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首页> 外文期刊>材料とプロセス: 日本鉄鋼協会講演論文集 >Alloy design and material characterization of high nitrogen austenitic stainless steels
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Alloy design and material characterization of high nitrogen austenitic stainless steels

机译:高氮奥氏体不锈钢的合金设计和材料表征

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摘要

The current status of research activities on HNS in KIMM are introduced in terms of alloy development, precipitation behavior of second phases and deformation behavior. The low Ni austenitic HNS with various composition ranges were prepared through the alloy design based on thermodynamic calculation and pressurized VIM method. The cellular Cr_2N precipitates significantly deteriorated the elongation and changed the orientation dependence of deformation twinning. The deformed microstructure was changed from planar dislocation structure to SF together with well-developed deformation twinning with increasing strain. And, the deformation twinning showed strong orientation dependence.
机译:从合金发展,第二相的析出行为和变形行为等方面介绍了KIMM中HNS的研究活动的现状。通过基于热力学计算和加压VIM法的合金设计,制备了各种组成范围的低Ni奥氏体HNS。蜂窝状Cr_2N析出物显着降低了延伸率,并改变了形变孪晶的取向依赖性。变形的微观结构从平面位错结构变为SF,同时随着应变的增加,发达的形变孪生。并且,变形孪晶显示出强烈的取向依赖性。

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