陈伦,杨晓亮,陈龙庆,唐毅,宋阳一鹏,瞿晓勤,唐军

• 1:四川大学物理学院
• 2:四川大学原子核科学技术研究所教育部辐射物理与技术重点实验室
• 3:四川睿钦企业管理有限公司

摘要(Abstract)：

采用放电等离子体烧结(SPS)技术,在1050℃下成功制备出了5层W/Fe功能梯度材料,并通过钎焊与纯W结合。采用光学显微镜、扫描电镜和显微硬度计等研究了W/Fe功能梯度材料的表面形貌、断口形貌及硬度。结果表明:所制备的W/Fe功能梯度材料的成分和显微硬度符合梯度变化趋势;纯W层与钎料层间界面平整无孔洞及裂纹,只有少量W扩散至钎料层,而80W20Fe层与钎料层间的界面出现较多宏观孔洞,并出现相互扩散行为。随着W含量的增加,W/Fe功能梯度材料的断裂行为从韧性断裂(316L钢层)到部分韧性断裂(W含量20%),再到完全脆性断裂(纯W层)。

关键词(KeyWords)： 功能梯度材料;放电等离子体烧结(SPS);钎焊

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(11775149,11475118)

作者(Author): 陈伦,杨晓亮,陈龙庆,唐毅,宋阳一鹏,瞿晓勤,唐军

DOI: 10.13289/j.issn.1009-6264.2019-0325

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