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离子束辅助沉积技术(IBAD)在冷作模具表面改性上的应用

IBAD application to surface modification of cold-working die steel

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【作者】 丁晓非曾葆青林艾光陈宝清

【Author】 DING Xiao-fei1,2,ZENG Bao-qing3,LIN Ai-guang2,CHEN Bao-qing1(1.School of Materials Engineering,Dalian University of Technology,Dalian 116023,China;2.Department of Mechanical Engineering,Dalian Ocean University,Dalian 116024,China,3.School of Information Technology,Beijing Normal University,Zhuhai 519085,China)

【机构】 大连理工大学材料科学与工程学院大连海洋大学机械工程学院北师大珠海分校信息技术学院

【摘要】 IBAD是离子注入及沉积技术发展起来的材料表面改性方面的综合技术,工模具经IBAD处理后现场使用寿命可提高2~4倍。材料经IBAD处理后改性层的硬度明显提高、摩擦系数减小、耐磨性增强;改性层是由(Ti2N+TiN)、(α-Fe+TiN)、(α-Fe(N)+Cr7C3)三层次组成,与基体间附着性好、晶粒细化呈纳米相。

【Abstract】 IBAD as a surface modification technique for several materials was developed on the basis of ion implantation and deposition.The service life of the Cr12MoV cold die steel treated by IBAD can be prolonged 2~4 times longer than untreated.As a result,the hardness of the modified layers of the IBAD-treated steel is obviously improved with low friction coefficient and high wearing resistance.The modified layers include(Ti2N +TiN),(а-Fe+TiN) and(а-Fe(N)+Cr7C3) ones from surface to inside,and all of them are bonded to the substrate strongly.And the surface layer presents nano-size grain refining.

  • 【分类号】TG174.44
  • 【被引频次】2
  • 【下载频次】222
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