45鋼表面滲硼的工藝研究論文.doc

-1-45鋼表面滲硼工藝的實驗研究-2-目錄1概述.11.1引言.11.2金屬熱處理.11.2.1金屬熱處理的定義.11.2.2金屬熱處理的工藝.11.2.3金屬熱處理的分類.21.3滲硼.21.3.1滲硼定義.21.3.2滲硼的工藝.31.3.3滲硼層的組織性能.41.3.4滲硼的應(yīng)用.41.3.5滲硼工藝的材料選擇.51.3.6滲硼后的熱處理.61.3.7滲硼技術(shù)的前景展望.91.4課題研究的內(nèi)容.91.5選題意義.9245鋼固體滲硼的研究.102.1固體滲硼.102.1.1固體滲硼的使用方法注意事項.102.1.2固體滲硼后的熱處理工藝.102.2實驗方案.102.3實驗過程.122.3.1實驗材料的選用.122.3.2實驗滲劑材料的選取以及原理.142.3.3試驗的工藝參數(shù).152.3.4滲硼前準(zhǔn)備.15-3-2.3.5進行滲硼.152.3.6進行熱處理.162.4顯微硬度的測量.172.5制作金相試樣.182.6金相觀察.203實驗結(jié)果分析.213.1表面硬度分析.213.2滲層組織形貌分析.223.3過渡層組織分析.233.4滲硼層厚度分析.243.5保溫時間的影響.243.6溫度的影響.25結(jié)論.25參考文獻.26致謝.27ProcessingResearchforSolidBoronizationofthe45steelAbstractThispaperisabouttheresearchonthesurfaceboronidingprocessofthe45steel.Thepresentpaperisforthepurposeofthroughto45steelsolidboronizationmethod,strengthens45steelthecomprehensivemechanicsperformanceandtheimprovementboronizationlevelorganizationandtheperformance,thesolidboronizationusestheboronizingmediumandtheworkpieceheatsuptocertainsoakingtimerealizestheworkpiecesurfaceboronizationtechnologicalprocess.Usingthesolidboronizationcut-and-trymethoddeterminedtheboronizationcrafttheparameter(boronizationtemperature,boronizationtime,rareearthjoinquantityandchromiumjoinquantity)tothe-4-畢業(yè)設(shè)計說明書（論文）外文摘要boronizationlevelthicknessinfluence,thusdeterminesthereasonableboronizationcraftroute.Withinstrumentsandtheequipmentandsoonlightmicroscope,metallographymicroscope,microsclerometerobserveinfiltratetheleveltheorganizationandthetestinfiltratetheleveltheperformance.Drawsthefollowingconclusionthroughtheexperiment:Thinglinerule,reasonableboronizationcraft:Temperature:880yi920；Time:4-6hours.After45steelboronizationprocessingtheskinhardnessenhances,theabrasionresistancecanimprove,theoxidationresistance