Low-power laser hardening of steels

被引:30
作者
Ganeev, RA [1 ]
机构
[1] Uzbek Acad Sci, NPO Akadempribor, Tashkent 700143, Uzbekistan
关键词
laser hardening; low-power CO2 laser; hardness; phase transformation;
D O I
10.1016/S0924-0136(01)01267-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The results of a study of surface hardening of steels by low-power (100 W) CO2 laser radiation are presented. Three-fold increase of surface microhardness of low- and medium-carbon steels was obtained. The depth of hardening zone was 170 pin. A comparative analysis of laser hardening with the use of pulse (t = 6 ns, lambda = 532 nm) radiation was made. The study shows that low-power CO, lasers can be applied for effective restructuring of a steel surface and growth of its microhardness. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码:414 / 419
页数:6
相关论文
共 6 条
[1]   THE TRANSFORMATION HARDENING OF STEEL SURFACES BY LASER-BEAMS .1. HYPO-EUTECTOID STEELS [J].
ASHBY, MF ;
EASTERLING, KE .
ACTA METALLURGICA, 1984, 32 (11) :1935-&
[2]   Laser-ultrasonic hardening of the surface of steel [J].
Gureev, DM .
QUANTUM ELECTRONICS, 1998, 28 (03) :274-277
[3]  
HAWKES IC, 1973, METALLURGIA, V50, P78
[4]   Diffusive redistribution of carbon in carbon steels under the action of high-energy sources [J].
Safonov, AN ;
Dubrovina, EA .
QUANTUM ELECTRONICS, 1998, 28 (08) :681-684
[5]  
Steen W.M., 1991, LASER MAT PROCESSING
[6]   LASER TREATMENT OF GREY IRON [J].
TRAFFORD, DNH ;
BELL, T ;
MEGAW, JHPC ;
BRANSDEN, AS .
METALS TECHNOLOGY, 1983, 10 (FEB) :69-77