60Si2Mn的热处理性能分析研究.doc

摘 要通过对60Si2Mn进行均匀化退火、奥氏体化、正火和回火处理，研究这种材料在高温退火和回火处理下得到的组织，以及对这种材料的力学性能进行测试。通过光学显微镜(OM),硬度计对60Si2Mn组织和性能进行分析。结果表明，珠光体的片层间距随转变温度的降低而减小，不受奥氏体化温度和奥氏体晶粒大小的影响。珠光体是一种硬而脆的组织。60Si2Mn在均匀化退火后可以得到均匀的组织。在相同的时间下等温，温度越高60Si2Mn析出的碳化物等组织越多。关键词：退火，正火，组织，性能ABSTRACTBy 60Si2Mn the homogenization, austenitizing, normalizing and tempering treatment, study the material at high temperature annealing and tempering with the next to get the organization, as well as the mechanical properties of this material for testing. By optical microscopy (OM), hardness and properties of 60Si2Mn analysis. The results show that the pearlite lamellar spacing with the transition temperature decreases, from austenitizing temperature and austenite grain size. Pearlite is a hard and brittle tissue. 60Si2Mn after the homogenization of the tissue can be uniform. At the same time the lower temperature, the higher the temperature carbide precipitation and other organizations 60Si2Mn more.Keywords: Annealing, Normalizing, Organization, Performance目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc295480839 摘 要 PAGEREF _Toc295480839 \h I HYPERLINK \l _Toc295480840 ABSTRACT PAGEREF _Toc295480840 \h II HYPERLINK \l _Toc295480841 第一章 文献综述 PAGEREF _Toc295480841 \h 1 HYPERLINK \l _Toc295480842 1.1 引言 PAGEREF _Toc295480842 \h 1 HYPERLINK \l _Toc295480843 1.2 60Si2Mn概述 PAGEREF _Toc295480843 \h 2 HYPERLINK \l _Toc295480844 1.3 等温处理 PAGEREF _Toc295480844 \h 6 HYPERLINK \l _Toc295480845 1.4 力学性能 PAGEREF _Toc295480845 \h 8 HYPERLINK \l _Toc295480846 第二章 实验方案及过程 PAGEREF _Toc295480846 \h 15 HYPERLINK \l _Toc295480847 2.1 实验方案 PAGEREF _Toc295480847 \h 15 HYPERLINK \l _Toc295480848 2.2 实验过程 PAGEREF _Toc295480848 \h 15 HYPERLINK \l _Toc295480849 2.2.1 试样的制备 PAGEREF _Toc295480849 \h 15 HYPERLINK \l _Toc295480850 2.2.2 均匀化退火 PAGEREF _Toc295480850 \h 15 HYPERLINK \l _Toc295480851 2.2.3 奥氏体化 PAGEREF _Toc295480851 \h 16 HYPERLINK \l _Toc295480852 2.2.4 正火 PAGEREF _Toc295480852 \h 16 HYPERLINK \l _Toc295480853 2.2.5 等温淬火 PAGEREF _