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Excellent explanation Sir, But I have a question Sir if some one asked to make us austenetic iron then how we do that? Because cooling is to be done up to room temp. Only.
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When we heated the steel at 830 to 1100 for 10 minutes and cooled in air, we saw an image of austenite grains on a piece of steel. This is the best method for testing austenite grains.(Please tell me correct explain.)
Aapne kaha pure iron ko soft bnane k liye 910 degree temperature me FCC hota h. Mera question h ki 910 degree se normal temperature jbtk aayega nahi to use kaise krenge material ko Aur normal temperature aane k baad kya iron soft rahega
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Sir with due respect.....curie temperature par sirf magnetic properties change hoti hai aur waha enthalpy change nai hota hai....so waha par graph me step nai ana chahiye na?
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great video sir. sir i have a question. As you said that B.CC is for hard materials. So what will be in this case with pure iron.either it will be again hard in delta region?
Time depends upon your fire Maan lo ki chai rakhi hai aur gas slow hai to chai ka temperature late increase karega Aur agar full gas on hai to temperature jaldi badega Hame temperature se matlab hai Jaada aag jalao yaa kam vo aap par depend hai Aur thanda hona bhi alag alag hota hai
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Excellent explanation Sir,
But I have a question
Sir if some one asked to make us austenetic iron then how we do that? Because cooling is to be done up to room temp. Only.
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मुझे आपकी पढ़ाई bahot समझ में आती h
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When we heated the steel at 830 to 1100 for 10 minutes and cooled in air, we saw an image of austenite grains on a piece of steel. This is the best method for testing austenite grains.(Please tell me correct explain.)
Nhi
Saddan quenching kareto hi austenite ayega
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Thanks sir ji iron carbon diagram good explanation sir ji
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Nice explanation. Sir aapne bola BCC hard hota and FCC soft then after 1400 °C FCC se again BCC Q ban jata h ?
Can somebody answer it ?
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Aapne kaha pure iron ko soft bnane k liye 910 degree temperature me FCC hota h. Mera question h ki 910 degree se normal temperature jbtk aayega nahi to use kaise krenge material ko
Aur normal temperature aane k baad kya iron soft rahega
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Mera ek question hai
Time line ke baare me aap nahi bathaye ki kithna time tak temperature ko badhaye
Please explain lower critical temperature & upper critical temperature
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Delta iron mai again BCC structure create horaha hai but you told BCC hard materials k lye hota hai so how is it possible to get BCC at 1400 degrees ?
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Sir with due respect.....curie temperature par sirf magnetic properties change hoti hai aur waha enthalpy change nai hota hai....so waha par graph me step nai ana chahiye na?
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Sir high temperature BCC bhi hard rahega kya?
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Crystal structure change in iron is recrystalisation sir or change in grain
Phase diagram par lecture banaye sir🙏
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Ye cooling curve tha ya heat up curve?
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Gamma iron se delta iron convert hobe pe iron ka structure firse waps FCC me chala jyga ?
ye iron bcc se fcc gayaa .. aalfa se gaamaa me .. phir gaama se delta bcc hard hua to hard hhua na ? to ye aalfa gema ka kya matlab hain ?
Sir critical temperature ke bare mein bataye pls
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Watch this
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sir i have a question. As you said that B.CC is for hard materials. So what will be in this case with pure iron.either it will be again hard in delta region?
Yes sir please iska answer bata dijiye
beautiful sir
Kitne time ke baad hota hai kiu ki time me kuch value nhi diya hua hai
Time depends upon your fire
Maan lo ki chai rakhi hai aur gas slow hai to chai ka temperature late increase karega
Aur agar full gas on hai to temperature jaldi badega
Hame temperature se matlab hai
Jaada aag jalao yaa kam vo aap par depend hai
Aur thanda hona bhi alag alag hota hai
Sir borad ke side me khade hua kariye thoda
Kiyu