Impact properties of high-nitrogen austenitic stainless steels

Zhizhong Yuan; Qixun Dai; Xiaonong Cheng; Kangmin Chen; Wenwei Xu

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Impact properties of high-nitrogen austenitic stainless steels

机译：高氮奥氏体不锈钢的冲击性能

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The Charpy v notch (CVN) impact properties of two kinds of high-nitrogen austenitic stainless steels (HNASS), Fe-24Mn-13Cr-lNi-0.44N and Fe-24Mn-18Cr-3Ni-0.62N, were investigated at different temperatures. Results show that with the increase of nitrogen concentration, the absorbed-in-fracture energy decreases rapidly; microstructures, such as peeled off layer and transgranular brittle fracture facet (TBFF) are the features of brittle fracture of HNASSs when impacted at - 190 ℃. The transformation of fracture microstructures of them with the descending temperatures was also proposed.

机译：研究了两种高氮奥氏体不锈钢（HNASS）在不同温度下的夏比v缺口（CVN）冲击性能Fe-24Mn-13Cr-1Ni-0.44N和Fe-24Mn-18Cr-3Ni-0.62N 。结果表明，随着氮浓度的增加，裂缝吸收的能量迅速减小。在190℃冲击时，HNASSs的脆性断裂特征是剥落层和晶界脆性断裂面（TBFF）等微结构。还提出了随着温度的降低其断裂组织的转变。

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《Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing》 |2008年第2期|p.202-206|共5页
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Zhizhong Yuan; Qixun Dai; Xiaonong Cheng; Kangmin Chen; Wenwei Xu;
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机译：高氮奥氏体不锈钢制造技术

Impact properties of high-nitrogen austenitic stainless steels

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