oh shoot, I just looked at it again and I totally missed that. I will have to re-record this video I think period thank you for catching it it would be 100% pearlite.
I sat through 4 hours of Mat Sci lectures and had no idea what was going on. You demonstrated everything I needed to know in 6 minutes. This is fantastic content. Thank you!
The passion you have for Materials Science and Engineering and Physics is clearly evident on every single vídeo you upload. I found all these very useful even though I am a Materials Engineer and MSc. You have explained a lot of things I tought I understood. Great work you are doing!!! Greetings from Mexico.
Hey, it's my pleasure! Do me a favor and like, share, and subscribe so I can keep making great material science content! By the way, we have a podcast Materialism that you might dig.
wow this was incredible. I missed my classes and couldnt understand anything from the powerpoint but now that i see this everything makes sense. thanks!
Oh good luck! For what it's worth, I held a final exam review two or three nights ago and posted the video. There's probably quite a bit of overlap. th-cam.com/users/live8SQcuM1qea0?feature=share
So glad to help!! Do me a favor and check out our podcast Materialism! It's the best materials science podcast. We would love to get a few more iTunes reviews so that others could discover it!
@@TaylorSparks I’m in my exam period right now, but material silence was (surprisingly) one of the courses I’m really interested in. So after, I will definitely check it out!
Very helpful video! but I had one question regarding the last problem that was solved. How is it tempered martensite when the martensite is heated beyond the low critical temperature? Isn't tempering lower than that temperature but higher than recrystallization?
After cooling to a certain temperature, you hold it at that temperature instead of letting it cool completely. Its usually put in a furnace of the reset temperature and held there until the entire material is at that temp.
First of all, thank you very much for your precise, informative videos. My question is while you were reading the TTT diagrams and determining transformation percentage, how is it possible for C to go back in time? I had some confusion understanding that backward move. Thanks again.
I think they just re start the process at a different temperature. For example, in g you get 100% pearlite and then you take that 100to 350 and start to cool down again, but as it is 100 pearlite you Don have more austenite to transform. But its like taking the material all over again to the beginning, like you do a second heat treatment at a different temperature
Hello, I have a question! If the TTT diagram (for the hypoeutectoid area) has the start of the pearlite transformation at t0=0sec, 730oC & the start of the ferrite transformation at t0=0sec, 610oC, after cooling instantly from 900oC to room temperature, does it form pearlite + ferrite or martensite ?
Great video, I feel like I'm finally understanding Materials:) I was was just wondering if instead of quenching off the start, if you used 'normalizing' for some period of time to the same points you did in this video would all the answers remain the same?
@@TaylorSparks I'm doing a lab and they're referring to normalizing as a slower cooling method, it almost looks like continuous cooling curve, and for example, the curve goes from 800 degrees to roughly 550 for the 'normalizing' stage. Does that make sense? The word is also throwing me off haha, thanks in advance!
@@justinbreau4623 okay, in that case you would need to use a different diagram. I've got a separate video on continuous cooling diagrams. I don't have as many worked examples though, unfortunately.
@@TaylorSparks hello, I had a question, if I formed 50 percent bainite and then quench it to form 50 percent martensite, will bainite still be at the grain boundary? Because undercooking is high so it shouldn’t right?
theres something i dont get, specifically for a. When we quench a down into martensitic temperature, it appears to cross the pearlite 100% line vertically. does this not count/is this disregarded if we are talking about quenching?
i don’t know if you’ll ever see this but i got an exam in a few days and i didn’t get the point where u said at 5:28 g is 50% bainite and martensite. why isn’t it a 100% perlite instead? the reaction is over. it passed the 3rd curve. i didn’t get it.
@@mustfabaki because once the reaction has taken place, this is not reversible until you heat the sample back up above the austinite temperature. So if part of the sample has transformed then there's only 50% left to transform under a different condition
I have question, if cooling line enter cross the pearlite start line but leave cross the banite finish line. What would it be? The 100% banite or some pearlite+ banite?
No. If you quench it it will preserve the structure. If you want lower bainite you need to lower the temperature a little bit and hold it in the lower bainite region
@@Sibasish07 makes perfect sense but also I think we might have to go cryogenic temperatures in order to have %100 martensite. If I am not mistaken our professor had explained said phonemena this way!
@@TaylorSparks but why? if we cool it further, then the function has to move to the right, not to the left, am I correct? Or at least straight downwards. I don't get it how can we just reset the time
![[#2024MAMA] ROSÉ (로제), Bruno Mars - APT. | Mnet 241122 방송](http://i.ytimg.com/vi/dgGqD28J6aQ/mqdefault.jpg)
For G, why don't we take into account the first jab out into the 100% pearlite region? Does the reset just cancel out all that original pearlite?
oh shoot, I just looked at it again and I totally missed that. I will have to re-record this video I think period thank you for catching it it would be 100% pearlite.
Thanks for this question
@@TaylorSparks thanx!
xactly had this question on my mind . Thnz for pointing to and taylor thnz for answering
Soooooo was this fixed is there another video out?
I sat through 4 hours of Mat Sci lectures and had no idea what was going on. You demonstrated everything I needed to know in 6 minutes. This is fantastic content. Thank you!
That makes me so happy to hear it. Let me know if there is other content that you need clarifying.
The passion you have for Materials Science and Engineering and Physics is clearly evident on every single vídeo you upload. I found all these very useful even though I am a Materials Engineer and MSc. You have explained a lot of things I tought I understood. Great work you are doing!!! Greetings from Mexico.
Dude! This is so nice of you to say! Y buena suerte a vos en México!
What a legend. You dropped this 👑
@@peterlohr4544 hahaha. Thanks homie!
This is amazing. I learned more from your videos studying before finals than I did during an entire semester of classes.
So glad to hear it!!
you are a genius man... explained in 2 min... really hats off
You're a lifesaver! My exam is tomorrow. Thank you so much!
Hey, it's my pleasure! Do me a favor and like, share, and subscribe so I can keep making great material science content! By the way, we have a podcast Materialism that you might dig.
Got an A- in my Materials Engineering course. Thanks a lot for these videos : )
Congratulations 👏🎉🎉.
What University do you attend?
You make the best MSE content out there FYI
💪🏻💪🏻💪🏻
thank you for your efforts
I have a question on the value of g
It would be 100% pearlite true?
wow this was incredible. I missed my classes and couldnt understand anything from the powerpoint but now that i see this everything makes sense. thanks!
Thank you for helping me pass the metallurgy class.
@@xxj7445 super glad to help.
Really helped solidify the concepts for my mechanics and materials final exam tomorrow.
Oh good luck! For what it's worth, I held a final exam review two or three nights ago and posted the video. There's probably quite a bit of overlap. th-cam.com/users/live8SQcuM1qea0?feature=share
it was super useful, the only clear explanation I found online
super glad to help!
all these videos are really helping me to understand the material, thank u very much!
So glad to help!! Do me a favor and check out our podcast Materialism! It's the best materials science podcast. We would love to get a few more iTunes reviews so that others could discover it!
@@TaylorSparks I’m in my exam period right now, but material silence was (surprisingly) one of the courses I’m really interested in. So after, I will definitely check it out!
Wonderful explanation! Youre better than my prof :) Thank you!!
Your explanation is great. Thank you soo much
Very helpful video! but I had one question regarding the last problem that was solved. How is it tempered martensite when the martensite is heated beyond the low critical temperature? Isn't tempering lower than that temperature but higher than recrystallization?
That is what I was looking for, thanks so much!!
@@barosnb my pleasure. Like and sub please!!
you are the materials science goat i love you
thank you, you made me gain a lot of time !
What do you mean reset, for example in C, that the line goes back. What would be the process to reset it?
I didn't get that either. Have you found an explanation to that?
@@xonio2881 nope, i am still wondering.
After cooling to a certain temperature, you hold it at that temperature instead of letting it cool completely. Its usually put in a furnace of the reset temperature and held there until the entire material is at that temp.
I'm from Italy, you are great, thanks
Woohoo! It's so cool to see this channel helping people all around the globe!
Damn, this video is really helpful than my lecture notes 🤩
Great explanation. Thanks for making this video @TaylorSparks
Super glad to help
I believe it should be 100% pearlite for (g), Besides that great video!
right? i think so as well
Taylor, please, explain why for G all of it didnot turn to pearlite?
@@Miniature_Prep no you are right. I messed that one up and it should be 100% perlite. I think I didn't see that first region above when I recorded it
First of all, thank you very much for your precise, informative videos. My question is while you were reading the TTT diagrams and determining transformation percentage, how is it possible for C to go back in time? I had some confusion understanding that backward move. Thanks again.
Yes, I too have that issue, could you please explain it. Thanks in advance. P.S. great video by the way.
I think they just re start the process at a different temperature. For example, in g you get 100% pearlite and then you take that 100to 350 and start to cool down again, but as it is 100 pearlite you Don have more austenite to transform. But its like taking the material all over again to the beginning, like you do a second heat treatment at a different temperature
thx you sir because of i understand how to read ttt diagram because of you i pass the exam hehe thx sir
Hello, I have a question! If the TTT diagram (for the hypoeutectoid area) has the start of the pearlite transformation at t0=0sec, 730oC & the start of the ferrite transformation at t0=0sec, 610oC, after cooling instantly from 900oC to room temperature, does it form pearlite + ferrite or martensite ?
Great video, I feel like I'm finally understanding Materials:) I was was just wondering if instead of quenching off the start, if you used 'normalizing' for some period of time to the same points you did in this video would all the answers remain the same?
What exactly do you mean by normalizing? I'm not sure I follow.
@@TaylorSparks I'm doing a lab and they're referring to normalizing as a slower cooling method, it almost looks like continuous cooling curve, and for example, the curve goes from 800 degrees to roughly 550 for the 'normalizing' stage. Does that make sense? The word is also throwing me off haha, thanks in advance!
@@justinbreau4623 okay, in that case you would need to use a different diagram. I've got a separate video on continuous cooling diagrams. I don't have as many worked examples though, unfortunately.
@@TaylorSparks Ahh gotcha, thank you so much! I'm going to go watch that video, this was beyond helpful! Really appreciate it!
@@TaylorSparks hello, I had a question, if I formed 50 percent bainite and then quench it to form 50 percent martensite, will bainite still be at the grain boundary? Because undercooking is high so it shouldn’t right?
theres something i dont get, specifically for a. When we quench a down into martensitic temperature, it appears to cross the pearlite 100% line vertically. does this not count/is this disregarded if we are talking about quenching?
Correct
Sir thank you, you are a life saver!!!!
Glad to help!
Thank you so much!! Awesome videos :)
so clearly ....amazing .....great thanks ...
You lost me on the "reset" part on C. What do you mean by "reset"? Why does the time line go backwards instead of straight down?
i don’t know if you’ll ever see this but i got an exam in a few days and i didn’t get the point where u said at 5:28 g is 50% bainite and martensite. why isn’t it a 100% perlite instead? the reaction is over. it passed the 3rd curve. i didn’t get it.
@@mustfabaki because once the reaction has taken place, this is not reversible until you heat the sample back up above the austinite temperature. So if part of the sample has transformed then there's only 50% left to transform under a different condition
Thanks for the video :)
How do you estimate the percentages because im lost
Thanks Taylor!
Really helped. Thanks a lot!!
I have question, if cooling line enter cross the pearlite start line but leave cross the banite finish line. What would it be? The 100% banite or some pearlite+ banite?
Like a diagonal line? Yes you'll get kix.
@@TaylorSparks Thank you. Yes, like the diagnal line.
Great video!!
thankyou for your insight, stay in love
Thank you sir truly insightful
In part c why we don't have 50% P and 50% bainite?
It was really great...
This was really helpful thank you sir!
WELL EXPLAINED THANKS
u saved my life
Wish i could give you a million likes
Yeyeye!
Amazing thank you brother
That's very useful for my coursework. Thank you!
That's really helpful to me 👍👍
Hello, is it possible to turn upper bainite to lower bainite by quenching it?
No. If you quench it it will preserve the structure. If you want lower bainite you need to lower the temperature a little bit and hold it in the lower bainite region
@@TaylorSparks oh cheers this is what i was looking for. Thanksss!!
i didn't get the g part :( Do we ignore the pearlite formation?
Nah if you check the comments he says he accidently missed the top part. Should be 100% pearlite.
hello sir, what if i want make 10%cementite ?? and also i want get 12% Ferrite + 30% austenite
Hi, our professor told that we never form 100 percent martensite but about 90 percent and the rest 10 percent austenitic steel. Is it correct?
I actually don't know!!
@@TaylorSparks I actually asked him, it only happens when we add austenizing element. Thanks btw for the video
@@Sibasish07 thank you!
@@TaylorSparks hello sorry to disturb you again, but can you make some exercises on hypoeutectoid ttt diagram or hypereutectoid ttt diagram? Thankss
@@Sibasish07 makes perfect sense but also I think we might have to go cryogenic temperatures in order to have %100 martensite. If I am not mistaken our professor had explained said phonemena this way!
very useful, thank you
i still don't get where you're getting 50% and 100%
Thanks so much .its now fine.
Thank you!
Very useful
Awesome❤️
*G would be 100% pearlite
Great thanks Sir
thanks a lot.
Thanks a lot!
what's "resetting"?
We take time back to zero
@@TaylorSparks but why? if we cool it further, then the function has to move to the right, not to the left, am I correct? Or at least straight downwards. I don't get it how can we just reset the time
@@TaylorSparks do you mind explaining this one a bit more? Had the same problem
Thank you my friend
Thank you
it was very useful
You amazing, thanks. :)
Pena não ter em português 😟
Pena! En español podría
great🙌👌
Grover Haven
thx a lot,
Second example not explained well !
ur a god
Lol, thanks. Check my channel out. Loads of MSE stuff in different playlists
You're saving my ass, haha
I gotchu homie
you are a fucking legend
🏅🏅🏅🫢
nice exercise but plz look for G...it is already converted to 100% Pearlite!!!
You are right!!
Wrong G answer
Metz Fort
Me being 11*Yeah but... what?*