Structural Changes in Steel 12GBA During Warm Rolling and Resistance to Brittle Fracture at Negative Temperatures

被引：0
作者：
L. S. Derevyagina
A. V. Korznikov
N. S. Surikova
A. I. Gordienko
机构：
[1] Branch of the Russian Academy of Sciences,Institute of Strength Physics and Materials Science of the Siberian
[2] Institute for Problems of Superplasticity of Metals of the Russian Academy of Sciences,undefined
来源：
Metal Science and Heat Treatment | 2018年 / 59卷
关键词：
warm rolling; low-carbon steel; cementite morphology; texture; strength; ductility; micromechanisms of fracture;
D O I：
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中图分类号：
学科分类号：
摘要：
The effect of warm rolling (at 750 – 550°C) on the structure and mechanical properties of low-carbon steel 12GBA is studied in tensile tests in a wide temperature range. Metallographic analysis with the use of optical, scanning electron and transmission electron microscopy is performed. The strength and ductility properties are determined in tensile tests at from 20°C to –196°C. The suggested mode of warm rolling is shown to affect favorably the structure and the combination of mechanical properties of steel 12GBA.
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页码：721 / 728
页数：7
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  • [1] Safarov IM(2014)Strength and impact toughness of low-carbon steel 12GBA with fibrous UFG structure Fiz. Met. Metalloved. 115 1-9
  • [2] Sergeev SN(2005)Mechanical properties of an ultrafine grained C – Mn steel processed by warm deformation and annealing Acta Mater. 53 4881-4892
  • [3] Galeev RM(2013)A study of the microstructure of surface layers of low-carbon steel after turning and ultrasonic finishing treatment Fiz. Met. Metalloved. 114 47-60
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