LASER HEAT TREATING RESEARCH OF THREE KINDS OF HIGH SPEED STEEL  

作　　者：Liu, W.N.  Fang, M.N.  Xing, J.  Liu, Y.W. 

机构地区：[1] Changchun Inst of Optics and Fine, Mechanics, Changchun, China

出　　处：《Acta Metallurgica Sinica(English Letters)》1999年第5期757-760,共4页金属学报（英文版）

摘　　要：After laser quenching and tempering of three kinds of annealed tool high-speed steel(W18Cr-4V, W9Mo3Cr4V1, W6Mo5Cr4V2) test samples, the microhardness measurer was used to test the samples and some problems, such as the hardness and depth of hardening-quenching layer were analyzed. Furthermore, after laser quenching and tempering of the quenched and three-time tempered high-speed steel (W18Cr4V) and its hardness analyzing, different results of laser-quenching samples were obtained under different initial heat-treating.After laser quenching and tempering of three kinds of annealed tool high-speed steel(W18Cr-4V, W9Mo3Cr4V1, W6Mo5Cr4V2) test samples, the microhardness measurer was used to test the samples and some problems, such as the hardness and depth of hardening-quenching layer were analyzed. Furthermore, after laser quenching and tempering of the quenched and three-time tempered high-speed steel (W18Cr4V) and its hardness analyzing, different results of laser-quenching samples were obtained under different initial heat-treating.

关 键 词：HARDENING Heat treatment Laser beam effects MICROHARDNESS Phase transitions QUENCHING 

分 类 号：TG161[金属学及工艺—热处理]