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Abstract：
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In order to study the influence rules of cold deformation and carbon content on the strain hardening of low-nickel high nitrogen austenitic stainless steel, two kinds of carbon contents and six kinds of deformation amounts of low-nickel high nitrogen austenitic stainless steel were selected for tensile test. Based on the test results, the engineering stress-engineering strain curves were drawn. Combining with the test results and microstructure analysis, the conclusion shows that in the cold rolling process of high nitrogen austenitic stainless steel, the yield strength and tensile strength increase greatly with the increasing of deformation amount, but the elongation decreases. However, with the increasing of austenite grain elongation, the twin density in the microstructure increases with the increasing of deformation amount, the deformation twin is destroyed, and the twin appears strip-like due to slip splitting. Comparing the tensile results of cold rolled materials with different deformation amounts, the yield-strength ratio increases with the increasing of cold deformation amount. When the deformation amount is small (10%-20%), the work hardening value decreases with the increasing of carbon content, but when the deformation amount is larger, the test steel with high carbon content shows stronger work hardening with the increasing of strain.
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Funds：
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AuthorIntro：
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翟永臻（1967-），男，学士，教授级高工，E-mail：hbisjs@126.com；通讯作者：袁建路（1967-），男，学士，教授，E-mail：779533356@qq.com
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Reference：
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