(1. 同济大学 材料科学与工程学院，上海 200092；
2. 上海市金属功能材料重 点实验室，上海 200940；
3. 中南大学 材料科学与工程学院，长沙 410083)
摘 要: 使用HSC-31快速扫描红外热像仪，测量了含Al2O3表层的锌铝合金激光熔覆时的表面温度场，测得熔池中最高温度为1672℃，边缘温度为600～700℃，冷却速率为2×103～3×104℃/s以及熔池形状和等温曲线。
关键字: 温度场；锌铝合金；激光重熔；金属基陶瓷复合材料
laser re-melting area of Zn-Al based
ceramic thin film
（1. School of Materials Science and Engineering, Tongji University,
Shanghai 200092, China;
2. Shanghai Key Lab for Research, Developing and Applications of
Metallic Functional Materials, Shanghai, 200940, China;
3. College of Materials Science and Engineering, Central South University,
Changsha 410083, China）
Abstract:The measurements of the surface temperature fields of laser re-melting area in the Zn-Al based ceramic thin film, scanning heating by CO2 laser, were carried out with an HSC-31 fast-scanning infrared thermovision. The center and edge temperatures of melting pool, and the isotherms of different temperatures, and the shape of the melting pool were measured.
Key words: Zn-Al based alloys; metal matrix composites(M MC); laser re-melt; surface temperature fields
