拉伸试样类型的选择对中厚钢板拉伸性能的影响  

The influence of the selection of tensile specimen types on the tensile properties of medium steel plates

作　　者：王东柱 高小勇 WANG Dongzhu;GAO Xiaoyong(Manufacturing Department,Shougang Jingtang United Iron and Steel Co.,Ltd.,Tangshan 063000,China)

机构地区：[1]首钢京唐钢铁联合有限责任公司制造部,唐山063000

出　　处：《理化检验（物理分册）》2024年第12期45-47,共3页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：在室温环境下对厚度为90 mm的Q460C热轧钢板矩形和圆形拉伸试样进行对比试验。结果表明:与矩形拉伸试样相比,圆形拉伸试样屈服强度和抗拉强度的测量值相对更低,这是因为钢板厚度方向的显微组织存在差异。The comparative tests of rectangular and circular tensile specimens of Q460C hot rolled steel plate with a thickness of 90 mm were carried out at room temperature.The results show that compared with the rectangular tensile specimen,the yield strength and tensile strength of the circular tensile specimen were relatively lower,which was due to the difference of the microstructure in the thickness direction of the steel plate.

关 键 词：拉伸试验 圆形试样 矩形试样 中厚钢板 力学性能 

分 类 号：TG115.5[金属学及工艺—物理冶金] TB31[金属学及工艺—金属学]