铁—铜基梯度复合材料粉末压坯的激光烧结

Laser Sintering of Fe-Cu Compacts with Gradient Composition

摘要: 用CO₂激光器对铁-铜基梯度复合粉末冶金压坯进行了激光辐射烧结。在对激光束加热温度场下梯度复合材料各层热膨胀分析的基础上,提出了热应力缓和层的成分设计,并对烧结后的组织和性能进行了研究。

Abstract: The Fe-Cu compacts with a gradient composition were sintered by a CO₂ laser.On the basis of the thermoexpansion analysis of various layers,compositions of stress-retaxed layer were designed.The microstructure and properties of these laser sintered materials were studied.