金属间化合物Ni_3Al激光表面快凝处理温度场的研究  

Study on Temperature Field Induced by YAG Laser Rapid Solidification Treatment of Intermetallics Ni_3Al

作　　者：汤彬[1] 郭元强[1] 俞少罗[1] 

机构地区：[1]上海工程技术大学

出　　处：《金属热处理学报》1996年第1期33-38,共6页

基　　金：上海市高等教育局自然科学基金

摘　　要：应用经典热传导理论，借助计算机用解析方法计算ＹＡＧ激光对金属间化合物Ｎｉ３Ａｌ熔凝处理时非稳态温度场变化规律。分析了激光加热工艺参数以及附加铜热吸收基底对温度场的影响。根据温度场的变化规律定性地分析了被处理材料显微组织和性能的变化，并且与实验结果进行了比较。In this paper, transient temperature field induced by YAG laser on surface of intermetallics Ni3Al is studied using analytic method underguide of classical heat conduction theory , aided by computer. Results denote that facters of YAG laser such as output energy and pulsed time together with adding of copper heat absorption substract play a great role. The variation of microstructure and mechanical property of Ni3Al material after pressed by YAG laser is analyzed and discussed while being compared with experimental data.

关 键 词：金属间化合物 激光熔凝处理 温度场 镍铝合金 

分 类 号：TG146.15[一般工业技术—材料科学与工程] TG156.99[金属学及工艺—金属材料]