旋锻对Cu-0.51Cr-0.06Zr合金组织性能的影响  

Effect of rotary forging on microstructure and properties of Cu-0.51Cr-0.06Zr alloy

作　　者：黄伟[1,2] 龚留奎 黄实哈 杭平平 邓立勋 张延松 史戈宁[5] HUANG Wei;GONG Liukui;HUANG Shiha;HANG Pingping;DENG Lixun;ZHANG Yansong;SHI Gening(Ningbo Branch of Chinese Academy of Ordnance Science,Ningbo 315103,China;School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Ningbo Surface Engineering Research Institute Co.Ltd.,Ningbo 315103,China;Hangzhou Military Representative Office of Military Representative Bureau of Army Equipment Department in Nanjing,Hangzhou 310015,China;Yantai Wanlong Vacuum Metallurgy Co.Ltd.,Yantai 264006,China)

机构地区：[1]中国兵器科学研究院宁波分院,浙江宁波315103 [2]华中科技大学电气与电子工程学院,湖北武汉430074 [3]宁波表面工程研究院有限公司,浙江宁波315103 [4]陆军装备部驻南京地区军事代表局驻杭州地区军事代表室,浙江杭州310015 [5]烟台万隆真空冶金股份有限公司,山东烟台264006

出　　处：《兵器材料科学与工程》2022年第1期83-88,共6页Ordnance Material Science and Engineering

基　　金：宁波市科技创新2025重大专项(2018B10030)。

摘　　要：为研究旋锻及热处理对Cu-0.51Cr-0.06Zr合金显微组织及性能影响规律,用SEM、EDS、TEM、HRTEM等进行检测。结果表明:铸态Cu-0.51Cr-0.06Zr合金组织的树枝状富Cr相在热锻后球化为颗粒状或棒状,棒状富Cr相尺寸约为5μm,颗粒状富Cr相尺寸在1μm以下,随旋锻变形方向富Cr相分布呈一定方向性;时效中,纳米级析出相为体心立方结构,为4~7 nm;热锻合金经过旋锻、峰时效和最终旋锻后,抗拉强度和电导率分别为625 MPa、82.7%IACS。The microstructure evolution and properties of Cu-0.51 Cr-0.06 Zr alloy under processes of rotary forging and heat treatment were investigated by means of SEM,EDS,TEM,HRTEM. The results show that the Cr-rich dendritic phases in the microstructure of as-cast Cu-0.51 Cr-0.66 Zr alloy is spheroidized into particles or rods after hot forging,the long rod-shaped Crrich phase with a larger size is about 5 μm,the particle-shaped and short rod-shaped Cr-rich phases with a smaller size are less than 1 μm,and the distribution of these Cr-rich phases shows a certain directionality with the direction of rotary forging deformation. In addition,during aging process,the precipitated nano-scale phases is identified to be body centered cubic structure and their sizes are 4-7 nm. The tensile strength and conductivity of the as-cast alloy after rotary forging,aging and final rotary forging are 625 MPa,82.7%IACS,repectively.

关 键 词：Cu-0.51Cr-0.06Zr 旋锻 抗拉强度 电导率 富Cr相 

分 类 号：TG146.1[一般工业技术—材料科学与工程]