粉末冶金制备添加20%铜的316L不锈钢/铜复合材料工艺研究  

FABRICATION OF 316L STAINLESS STEEL/20% COPPER COMPOSITE BY POWDER METALLURGY

作　　者：孟飞[1] 果世驹[1] 杨霞[1] 张恒[1] 郭林[1] 

机构地区：[1]北京科技大学材料科学与工程学院粉末冶金研究所,北京100083

出　　处：《粉末冶金工业》2006年第4期1-4,共4页Powder Metallurgy Industry

摘　　要：本文采用粉末冶金工艺合成制备出316L不锈钢/铜复合材料,其中铜占20%(质量分数,下同)。测定了材料的密度、硬度和冷轧轧下量,分析了材料的显微组织和微区成分。实验结果表明,添加20%铜的不锈钢经1 100℃烧结后,密度达到7.53 g/cm3,相对密度为92.4%,硬度为75.12 HRB,冷轧轧下量达69%,316L不锈钢粉末颗粒外形球形化,铜元素在不锈钢基体有少量扩散。本文还对游离铜提高材料冷轧轧下量的原因进行了简单的分析。The fabrication of 316L stainless steel/20wt% copper composite by powder metallurgy was investigated in this paper. The mechanical properties of the composite were measured and the microstructure was analyzed. The results showed that mechanical properties of the composite after sintering at 1100 ℃ are： density 7.53 g/cm^3, relative density 92.4%, hardness 75.12 HRB, and the composite can be cold rolled with a reduction of 69%. The 316L particles are globular and copper is diffused into 316L a little. The plasticity enhancement mechanism of composite was discussed.

关 键 词：粉末冶金 金属基复合材料 显微组织 轧制 

分 类 号：TF124[冶金工程—粉末冶金]