Mechanical Stability of Retained Austenite in Tempered 9Ni Steel.

机译：9Ni钢回火中残余奥氏体的力学稳定性。

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The behavior of the thermally stable austenite in the ductile fracture surface layer of a grain-refined and tempered 9Ni steel broken at 77 K was studied through use of Moessbauer spectroscopy and transmission electron microscopy. Thin foils revealing the microstructural profile of the fracture surface layer were prepared by electroplating a thick pure iron layer on the fresh fracture surface, then thinning a profile sample through a combination of conventional twin-jet electropolishing and ion milling techniques. The results of both Moessbauer spectroscopy and TEM studies showed that the thermally stable austenite transforms to a dislocated martensite in the deformed zone adjacent to the ductile fracture surface. This result suggests that transformation of the retained austenite present in tempered 9Ni steel is compatible with low temperature toughness, at least when the transformation product is a ductile martensite. (Author)

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Syn, C. K.; Fultz, B.; Morris, J. W.;
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年度 1978
页码 1-23
总页数 23
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Steel; Fracture(Mechanics); Austenite; Nickel; Electron microscopy; Tempering; Thermal stability; Microstructure; Deformation; Ductile brittle transition; Phase transformations; Dislocations; Martensite; Toughness; Cryogenics; Mechanical properties; Steel 9Ni; Moessbauer spectroscopy; Transmission electron spectroscopy;

机译：钢;断裂（力学）;奥氏体;镍;电子显微镜;回火;热稳定性;微观结构;变形;韧性脆性转变;相变;位错;马氏体;韧性;低温;机械性能;钢9Ni;穆斯堡尔光谱;透射电子光谱;

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7. Mechanical stability of retained austenite in tempered 9Ni steel [O] . C. K. Syn, B. Fultz, J. W. Morris 1978

机译：钢化9ni钢保留奥氏体的机械稳定性

Mechanical Stability of Retained Austenite in Tempered 9Ni Steel.

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