SPS工艺参数对Cu-Cr-Nb合金性能和组织的影响  

Effect of SPS Process Parameters on Properties and Microstructure of Cu-Cr-Nb Alloy

作　　者：吴政朋 陈小红[1] 何代华[1] WU Zheng-peng;CHEN Xiao-hong;HE Dai-hua(School of Materials Science and Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学材料科学与工程学院,上海200093

出　　处：《广州化工》2021年第17期54-57,86,共5页GuangZhou Chemical Industry

基　　金：国家自然科学基金资助项目(No.51201107)。

摘　　要：利用放电等离子烧结(SPS)制备了Cu-8Cr-4Nb合金,研究了保温时间和升温速率对Cu-8Cr-4Nb致密度、电导率、力学性能和组织结构的影响。结果表明当:当烧结压力为30 MPa,烧结温度分别为800℃、900℃、950℃时,在保温时间为10 min、升温速率为100℃/min下,合金的相对致密度分别达到98.98%、99.09%、99.02%,接近理论致密度。合金电导率、硬度、抗拉强度也优于其他工艺参数。Cu-8Cr-4Nb alloy was prepared by spark plasma sintering(SPS).The effects of holding time and heating rate on the density,electrical conductivity,mechanical properties and microstructure of Cu-8Cr-4Nb alloy were studied.The results showed that when the sintering pressure was 30 MPa,the sintering temperature was 800℃,900℃,950℃,the holding time was 10 min,the heating rate was 100℃/min,the relative density of the alloy reached 98.98%,99.09%,99.02%,respectively,which was close to the theoretical density.The electrical conductivity,hardness and tensile strength of the alloy were also better than other process parameters.

关 键 词：放电等离子烧结 保温时间 升温速率 理论致密度 

分 类 号：TG146.1[一般工业技术—材料科学与工程]