The study of behavior of graphite phase in the laser hardening layer of gray iron;
珠光体灰口铸铁激光硬化层中石墨相行为研究
After proper conditioning and laser parameters were selected,laser hardening was performed on LY12.
此外，还系统地研究了工艺参数对硬化区尺寸的影响，工艺参数与硬化区显微硬度的关系，激光硬化区的显微组织变化及化学成分的能谱分析等。
The effects of laser hardening on the structure and wearability of a normalized and an austempered ductile iron were investigated.
结果显示对于等温淬火球铁,激光硬化层中马氏体片的尺寸与基体奥氏体—贝氏体中的铁索体板条尺寸相近。