@@massiveopenonlinelecturesi9023 I've got the best thing ..your awesome videos...now I'm tension free and going to study from this channel...thank you so much sir 🙏
Sir I really addicted to you, the way your teaching. This is the first time I watching your lecture and I'm learning more from you sir. Really hands off sir 👏👏👏
Presence of carbide in steel increases its hardness so application where we need more wear resistance property or cutting application we need more carbides in steel . But excess carbides is detrimental as steel becomes brittle when carbide is in more volume fractions or if it is in grain boundary in continuous form.
yes absolutely , iron carbide is harder than martensite. and more over hardness of martensite increases with its tetragonality and which increases with increases with carbon percentage
@@sanjitmetallurgy1205 I have made a complete course on Introduction physical metallurgy / materials science and engineering , the lecture 38 and 39 are for dislocation concepts and I will upload more
pearlite is a composite structure basically one is soft phase ferrite another is hard and brittle phase cementite . Basically peralite is a mixture of hard and soft phase. pearlite is a bycrystal, inter penetrating one another , where one is ferrite and another is cementite. or coperative growth of these two phase.
Absolutely it’s already there now railway tracks are made up of carbide free bainitic steel . This is different subject of matter . It’s very strong steel with high wear resistance
@@diptiranjanbaral4951 just my modify the alloying element in steel this precipitation of cementite is suppressed we will end up with bainite with retained austenite . Si is that alloying element which prevents this suppression of cementite precipitation .
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One of the best way of teaching I've seen ever.....please keep continuing this great work.
Thank you so much for your kind words . Keep watching other videos it’s completely free.
@@massiveopenonlinelecturesi9023 I've got the best thing ..your awesome videos...now I'm tension free and going to study from this channel...thank you so much sir 🙏
Board lectures are always the best. That's why I love engineering explained TH-cam channel
Sir I really addicted to you, the way your teaching. This is the first time I watching your lecture and I'm learning more from you sir. Really hands off sir 👏👏👏
Thank you so much . I wish all your concept will be clear after watching all the videos . You can share with your friends it’s free learning for all
I never really understood this in college but now I have to work with materials so I need this knowledge.
You can watch the whole topics on heat treatment and Physical metallurgy
Concept clear ho gaya mera ....Thank you sir....
Thanks a lot
Very well explained Sir, thank you
Welcome and thank you
Excellent sir
Thank you so much
very good explanation thanks a lot
Welcome, you can watch other concepts or whole physical metallurgy lectures
Austenite has twin lines..
Martensite needle like structure
Sir carbide is good or harmful for steel, what use of carbide in steel.
Presence of carbide in steel increases its hardness so application where we need more wear resistance property or cutting application we need more carbides in steel . But excess carbides is detrimental as steel becomes brittle when carbide is in more volume fractions or if it is in grain boundary in continuous form.
Is carbide harder than martinside?
yes absolutely , iron carbide is harder than martensite. and more over hardness of martensite increases with its tetragonality and which increases with increases with carbon percentage
Austenite microscope a dikhta ha kya??
Yes all you need a high temperature microscope
Prior austenite grain boundary ve dei kha hey transformation ke baad . Tem and sem me clear rikhata hy
sir more videos please
You can suggest the topic of videos you want
@@massiveopenonlinelecturesi9023 sir please make videos on dislocation theories
@@sanjitmetallurgy1205 I have made a complete course on Introduction physical metallurgy / materials science and engineering , the lecture 38 and 39 are for dislocation concepts and I will upload more
Tell me sir pearlite structure
pearlite is a composite structure basically one is soft phase ferrite another is hard and brittle phase cementite . Basically peralite is a mixture of hard and soft phase. pearlite is a bycrystal, inter penetrating one another , where one is ferrite and another is cementite. or coperative growth of these two phase.
@@massiveopenonlinelecturesi9023 thank you
Practically bainitic steel is possible
absolutely yes
Sir first I think ferrite in first stage
I didnt get you ? can you elaborate what is your question?
Sir, I have many questions...any helping no. Or mail?
Sure Bhumit you call me on 7008363747 or what’s aap me on 7855856611
But do share with you friends and let them also Learn and get knowledge
Practically bainitic steel is possible
Absolutely it’s already there now railway tracks are made up of carbide free bainitic steel . This is different subject of matter . It’s very strong steel with high wear resistance
Sir: how it is possible carbide free in bainitic steel.in banitic steel fine cementite is better than coarse
@@diptiranjanbaral4951 just my modify the alloying element in steel this precipitation of cementite is suppressed we will end up with bainite with retained austenite . Si is that alloying element which prevents this suppression of cementite precipitation .