Strengthening of Ceramic Coated Steel by Laser Quenching
In order to investigate the effectiveness of laser quenching for ceramic coated steels, 2 kinds of ceramic coated specimens of CrAIN and TiAIN were prepared, and the laser quenching experiments under various irradiation conditions were carried out. The influence of laser irradiation on the substrate hardness, film hardness and adhesive strength were investigated. Because of the high heat absorption of CrAIN and TiAIN films when compared to TiN, it was possible to quench the substrate effectively without any absorbent material for these specimens, although an absorbent was required for TiN coated specimen. The quenched area on the cross section of the substrate of CrAIN coated specimen was larger than that of TiAIN coated specimen. The difference of the quenched area could be explained by the difference of the heat absorption of these films. It was also possible to improve the adhesive strength of these films by laser irradiation. Although the film hardness decreased considerably by furnace quenching for ceramic coated steels, film hardness did not decrease by laser irradiation. It was concluded that the improvement of the adhesive strength and substrate hardness without the decrease of film hardness was achieved by laser quenching for CrAIN and TiAIN coated specimens.
Laser Heat treatment Thin film Hardness Adhesive strength
Hirotaka Tanabe Keiji Ogawa Takuya Saraie Mitsuhiro Gotoh Hideki Hagino Takuto Yamaguchi
Department of Mechanical Systems Engineering, School of Engineering,The University of Shiga Prefectu Fuji High Frequency Co.,LTD., 2-3-15, Oriono, Sakai-ku, Sakai, Osaka 590-0001, JAPAN Technology Research Institute of Osaka Pref., 2-7-1, Ayumino, Izumi, Osaka 594-1157, JAPAN
国际会议
2011 International Conference on Mechatronics and Applied Mechanics(2011年机电一体化与应用力学国际会议 ICMAM 2011)
香港
英文
175-180
2011-12-27（万方平台首次上网日期，不代表论文的发表时间）