高速重载机车用50crva弹簧钢淬火—等温工艺探索-probe into quenching - isothermal process of 50crva spring steel for high-speed and heavy-duty locomotives.docx
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高速重载机车用50crva弹簧钢淬火—等温工艺探索-probe into quenching - isothermal process of 50crva spring steel for high-speed and heavy-duty locomotives
贵州大学工学硕士毕业论文目录摘要.......................................................................................................................................... IAbstract................................................................................................................................... II第 1 章绪言..........................................................................................................................11.1 课题研究背景..........................................................................................................11.2 高速重载机车用弹簧的性能要求..........................................................................21.3合金元素对弹簧钢性能的影响........................................................................... 21.4 高速重载机车弹簧现状..........................................................................................41.4.1 材料.............................................................................................................. 41.4.2 工艺............................................................................................................. 61.4.3 力学性能...................................................................................................... 71.5 发展趋势..................................................................................................................71.6 提高机车弹簧的措施..............................................................................................81.6.1 细化晶粒及亚晶粒...............................................................................................81.6.2 改善组织................................................................................................... 101.6.3 表面强化................................................................................................... 101.6.4 非金属夹杂物改性....................................................................................111.7 QP 工艺介绍和淬火-等温工艺的提出 121.7.1 QP 工艺介绍 121.7.2 等温淬火工艺................................................................................
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