Local stress evaluation during deformation in SUS304 austenitic stainless steel
Local stress evaluation during deformation in SUS304 austenitic stainless steel
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SUS304奥氏体不锈钢变形过程中的局部应力评估
DOI：
10.1016/j.matpr.2015.07.436
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
N. Tsuji
中科院分区：
文献类型：
--
作者：
M. Chen;A. Matsumoto;A. Shibata;D. Terada;T. Miyazawa;M. Sato;H. Adachi;N. Tsuji
在这项研究中，在SUS 304奥氏体不锈钢拉伸变形过程中的局部应力测量的技术称为能量色散X射线衍射显微镜使用同步辐射X射线衍射在SPring-8。分别给出了不同晶粒内两个位置的局部应力演化。在某一位置，主应力的拉伸分量随拉伸应变的增大而增大，但与宏观拉伸方向略有偏离。另一方面，在另一个位置，主应力的拉伸分量与宏观拉伸方向显著不同，并且由于马氏体相变，观察到局部应力方向的急剧变化。
In this study, the local stress in an SUS304 austenitic stainless steel was measured during tensile deformation by a technique called energy dispersive X-ray diffraction microscopy using synchrotron radiation X-ray diffraction in SPring-8. The local stress evolution of two positions in different grains, respectively, were shown in this paper. At one position, the tensile component of principal stress increased with increasing the tensile strain, but slightly deviated from the macroscopic tensile direction. On the other hand, at another position, the tensile component of principal stress was substantially different from the macroscopic tensile direction, and the drastic change in direction of local stress were observed due to martensitic transformation.