Paper Title:

Martensite Midrib in an Fe-1C-17Cr Stainless Steel

Periodical Solid State Phenomena (Volumes 172 - 174)
Main Theme Solid-Solid Phase Transformations in Inorganic Materials
Edited by Yves Bréchet, Emmanuel Clouet, Alexis Deschamps, Alphonse Finel and Frédéric Soisson
Pages 67-72
DOI 10.4028/www.scientific.net/SSP.172-174.67
Citation Jer Ren Yang et al., 2011, Solid State Phenomena, 172-174, 67
Online since June, 2011
Authors Jer Ren Yang, Hsin Yi Lee, Hung Wei Yen, Hsiao Tzu Chang
Keywords Lenticular Martensite, Martensite Midrib, Stainless Steel, TEM, Thin Plate Martensite
Price US$ 28,-
Article Preview
View full size
Abstract

An Fe-1.0C-17Cr (wt.%) stainless steel was subjected to subzero treatment to investigated the structure of martensite midrib. The midrib region appeared in the thin plate and lenticular martensites have been observed detailed by TEM. The TEM result reveals that the transformations of thin plate martensite and lenticular martensite are initiated at the same midrib region. The former keeps the lattice-invariant deformation mode of twinning during subsequent growth, whereas the latter combines both twinning and slip modes. Midrib region is a preferential position for carbide precipitations after tempering. M3C and M23C6 carbide were found in this alloy, and related to the ferrite by Bagaryatsky OR and K-S OR, respectively.