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Effects of alloying and treatment on void swelling of 316 stainless steels

Published online by Cambridge University Press:  31 January 2011

B.X. Liu ,
S.L. Lai  and
J.G. Sun
B.X. Liu
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China; and Center of Condensed Matter and Radiation Physics, CCAST (World Laboratory), Beijing 100080, China
S.L. Lai
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
J.G. Sun
Affiliation:
HVEM Laboratory of the General Research Institute of Nonferrous Metals, Beijing 100088, China
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Abstract

Several samples of type 316 stainless steels, which were treated differently and modified with minor elements (such as Ti, Nb, etc.), were irradiated by 1 MeV electrons in HVEM at temperatures ranging from 823 K to 883 K. Void swelling behavior of the steels was investigated, and three parameters, i.e., swelling, void density, and void size, were measured. The results show that prior cold work improves the swelling resistance of type 316 stainless steels more effectively than solid-solution treatment. It is also shown that Ti is the best alloying element studied that can suppress void nucleation and its growth drastically by acting as sinks and impeding dislocation climb, resulting in the reduction of void swelling.

Type
Articles
Information
Journal of Materials Research , Volume 6 , Issue 8 , August 1991 , pp. 1650 - 1654
Copyright
Copyright © Materials Research Society 1991

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