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| 纳米Y2O3-Co基合金激光熔覆复合涂层的分析 | |
| 引用本文： | 杨尚磊,张文红,李法兵,胡风光,陈爱中,吕运江.纳米Y2O3-Co基合金激光熔覆复合涂层的分析[J].焊接学报,2009,30(2):79-82. |
| 作者姓名： | 杨尚磊 张文红 李法兵 胡风光 陈爱中 吕运江 |
| 作者单位： | 1. 青岛科技大学,材料科学与工程学院,山东,青岛,266042;清华大学,机械工程系,北京,100084 2. 兖矿鲁南化肥厂,山东,滕州,277527 3. 青岛科技大学,材料科学与工程学院,山东,青岛,266042 |
| 基金项目： | 青岛科技大学科研基金 |
| 摘 要： | 采用纳米Y2O3和Co基合金粉末,并利用激光表面熔覆技术和堆焊技术在Ni基合金基体上制备了纳米Y2O3-Co基合金复合涂层.运用扫描电镜(SEM)等测试方法,研究了复合涂层的显微组织和显微硬度,通过磨损试验和腐蚀试验分析了激光熔覆涂层和单一堆焊层的耐磨性和耐蚀性.结果表明,激光熔覆层显微组织由熔合区、细等轴状枝晶区及粗枝晶区构成;激光熔覆层的显微硬度由堆焊层的512.8 HV提高到868.9HV;激光熔覆层的耐磨性提高了51.2倍,40 min磨损量由堆焊层的25.6 mg降低到激光熔覆层的0.5 mg;激光熔覆层在10%HCl、10% HNO3和10% NaOH中的耐腐蚀性均比堆焊表面有明显改善. |
| 关 键 词： | 纳米Y2O3 Co基合金 激光表面熔覆 |
| 收稿时间： | 2008/10/27 0:00:00 |
Investigation on laser cladded nano-Y2O3 and cobalt based composite coating |
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| YANG Shanglei,ZHANG Wenhong,LI Fabing,HU Fengguang,CHEN Aizhong and L&#; Yunjiang.Investigation on laser cladded nano-Y2O3 and cobalt based composite coating[J].Transactions of The China Welding Institution,2009,30(2):79-82. | |
| Authors: | YANG Shanglei ZHANG Wenhong LI Fabing HU Fengguang CHEN Aizhong and L&#; Yunjiang |
| Affiliation: | 1.College of Material Science and Engineering;Qingdao University of Science and Technology;Qingdao 266042;China;2.Department of Mechanical Engineering;Tsinghua University;Beijing 100084;3.Yankuang Lunan Chemical Fertilizer Plant;Tengzhou 277527;China |
| Abstract: | A composite coating was prepared on a Ni-based alloy substrate by using laser cladding as well as surfacing welding with nano-Y2O3 and Co-based alloy powders.The microstructure and microhardness of the nano-Y2O3/Co-based composite coating were investigated using various techniques,e.g.,scanning electron microscope(SEM).The wear resistance property and corrosion resistance property of the nano-Y2O3/Co-based laser cladding composite coating and pure surfacing welding were analysized by wear test and corrosion... |
| Keywords: | nano-Y2O3 Co-based alloy laser cladding |
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