张娈,董闯,王存山,王清

• 1:大连理工大学材料科学与工程学院
• 2:大连理工大学三束材料改性教育部重点实验室

摘要(Abstract)：

以Fe-B-Si三元合金为母合金,分别采用球磨破碎和甩带研磨两种方式制备了晶态和非晶态复合粉末并在45钢表面上进行了激光熔覆试验。通过对粉末物相结构和熔覆层质量、结构、组织及性能分析可知:在相同的熔覆能量条件下,非晶复合粉末的熔覆性能优于晶态粉末。采用非晶复合粉末所获得的熔覆层表面及内部没有气孔和裂纹,与基体形成了良好的冶金结合,其组织为细小均匀的树枝晶,各元素在熔覆层内分布较为均匀,受固溶强化、位错强化和细晶强化的影响,其硬度及耐磨性与基体相比都有较为明显的改善。

关键词(KeyWords)： 激光熔覆;非晶合金;FeBSi合金;耐磨性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51131002;11171044);; 高等学校科技创新工程重大项目培育基金项目(707015);; 沈鼓一大工重大科研发展基金

作者(Author): 张娈,董闯,王存山,王清

DOI: 10.13289/j.issn.1009-6264.2012.10.023

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