试样类型和夹持方式对钨铜合金拉伸试验结果的影响  

The influence of sample types and clamping methods on the tensile test results of tungsten copper alloy

作　　者：顾英杰 李泰友 俞祥 张骥 陈黔芬 GU Yingjie;LI Taiyou;YU Xiang;ZHANG Ji;CHEN Qianfen(Tonglian Aerospace Industry Co.,Ltd.,Guiyang 550009,China;Guizhou Aerospace Fenghua Precision Equipment Co.,Ltd.,Guiyang 550009,China)

机构地区：[1]通联航天工业有限公司,贵阳550009 [2]贵州航天风华精密设备有限公司,贵阳550009

出　　处：《理化检验(物理分册)》2025年第4期13-18,共6页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：依据GB/T 228.1—2021,研究了不同试样类型和夹持方式对钨铜合金拉伸试验结果的影响。结果表明:当采用单台阶直径为10 mm的圆形试样进行拉伸试验时,试样的断裂部位全部为头部,且抗拉强度均不符合验收规范;采用单台阶2×M10-6h(两端均有外螺纹,螺纹直径为10 mm,公差等级为6 h)圆形头部带螺纹的试样时,有83.3%的试样断裂部位为头部,而其中仅有20%试样的抗拉强度符合验收规范;采用双台阶2×M10-6h圆形头部带螺纹的试样时,试样的断裂位置全部为平行段,且抗拉强度全部符合验收规范。According to GB/T 228.1—2021,the influence of different sample types and clamping methods on the tensile test results of tungsten copper alloy was studied.The results show that when using a circular specimen with a single step diameter of 10 mm for tensile testing,all specimens broke at the head and the tensile strength did not meet the acceptance criteria.When using a single step 2×M10-6h(both ends have external threads with a diameter of 10 mm and a tolerance level of 6 h)circular head threaded specimen,83.3%of the specimens fractured at the head,and only 20%of the specimens that tensile strength met the acceptance criteria.When using a double step 2×M10-6h circular head threaded specimen,the fracture position of the specimen was all in the parallel section,and the tensile strength met the acceptance specifications.

关 键 词：钨铜合金 试样类型 拉伸试验 夹持方式 断裂位置 抗拉强度 

分 类 号：TB31[一般工业技术—材料科学与工程] TG113.25[金属学及工艺—物理冶金]