激光熔凝对AerMet100钢显微组织及性能的影响  

Effect of Laser Melting on Microstructure and Performance of Aer Met100 Steel

作　　者：孟云龙 杨胶溪[1] 张健全[1] 王树志 陈虹[1] 王喜兵[1] 靳延鹏 张光睿[1] Meng Yunlong;Yang Jiaoxi;Zhang Jianquan;Wang Shuzhi;Chen Hong;Wang Xibing;Jin Yanpeng;Zhang Guangrui(Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China;Beijing Institute of Aeronautical Materiats, Aviation Industry Corporation of China, Ltd. , Beijing, 100095, China)

机构地区：[1]北京工业大学激光工程研究院,北京100124 [2]中国航空工业集团有限公司北京航空材料研究院,北京100095

出　　处：《激光与光电子学进展》2018年第2期352-359,共8页Laser & Optoelectronics Progress

摘　　要：利用半导体激光对AerMet100钢表面进行熔凝处理,研究了激光熔凝对材料结构、耐腐蚀性能以及耐磨损性能的影响。结果表明,通过激光熔凝可在AerMet100钢表面获得冶金质量良好、无裂纹的熔凝层;在750~1650 W功率范围内,随着激光功率的增大,熔凝层的厚度增大,熔凝层的硬度、耐腐蚀性及耐磨性均提高;当激光功率为1650 W时,其硬度、耐蚀性以及耐磨性达到最优;经过激光熔凝处理后,AerMet100钢未产生明显的物相改变,熔凝态中奥氏体含量减少,马氏体含量增加。The surface of AerMetl00 steel is treated by semiconductor laser melting, and the influences of laser melting on microstructure, corrosion resistance and wear resistance of materials are investigated. The results indicate that the melting layer with a good metallurgical quality and without cracks can be obtained by laser melting. In the power range of 750-1650 W, the thickness, hardness, corrosion resistance and wear resistance of the melting layer increase with the increase of laser power. When the laser power is 1650 W, the hardness, corrosion resistance and wear resistance of the melting layer are optimal. The phase of AerMetl00 steel does not change significantly after laser melting, but the austenite content decreases and the martensite content increases.

关 键 词：激光技术 激光熔凝 半导体激光 熔凝层 AERMET100钢 

分 类 号：TG142.33[一般工业技术—材料科学与工程]