Gold-silver-palladium alloys for laser irradiation-adaptation for JIS-

高水平的抗拉强度和伸长率是制造卡扣所必需的。我们使用激光照射仅硬化通过激光照射部分硬化的金银钯合金的表面层，以产生高弹性和耐疲劳性。我们评估了激光辐照的银-钯-铜合金的机械特性，并获得了以下结果：在软化热处理后，在18重量%的Au-4 OAg-2 OPd-22 Cu合金中激光产生的表面改性，增加了硬度（比软化热处理高106%），弯曲强度比软化热处理提高15%，伸长率下降21%。在37 ° C下浸入0.100 Na 2S溶液中3天的18wt%Au-40 Ag-2 OPd-22 Cu合金中激光产生的表面改性的发光度（L*）为73.07。

High levels of tensile strength and elongation are required to make clasps. We used laser irradiation to harden only the surface layer of a Gold-Silver-Palladium alloy partially hardened by laser irradiation, to yield high elasticity and fatigue resistance. We evaluated laser-irradiated Silver-palladium-copper alloys for laser irradiation, in terms of the mechanical characteristics, and obtained the following results.The laser-produced surface modification in an 18 wt%Au-4OAg-2OPd-22Cu alloy after softening heat treatment, increased hardness (1O6% higher than by softening heat treatment), and bending strength (15% higher than by softening heat treatment) and decreased elongation (21%-Iower than by softening heat treatment). The luminosity (L*) of the laser-produced surface modification in a l8wt%Au-4OAg-2OPd-22Cu alloy immersed in 0.100 Na2S solution at 37 * for 3 days was 73.07.