金属材料的强度与应力-应变关系的球压入测试方法1)

张志杰, 蔡力勋, 陈辉, 包陈, 刘晓坤

SPHERICAL INDENTATION METHOD TO DETERMINE STRESS-STRAIN RELATIONS AND TENSILE STRENGTH OF METALLIC MATERIALS1)

Zhang Zhijie,Cai Lixun,Chen Hui,Bao Chen,Liu Xiaokun

表2 不同材料弹性模量的预测

Table 2 Predictions of Young’s modulus for different materials

Materials Young’s modulus E/GPa Error/ tensile results spherical indentation % 5052-H24 68.0 69.3 1.910 5083-H116 70.3 69.8 0.710 6061-T6511 71.1 71.3 0.280 7075-T6511 73.4 71.7 2.320 P92 210 209 0.142 16Mn 195 194 0.670 16MnR 209 100 4.360 30Cr 197 199 1.320 T91 195 202 3.540 SA302B 215 216 0.331 A508-III 211 208 1.470