C-Mn结构钢拉伸变形过程中空穴形核的研究——结构钢韧性断裂机理研究之一

金属学报

1984, Vol. 20

Issue (1): 17-142

论文

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C-Mn结构钢拉伸变形过程中空穴形核的研究——结构钢韧性断裂机理研究之一

史耀武;J.T.Barnby

西安交通大学;英国阿斯顿大学

VOID NUCLEATION IN TENSILE DEFORMATION PROCESSES OF C-Mn STRUCTURAL STEEL——Ductile Fracture Mechanisms in a Structural Steel (Ⅰ)

SHI Yaowu (Xi'an Jiaotong University); BARNBY J.T. (University of Aston; Birmingham; U.K.) (Manuscript received 21 March; 1983)

引用本文:

史耀武;J.T.Barnby. C-Mn结构钢拉伸变形过程中空穴形核的研究——结构钢韧性断裂机理研究之一[J]. 金属学报, 1984, 20(1): 17-142.
, . VOID NUCLEATION IN TENSILE DEFORMATION PROCESSES OF C-Mn STRUCTURAL STEEL——Ductile Fracture Mechanisms in a Structural Steel (Ⅰ)[J]. Acta Metall Sin, 1984, 20(1): 17-142.

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摘要:

本文比较了各种可能揭示钢中空穴的方法,采用一系列具有增量塑性应变的光滑拉伸试棒调查C-Mn结构钢空穴的形核。并根据本研究提出的分析程序,确定了空穴的临界形核应变以及在形核应变时的相对空穴体积。

Abstract：

Various methods which might be used to reveal the voids in the steel were compared. Using a series of the interrupted smooth tensile specimens with an incremental plastic strain, the void nucleation was investigated in a C-Mn structural steel with lower sulphur content. Based on the analysis procedure proposed in this work, the critical nucleation strain and relative void volume at the critical nucleation strain were determined.

收稿日期: 1984-01-18

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