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固溶时效后高氮奥氏体不锈钢的物理化学相分析

Physicochemical phase analysis of high nitrogen austenitic stainless steels after solution treatment and aging

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【Author】 MA Yu-xi1),RONG Fan2),LI Ling-xia2),ZHOU Rong3),JIANG Ye-hua3)1)Research and Development Center,Wuhan Iron and Steel(Group)Corp.,Wuhan 430080,China 2)Institute for Structural Materials,Central Iron & Steel Research Institute,Beijing 100081,China 3)Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650093,China

【机构】武汉钢铁(集团)公司研究院；钢铁研究总院结构材料研究所；昆明理工大学机电工程学院；

【摘要】采用物理化学相分析技术研究了高氮奥氏体不锈钢固溶时效后的碳、氮化物析出行为,确定了析出相的类型、粒度分布、含量及组成结构式.结果表明:氮含量低的1Cr22Mn15N0.6以M23C6型碳化物析出为主,氮含量高的1Cr22Mn15N0.9以(CrFe)2N1-x型氮化物析出为主,高氮奥氏体不锈钢中析出物的总量随时效时间的延长而增加.更多还原

【Abstract】 Precipitation of nitrides and carbides in high nitrogen austenitic stainless steels after solution treatment and aging was investigated by using a physicochemical phase analysis method.The character,particle size distribution,content and structural formulae of phases in the alloy were determined.It is shown that the precipitate is mostly M23C6 carbide in 1Cr22Mn15N0.6 steel and(CrFe)2N1-x nitride in 1Cr22Mn15N0.9 steel respectively,and its volume fraction increases with prolonging the aging time.更多还原

【关键词】高氮奥氏体不锈钢；固溶时效；物理化学相分析；析出行为；
【Key words】 high nitrogen austenitic stainless steel； solution treatment and aging process； physicochemical phase analysis； precipitation behavior；

【基金】国家重点基础研究发展计划资助项目(No.2004CB619103)

【文献出处】北京科技大学学报 ,Journal of University of Science and Technology Beijing , 编辑部邮箱 ,2009年03期

【分类号】TG142.71
【被引频次】5
【下载频次】595

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