| H13钢表面TiC/Co基激光修复层的显微组织与力学性能 |
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| 引用本文： | PHAM THI HONG NGA,张晓伟,王传琦,刘洪喜,蒋业华.H13钢表面TiC/Co基激光修复层的显微组织与力学性能[J].焊接学报,2013(11):27-31. |
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| 作者姓名： | PHAM THI HONG NGA 张晓伟 王传琦 刘洪喜 蒋业华 |
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| 作者单位： | 昆明理工大学材料科学与工程学院, 昆明 650093;胡志明市技术师范大学机械工程学院, 越南 胡志明市 720035,昆明理工大学材料科学与工程学院, 昆明 650093,昆明理工大学材料科学与工程学院, 昆明 650093,昆明理工大学材料科学与工程学院, 昆明 650093,昆明理工大学材料科学与工程学院, 昆明 650093 |
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| 基金项目： | 国家自然科学基金资助顶目(51261013,51165015) |
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| 摘 要： | 采用激光熔覆技术在H13热作模具钢表面分别制备了Co50合金涂层和TiC/Co基复合涂层.借助XRD,SEM与显微硬度计对比分析了涂层与基材的结合状态、涂层物相组成、截面组织形貌和显微硬度分布.结果表明,Co50合金涂层和TiC/Co基复合涂层均与H13钢基材呈良好冶金结合特征.Co50合金涂层主要由初生γ-Co枝晶及其间的共晶组织组成,而TiC/Co基复合涂层主要由TiC颗粒、枝晶及细小的共晶组织组成,其组成相除含有TiC,TiCo3和Cr2Ni3外,还有Cr-Ni-Fe-C等相.涂层截面显微硬度分布表明,TiC/Co基复合涂层截面平均显微硬度明显高于Co50合金涂层,分别为5520 MPa和4990 MPa,分别是H13钢基材的2.7和2.4倍.
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| 关 键 词： | 激光熔覆 热作模具钢 钴基合金 复合涂层 |
| 收稿时间： | 2012/7/1 0:00:00 |
Microstructure and mechanical properties of TiC/Co composite coating by laser cladding on H13 steel surface |
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| PHAM THI HONG NGA,ZHANG Xiaowei,WANG Chuanqi,LIU Hongxi and JIANG Yehua.Microstructure and mechanical properties of TiC/Co composite coating by laser cladding on H13 steel surface[J].Transactions of The China Welding Institution,2013(11):27-31. |
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| Authors: | PHAM THI HONG NGA ZHANG Xiaowei WANG Chuanqi LIU Hongxi and JIANG Yehua |
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| Affiliation: | College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;College of Mechanical Engineering, University of Technical Education Ho Chi Minh City, Ho Chi Minh 720035, Vietnam,College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China,College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China,College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China and College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China |
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| Abstract: | |
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| Keywords: | laser cladding AISI H13 steel Co-based alloy composite coating |
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