Influence of proportional and non-proportional loading on deformation behaviour of austenitic stainless steel-macro and micro analysis

被引：21
作者：
Dey, Rima [1 ]
Tarafder, Soumitra [2 ]
Sivaprasad, S. [2 ]
机构：
[1] Acad Sci & innovat res AcSIR, Ghaziabad 201002, India
[2] CSIR, Natl Met Lab, Jamshedpur 831007, Bihar, India
来源：
THEORETICAL AND APPLIED FRACTURE MECHANICS | 2019年 / 100卷
关键词：
Maternsite; Fatigue; Multiaxial; Non-proportional hardening; LOW-CYCLE FATIGUE; BIAXIAL STRESS STATES; RATCHETING RESPONSES; PLASTIC-DEFORMATION; TEMPERATURE; MARTENSITE; MODEL; EVOLUTION; PARAMETER;
D O I：
10.1016/j.tafmec.2019.01.031
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Effect of in-phase and out of phase cyclic loading on fatigue behaviour was evaluated for 304LN stainless steel using tubular specimens. It was found that additional hardening observed for out of phase loading was a consequence of more grains participating in deformation process. Further, strains in matrix were higher and evenly distributed across grains for out of phase loadings as quantified through misorientation analysis. Disparities in misorientation studies were accounted by substructural development investigated through electron microscopy. Additionally, elastic and plastic strains were found to be out of phase with respect to total strains for out of phase loading.
引用
收藏
页码：342 / 353
页数：12
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