| 0Crl7Ni4Cu4Nb沉淀硬化不锈钢锻造裂纹分析 |
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| 引用本文： | 翟爱群,杨钢,蔡梅,李昌永,李许明,马凤春. 0Crl7Ni4Cu4Nb沉淀硬化不锈钢锻造裂纹分析[J]. 特钢技术, 2012, 0(2): 5-9 |
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| 作者姓名： | 翟爱群 杨钢 蔡梅 李昌永 李许明 马凤春 |
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| 作者单位： | 沈阳航空职业技术学院;钢铁研究总院结构材料研究所;沈阳黎明发动机制造公司 |
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| 摘 要： | 实验室分析了0Cr17Ni4Cu4Nb不锈钢锻件的锻造裂纹产生原因,通过金相和扫描电镜观察,结果表明:Nb元素的偏析是引起锻造裂纹重要因素;Cu元素的偏析将在高温阶段析出大量的富铜相,导致高温塑性降低,也是导致锻造裂纹的原因之一。
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| 关 键 词： | 沉淀硬化不锈钢 锻造裂纹 偏析 |
Analysis of Forging Crack on 0Cr17Ni4Cu4Nb Precipitation Hardening Stainless Steel |
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| Zhai Aiqun,Yang Gang,Cai Mei,Li Changyong,Li Xuming,Ma Fengchun. Analysis of Forging Crack on 0Cr17Ni4Cu4Nb Precipitation Hardening Stainless Steel[J]. Special Steel Technology, 2012, 0(2): 5-9 |
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| Authors: | Zhai Aiqun Yang Gang Cai Mei Li Changyong Li Xuming Ma Fengchun |
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| Affiliation: | 1.Shenyang Aeronautical Vocation Institute Liming Campus,Shenyang 110043 ;2.Institute for Structural Materials of Central Iron and Steel Research Institute,Beijing 100081;3.Shenyang Liming Engine Manufacturing Co.,Shenyang 110043,China) |
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| Abstract: | The cause for forging crack was studied experimentally on stainless steel 0Cr17Ni4Cu4Nb by means of optical micrograph and SEM analysis.The result shows that the segregation of niobium is the main cause for forging crack,and the segregation of copper would cause the precipitations of plentiful rich-Cu phases at high temperature,which result in the decrease of high temperature plasticity,and are one of the cause producing forging crack. |
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| Keywords: | Precipitation hardening stainless steel Forging crack Segregation |
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