Effect of Cr2N Precipitation on Deformed Microstructure in High Nitrogen Austenitic Stainless Steel

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The effect of Cr2N precipitation on deformed microstructure in high nitrogen austenitic Fe-18Cr-18Mn-2Mo-0.9N steel was investigated with a particular emphasis on deformation twinning. Based on the crystallographic analysis in the stereographic projection, the orientation relationship between austenite (γ) matrix and Cr2N was determined to be Cr2N [110]γ //[1100] and Cr2N (111) γ //(0001) . The deformation twinning had {111} < 112 > crystallographic component similar to that of cellular Cr2N. The cellular Cr2N precipitates caused a different orientation dependence of deformation twinning: only one twinning system in the <111 > grain was activated almost parallel to the growth direction of Cr2N.

Info:

Periodical:

Key Engineering Materials (Volumes 345-346)

Edited by:

S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim

Pages:

161-164

Citation:

T. H. Lee et al., "Effect of Cr2N Precipitation on Deformed Microstructure in High Nitrogen Austenitic Stainless Steel ", Key Engineering Materials, Vols. 345-346, pp. 161-164, 2007

Online since:

August 2007

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$41.00

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