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scm435 gang chi lun li zi shen dan yan jiu
Author(s): 
Pages: 30-34
Year: Issue:  7
Journal: Heat Treatment of Metals

Keyword:  离子渗氮层化合物层钢齿轮组织构成组织形态强韧性原奥氏体晶界氮化物单相齿轮精度;
Abstract: 本文研究了SCM435钢γ′单相离子渗氮层的组织构成和组织形态及其对性能的影响。研究结果表明,致密的γ′单相化合物层和扩散层中较宽的无脉网状组织区对强韧性做出了贡献。脉网状组织的实质是沿原奥氏体晶界分布的颗粒合金氮化物。用低氮势法和控制离子渗氮工艺因素,可在SCM435钢圆柱齿轮上获得强韧性良好的γ′单相离子渗氮层,且沿齿廓分布均匀,渗氮前后齿轮精度无变化。
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