Title of article
Effects of temperature cycling and nitrogen on the stability of microstructures in austenitic stainless steels
Author/Authors
Yuan، نويسنده , , Z.Z. and Dai، نويسنده , , Q.X. and Zhang، نويسنده , , Q. C. Cheng، نويسنده , , X.N. and Chen، نويسنده , , K.M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
5
From page
18
To page
22
Abstract
The influence of temperature cycling from room temperature to 77 K on nitrogen-alloyed austenitic stainless steels, Fe24Mn13Cr0.4N, Fe24Mn18Cr3Ni0.6N, Fe1Mn19Cr8Ni0.2N and Fe17Mn14Cr1Ni0.4N, has been studied by optical microscopy and scanning electronic microscopy (SEM). Results show that the phase transformation from austenite to ε martensite takes place due to the temperature cycling and stress concentration, whereas nitrogen can stabilize the austenitic microstructures greatly. Finally, the mechanism of the phase transformation and the structure of ε martensite are discussed in detail.
Keywords
Nitrogen , Austenitic stainless steels , Phase transformation , martensite
Journal title
Materials Characterization
Serial Year
2008
Journal title
Materials Characterization
Record number
2266598
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