316L不銹鋼動態再結晶行為

項建英; 宋仁伯; 任培東

doi:10.13374/j.issn1001-053x.2009.12.019

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316L不銹鋼動態再結晶行為

doi: 10.13374/j.issn1001-053x.2009.12.019

1. 北京科技大學材料科學與工程學院, 北京 100083;
2. 酒泉鋼鐵股份有限公司技術中心, 嘉峪關 735100

詳細信息

作者簡介:
項建英(1985-),男,碩士研究生;宋仁伯(1970-),男,副教授,博士,E-mail:songrb@mater.ustb.edu.cn

中圖分類號: TG142.71
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- 文章訪問數: 191
- HTML全文瀏覽量: 40
- PDF下載量: 18
- 被引次數: 0
出版歷程
- 收稿日期: 2009-03-26
- 網絡出版日期: 2021-08-09

Dynamic recrystallization behavior of 316 L stainless steel

1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Technological Center, Jiuquan Iron & Steel Co. Ltd, Jiayuguan 735100, China

摘要

摘要: 在Gleeble-1500熱模擬試驗機上,通過高溫壓縮實驗對316L不銹鋼的動態再結晶行為進行了系統研究.結果表明:316L不銹鋼熱變形加工硬化傾向性較大,在真應力應變曲線上沒有出現明顯的應力峰值σ_p;316L不銹鋼在熱變形過程中發生了動態再結晶,但只是在局部區域觀察到了動態再結晶晶粒.對動態再結晶的實驗數據進行擬合,得到316L不銹鋼的熱激活能和熱變形方程,并給出了發生動態再結晶的臨界應變和臨界應力以及Zener-Hollomon參數和穩態應力的關系.
- 不銹鋼 /
- 應力應變曲線 /
- 動態再結晶 /
- 熱變形
Abstract: Dynamic recrystallization (DRX) in 316 L stainless steel was systematically studied by high temperature compression tests on a Gleeble-1500 thermal simulation testing machine. The results show that 316 L stainless steel has a large hot work-hardening tendency and there is no peak stress on its true stress-strain flow curves. DRX occurs in the hot working of 316 L stainless steel, but DRX grains can be observed only in the local area of metallographic phase. The activation energy for deformation and the thermal deformation equation of 316 L stainless steel were derived after the fitting analysis of experimental data of DRX. The critical strain and the critical stress of DRX as well as the relationship between steady state stress during hot deformation and Zener-Hollomon parameter of 316 L stainless steel were obtained.
- stainless steel /
- stress-strain curve /
- dynamic recrystallization /
- thermal deformation