王玉辉,肖福仁,廖波,李玉海

• 1:亚稳材料制备技术与科学国家重点实验室
• 2:亚稳材料制备技术与科学国家重点实验室
• 3:亚稳材料制备技术与科学国家重点实验室
• 4:沈阳理工大学材料科学与工程学院 河北秦皇岛066004

摘要(Abstract)：

利用扫描电镜(SEM)、台阶仪、X射线衍射仪(XRD)、透射电镜(TEM)、显微硬度仪对W6Mo5Cr4V2钢经强流脉冲离子束(HIPIB)辐照前后试样的表面形貌、粗糙度、表层的组织结构及硬度进行了分析,探讨了"熔坑"和硬度"多峰"态形成的原因。结果表明,试样表面粗糙度随辐照次数的增加有所减小;辐照过程使该钢体心立方的马氏体α′-Fe向面心立方的奥氏体-γFe转变,碳化物溶解,马氏体溶碳量增大且晶粒细化,点阵畸变度增大,使W6Mo5Cr4V2钢表面硬度有较大的提高。

关键词(KeyWords)： 强流脉冲离子束(HIPIB);W6Mo5Cr4V2钢;显微硬度;熔坑

Abstract:

Keywords:

基金项目(Foundation): 河北省科技攻关项目(05212203D);; 河北省博士基金项目(05547010D-1)

作者(Author): 王玉辉,肖福仁,廖波,李玉海

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