point.

Like your confidence, and love you explanation

thx, help me alot to remember all this lesson from the past!

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

thumbs up for your effort. really nice and helpful lecture series.

Thanks that helped me to understand how grains react when the eutectic is forming !

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us. What is eutectic

@dyhawxyde7393

3 жыл бұрын

@@junaidhussain4781 few, that was 6 years ago, sorry 😂

great video :) thank you, waiting for more

i signed up just to like this video omgg thank u very much

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

Thank you so much, i have passed my subject because of your help i really appreciate that. god bless :)

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

She is like the organic chemestry tutor for mechanical engineers bro 10/10

@velocreators2250

Жыл бұрын

Literaly better explained than my phd teacher in 4 hours of class

just took a test and this made me feel very prepared !!!!!!

Thanks, this helped me a lot!

you saved my life..i love your voice..you are the best..im sure you heard all that before too :P but you really saved my ass cuz im having a midterm soon and i knew nothing about this chapter be4 this video..sooo thanks

you've and you will still save many asses girl ! cheers to your helpful spirit

thank you for your nice videos. the eutectum and iron phase diagram are very very helpful.

Is there a video explaining how to find out the percent composition of primary alpha and the secondary alpha regions. Like how much of the total alpha is primary and how much is in the alternating platelets?

Thanks so much this was super helpful!

your video is helped me a lot for my exam great lecture

Thanks very much, very clear description.

You're amazing! God bless you sista!

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

Can I get some more clarification on the phase weight fraction? What is it aka how is it different from the chemical composition and does it have a unit? and are all the single phases a phase weight fraction of 1?

How much alpha is for example at T=182 and 40% Sn in the eutectic structure and how much is left for the alpha plates?

Hi, can atoms when in solid region move between different phases?

thank you so much 205

What a video.... ! really life saver :)

Is there a way of calculating primary alpha and/or primary beta composition and weigth percent composition?

@AlanMW1996

7 жыл бұрын

I think you would do it as if you were on the eutectic line

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

can you please write why is the maximum strength at the eutectic composition ?

@manuelsanchez9782

6 жыл бұрын

Alternating platelets resist dislocation. The alpha and beta crystalline chunks don't have these alternating platelets that resist dislocation, therefore not having the alpha and beta crystalline chunks at the eutectic composition makes it the strongest composition since the only thing present would be the alternating platelets.

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

Great videos! thanks a lot

Great video!!

ur the best OMG your a savior props :)

gees!! I get it now; well done

You DA Best

you are amazing!!!!!!!!!!!!!!!!!!!!!

thanks this is extremely helpful

Thanks for the lovely explanation! but I still don't get why the eutectic microstructure is stronger than the hypo- or hyper-eutectic ones, even though they have precipitates of primary alpha or beta ( which impede dislocation motion) in addition to the lamellar structure?

@abhishekpariyar7895

7 жыл бұрын

They do have lamellar Eutectic microstructure, but the dislocations can move easily in volumes where the proeutectic alpha and proeutectic beta are present in the hypoeutectic and hypereutectic compositions. I hope I have answered your question.

@tyyy00

7 жыл бұрын

plus the proeutectic phases act as stress concentrations. Theres a reason why you want them as circle rather than 'spears'

So goood.......cover my all concepts

You are an amazing woman.

@bunstie5208

3 жыл бұрын

weird

@mtw9592

3 жыл бұрын

@@bunstie5208 4 years ago lol

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

hey! quick question, In the hypoeutectic region, do the alpha crystals stay when the temperature keeps getting lower than the eutectic temperature?

@profneilwalker

4 жыл бұрын

Yes.

Nice explanation. Great

extremely helpful thanks..

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

why did you plus instead of minusing when working out phase wt fract

Thankgod i found this!

Great video, thank you very much

I love you, Thank you :D

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

It's the night before my final and I was completely lost with phase diagrams until I found this.

@thefarmlifeinhd

3 жыл бұрын

Probably because of that common core math XD

Great tutorial! god bless

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

SOOOO helpful!!

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

@serisingh

3 жыл бұрын

@@junaidhussain4781 The phase fractions are determined using the lever rule. Many textbooks can explain the lever rule better than I if you need more information than this video provides. If the material and the phases that are expected to form are known, you can search literature for micrographs of each phase to help you identify the phases forming in your material. Different phases do have different strengths. You can use nanoindentation to gather hardness and (using an equation) strength data. But if the material is known, you can find already published data bout the hardness and strength of each phase present in the material.

when we go from 2 to 3, the percentage of tin is increasing in both alpha and liquid. how is this possible? she said that alpha is kicking tin out, then how come the percentage of tin increased? yes i have understood how to find the percentage out, but question is different.

saved my butt, thank you!!

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

thanks for wonderful lecture

The voice💕

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

helped me a lot .. thanks

this is dope !

Thanks!!

@junaidhussain4781

3 жыл бұрын

Hi i need help, how it got phase fraction from these numbers, also how would you determine the material from microscope, can it have an shape like phase, also could information from strength can help us.

thx , great video

How come the chemical composition sums don't always equal to one?

@revimfadli4666

6 жыл бұрын

Colton Skillings which ones? The weight fractions, the solubility limits, or something else?

Bravo.

thankyou very much :)

thank you so much