Microstructure evolution in CLAM steel under low cycle fatigue

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:607

Article

Hu, Xue^1,2  Huang, Lixin^1,3  Yan, Wei¹  Wang, Wei¹  Sha, Wei⁴  Shan, Yiyin¹  Yang, Ke¹ 

[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

[4] Queens Univ Belfast, Sch Planning Architecture & Civil Engn, Belfast BT9 5AG, Antrim, North Ireland

关键词: Electron microscopy;    Steel;    Fatigue;    Grain growth;    Grain refinement;    Dislocations;   

DOI  :  10.1016/j.msea.2014.04.005

来源: Elsevier

【 摘 要 】

In the process of room-temperature low cycle fatigue, the China Low Activation Martensitic steel exhibits at the beginning cyclic hardening and then continuous cyclic softening. The grain size decreased and the martensitic lath transformed to cells/subgrains after the tests. The subgrains increase in size with increasing strain amplitude. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

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