45钢表面渗硼的工艺研究论文.doc

-1-45钢表面渗硼工艺的实验研究-2-目录1概述.11.1引言.11.2金属热处理.11.2.1金属热处理的定义.11.2.2金属热处理的工艺.11.2.3金属热处理的分类.21.3渗硼.21.3.1渗硼定义.21.3.2渗硼的工艺.31.3.3渗硼层的组织性能.41.3.4渗硼的应用.41.3.5渗硼工艺的材料选择.51.3.6渗硼后的热处理.61.3.7渗硼技术的前景展望.91.4课题研究的内容.91.5选题意义.9245钢固体渗硼的研究.102.1固体渗硼.102.1.1固体渗硼的使用方法注意事项.102.1.2固体渗硼后的热处理工艺.102.2实验方案.102.3实验过程.122.3.1实验材料的选用.122.3.2实验渗剂材料的选取以及原理.142.3.3试验的工艺参数.152.3.4渗硼前准备.15-3-2.3.5进行渗硼.152.3.6进行热处理.162.4显微硬度的测量.172.5制作金相试样.182.6金相观察.203实验结果分析.213.1表面硬度分析.213.2渗层组织形貌分析.223.3过渡层组织分析.233.4渗硼层厚度分析.243.5保温时间的影响.243.6温度的影响.25结论.25参考文献.26致谢.27ProcessingResearchforSolidBoronizationofthe45steelAbstractThispaperisabouttheresearchonthesurfaceboronidingprocessofthe45steel.Thepresentpaperisforthepurposeofthroughto45steelsolidboronizationmethod,strengthens45steelthecomprehensivemechanicsperformanceandtheimprovementboronizationlevelorganizationandtheperformance,thesolidboronizationusestheboronizingmediumandtheworkpieceheatsuptocertainsoakingtimerealizestheworkpiecesurfaceboronizationtechnologicalprocess.Usingthesolidboronizationcut-and-trymethoddeterminedtheboronizationcrafttheparameter(boronizationtemperature,boronizationtime,rareearthjoinquantityandchromiumjoinquantity)tothe-4-毕业设计说明书（论文）外文摘要boronizationlevelthicknessinfluence,thusdeterminesthereasonableboronizationcraftroute.Withinstrumentsandtheequipmentandsoonlightmicroscope,metallographymicroscope,microsclerometerobserveinfiltratetheleveltheorganizationandthetestinfiltratetheleveltheperformance.Drawsthefollowingconclusionthroughtheexperiment:Thinglinerule,reasonableboronizationcraft:Temperature:880yi920；Time:4-6hours.After45steelboronizationprocessingtheskinhardnessenhances,theabrasionresistancecanimprove,theoxidationresistance