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Martensite in Steel
What is the correct way to call Martensite in steel? Is it un-tempered Martensite? Or martensite onl...
Hi Sanjay, Great question! Untempered martensite is what you get just after quenching. It leaves a...
Hi Joshua, Thanks for quick response, so the question remains is should I call it un-tempered mart...
Andrea Talamini Minotto
Usualyy, for as-quenced microstructure I use "untemperd martensite" or "tetragonal martensite". R...
Thanks Andrea. I should designate un-tempered martensite instead of martensite. Clarifies my co...
Untempered martensite should be the right term in your report to distinguish it from tempered mar...
I would concur if you have untempered martensite to report it as such. In the power industries ...
Thank you very much John. I am following your advice. Regards, ------------------------------ ...
Thanks Nnaemeka. I appreciate you taking time in replying my question. I will take your advice. ...
Sanjay: The term that you should use in your report depends on your interpretation and understand...
Thanks Larry. I will refer the book Light Microscopy of Carbon Steels. Side discussion: It is e...
Nihad Ben Salah
Hi Sanjay, When you have to name Martensite it is linked to the heat treatment that the steel has ...
Hello Nihad. The points you have made in you advice is true. I am not confused. I get those issu...
In some high alloy steels, the stress relief that accompanies tempering allows some retained a...
Hello John, Thank you very much for the information. I have seen un-tempered martensite (in ban...
I cannot say what is retained austenite or fresh (untempered) martensite in your micro. My b...
The microstructure you show appears to be plate type martensite in retained austenite which i...
Hi Robert, Thank you very much for the advice and valuable paper that I can use as a referen...
Nihad Ben Salah
Hi Sanjay, It is very unsual to see un-tempered martensite embedded in the core of normalized ...
Sanjay: Immediately after quenching, martensite is untempered, but untempered martensite is usu...
Thank you very much Nassos. I greatly appreciate it. Thanks to all of you for the advice and shar...
It is particularly useful to include key variants of untempered martensite, depending on the circum...
Thanks for your advice Neil. Mostly we use 5160H, 9250 and low carbon boron steels. These grades a...
While I can't confirm this, I would expect that George Krauss' book "Steels: Processing, Structure,...
Hello Bruce, I will definitely check it out. Thanks a lot for valuable advice. Regards, ---------...
Hi Sanjay, Residual stresses can also influence martensite transformation, and mechanically induced...
John Jerry Spray
Sanjay, It is traditional in the metallurgy literature to call untempered martensite fresh martens...
Martensite in Steel
Posted 03-08-2021 11:14
What is the correct way to call Martensite in steel? Is it un-tempered Martensite? Or martensite only?
I have limited years of experience in steel alloys processing, but never came across the term, "un tempered martensite" for martensite microstructure, unless there is presence of residual martensite in tempered martensite microstructure. Please advice.
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