热挤压对SiC_W-Cu复合材料塑性的影响  

Effect of Hot Extrusion on Plasticity of Si CW-Cu Composites

作　　者：刘德波[1] 张萍[2] 

机构地区：[1]黄河科技学院工学院,河南郑州450063 [2]新乡职业技术学院机电系,河南新乡453000

出　　处：《铸造技术》2016年第4期765-767,共3页Foundry Technology

摘　　要：研究热挤压对Si CW-Cu复合材料塑性的影响,利用SEM表征手段对拉伸断面进行观察和研究。结果表明:Si CW-Cu复合材料的塑性在经过热挤压处理之后有了明显的上升。塑性的提升是由于在热挤压过程中Si CW-Cu复合材料因为受到挤压而产生变形,在微观层面上,折断的晶须按照受压方向进行排列共同影响所造成。Influence of hot extrusion on the plasticity of SiC^-Cu composite material was studied. SEM characterization was used to observe and study tensile fracture surfaces. The results show that the plasticity of the SiCx-Cu composites was improved after hot extrusion. The mechanisms of the improvement can be ascribed to the increase of matrix plasticity as well as the directional alignment and breakage of crystal whiskers in the composite.

关 键 词：Si CW-Cu 复合材料 塑性 热挤压 SEM 

分 类 号：TB33[一般工业技术—材料科学与工程]