应用激光, 2002, 22 (5): 465, 网络出版: 2006-05-10
Ni-Al-Cu粉末合金激光点火反应烧结的致密化研究
Densification of laser ignited reaction sintering of Ni-Al-Cu powder alloy
摘要
主要研究了激光点火反应烧结Ni-Al-Cu系粉末材料的致密化机理.随体系中Cu含量的增多,大颗粒的Ni-Al-Cu粉末压坯在激光快速点火和烧结下实现了无压致密,最终产物并没有发生显著地改变.液相和被瓦解的固相小晶粒或颗粒的共同填充是导致最终致密的主要机理.
Abstract
The mechanisms for densification during laser ignited reaction sintering of Ni-Al-Cu powder materials were studied. With the increase of Cu content, pressureless densification of Ni-Al-Cu specimens made of big particles was realized under laser rapid ignition and sintering without the significant change of the final products. The filling of the mixture of liquid and disintegrated small grains or particles was regarded as the dominant mechanism for the final densification.
郭作兴, 关振中, 连建设, 胡建东, 沈平, 李雨田. Ni-Al-Cu粉末合金激光点火反应烧结的致密化研究[J]. 应用激光, 2002, 22(5): 465. 郭作兴, 关振中, 连建设, 胡建东, 沈平, 李雨田. Densification of laser ignited reaction sintering of Ni-Al-Cu powder alloy[J]. APPLIED LASER, 2002, 22(5): 465.
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