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对断裂过程已经进行了广泛的研究,由于新的断裂参数(应力S_D和应变e_D)的引入,扩大了机械性能的信息提示范围,可以普遍采用的单一轴向拉伸试验来评价经不同热处理工艺处理后合金的断裂抗力。本文介绍了退火态碳钢(15,30,35,45和60钢)和锰钢(锰含量2％～5.4％)的断裂曲线(S=f(e~(1/2)》。试验研究了碳锰含量对机械性能中断裂性能及其各向异性的影响。对后者,作出了断裂应力和应变变化时的各向异性曲线图。比较了碳和锰对钢的断裂性能的影响。试验结果是与标准性能比较给出的。
The fracture process has been extensively studied. Due to the introduction of new fracture parameters (stress S_D and strain e_D), the information hint range of mechanical properties has been broadened and a single axial tensile test commonly used can be used to evaluate the effect of different heat treatment processes The fracture resistance of the treated alloy. In this paper, the fracture curves (S = f (e ~ (1/2)) of annealed carbon steel (15, 30, 35, 45 and 60 steel) and manganese steel (manganese content of 2% ~ 5.4% The effect of carbon and manganese content on the fracture properties and anisotropy of the mechanical properties was investigated, and the latter was given an anisotropy curve when the fracture stress and strain were changed.The effect of carbon and manganese on the fracture properties of the steel was compared. The test results are given in comparison with the standard performance.