PEI Hai-xiang， HOU Hua, LI Da-zhao, YAN Feng
（School of Materials Science and Engineering, North University of China, Taiyuan 030051, China）
Abstract： The study on hot deformation behavior of 316LN stainless steel at low-rate strain is very seldom at present. By sampling from industrial 316LN stainless steel and carrying out a compression heat deformation test by means of a Gleeble-3800 thermal simulation testing machine at a strain rate of 3×10-3 s-1 and a deformation temperature of 600-1 100 ℃, true stress-strain curves are obtained. By analyzing the true stress-strain curves and microscopic structure of the samples, it can be concluded that 1 000 ℃ and slightly higher temperature are suitable for low-rate strain processing of 316LN stainless steel.
Key words： 316LN stainless steel; low-rate strain; dynamic recrystallization
CLD number： TG115.21 Document code： A
Article ID： 1674-8042（2017）02-0168-05 doi： 10.3969/j.issn.1674-8042-2017-02-009
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316LN不锈钢低速率应变下的热变形行为
裴海祥， 侯华， 李大赵， 闫锋
（中北大学 材料科学与工程学院， 山西 太原 030051）
摘要:目前， 对316LN不锈钢在低速率应变下的热变形行为研究很少。 本文选用工业316LN不锈钢， 通过Gleeble-3800热模拟试验机进行了600-1 100 ℃温度下， 应变速率为3×10-3 s-1的热压缩试验， 得到了真应力-应变曲线。 通过分析真应力-应变曲线和试样的微观组织， 得到了如下结论： 1 000 ℃和稍高温度是适于低速率应变下316LN不锈钢加工的温度。
关键词:316LN不锈钢； 低速率应变； 动态再结晶
引用格式：PEI Hai-xiang， HOU Hua, LI Da-zhao, et al. Hot deformation behavior at low-rate strain of 316LN stainless steel. Journal of Measurement Science and Instrumentation, 2017, 8(2)： 168-172. ［doi： 10.3969／j.issn.1674-8042.2017-02-009］
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