On the origin of the ratchetting process in austenitic stainless steel AISI 316 L at T<0.4 Tm

被引：0
|
作者：
Gaudin, C [1 ]
Feaugas, X [1 ]
机构：
[1] UTC, LG2mS UPRES A6066 CNRS, F-60205 Compiegne, France
来源：
ADVANCES IN MECHANICAL BEHAVIOUR, PLASTICITY AND DAMAGE, VOLS 1 AND 2, PROCEEDINGS | 2000年
关键词：
ratchetting process; inter; and intragranular back stresses; dislocation features; DSA;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The aim of this work is to study the cyclic creep behaviour of an austenitic stainless steel (316L) and especially, the effect of the peak stress (Sigma (max)), the mean stress (Sigma (m)) and temperatures on the ratchet strain rate. Ratchetting process occurs only in wavy slip conditions in relation with s.f.e. and results to a particular evolution of inter- and intragranular back stresses during unloading/loading sequences. In a specific range of temperature Dynamic Strain Ageing (DSA) occurs and promotes planar slip. Then this last process decreases cyclic creep rate.
引用
收藏
页码：1039 / 1045
页数：7
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