Mechanical properties and fracture upon static tension of the high-carbon steel with different types of pearlite structure
Mechanical properties and fracture upon static tension of the high-carbon steel with different types of pearlite structure
复制标题
不同类型珠光体组织高碳钢的力学性能及静拉断裂
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
L. Egorova
中科院分区：
文献类型：
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作者：
A. Makarov;R. Savrai;V. Schastlivtsev;T. I. Tabatchikova;L. Egorova
在拉伸试验中研究了在650℃（粗片层珠光体）和500℃（细片层珠光体）等温分解形成的珠光体结构的U10钢（1.03 wt % C）的硬度和机械性能，以及随后在650℃温度下对细片层珠光体进行10-300 min的退火。用扫描电镜观察了不同珠光体结构钢的断口。分析了该珠光体组织钢在渗碳体分散性、形貌、缺陷结构、固溶强化程度和铁素体组成晶格微变形程度等方面的差异与断口组织特征和断口特征之间的相互关系。
The hardness and mechanical properties of the U10 steel (1.03 wt % C) with pearlite structures that were formed by isothermal decomposition at temperatures of 650°C (coarse-lamellar pearlite) and 500°C (fine-lamellar pearlite) as well as upon subsequent annealing of fine-lamellar pearlite at a temperature of 650°C for 10–300 min have been studied upon tensile tests. Fractures of the steel with different types of pearlite structure have been examined using scanning electron microscopy. The interrelation between the mechanical properties and the structural features and character of fracture has been analyzed for this steel with pearlite structures differing in the dispersity, morphology, and defect structure of cementite, and in the levels of solid-solution strengthening and microdistortions of the ferrite-constituent lattice.