超低碳、氮Cr17铁素体不锈钢低温轧制工艺中织构演变

材料研究学报

2011, Vol. 25

Issue (5): 469-475

研究论文

本期目录 | 过刊浏览

超低碳、氮Cr17铁素体不锈钢低温轧制工艺中织构演变

高飞, 刘振宇, 王国栋

东北大学轧制技术及连轧自动化国家重点实验室沈阳 110819

Evolution of Through-Thickness Texture in Ultra–low C, N 17%Cr Ferritic Stainless Steel during Warm Rolling

GAO Fei, LIU Zhenyu, WANG Guodong

The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819

引用本文:

高飞刘振宇王国栋. 超低碳、氮Cr17铁素体不锈钢低温轧制工艺中织构演变[J]. 材料研究学报, 2011, 25(5): 469-475.
, , . Evolution of Through-Thickness Texture in Ultra–low C, N 17%Cr Ferritic Stainless Steel during Warm Rolling[J]. Chin J Mater Res, 2011, 25(5): 469-475.

全文: PDF(978 KB)

摘要: 研究了铁素体不锈钢在低温轧制过程中织构演变及γ纤维再结晶织构的形成机制。结果表明: 1.冷轧退火板厚度方向各层织构特征存在显著差异, 这主要是由于低温轧制过程中沿板厚方向不同应变状态导致的热轧织构梯度的遗传; 2.热轧及退火后, 表层织构以剪切织构组分为主, 冷轧后得到主要组分集中在{112}<110>和{111}<110>的冷轧织构。因此, 冷轧退火后形成不均匀的γ再结晶纤维织构。3.热轧及退火后, 半厚度层及中心层织构以γ纤维织构为主,冷轧后得到与α纤维织构强度相近且主要组分集中在{111}<112>的γ纤维织构。因此, 冷轧退火后形成均匀的γ再结晶纤维织构。

关键词 ：金属材料, 铁素体不锈钢, 低温轧制, 织构, 演变规律

Abstract：The through-thickness texture evolution and formation mechanism of γ–fiber recrystallization texture in ultra–low C, N 17%Cr ferritic stainless steel during warm rolling were investigated. The results show that: 1.The texture of the cold rolled and annealed sheet displayed pronounced throughthickness texture gradients that were inherited from the hot rolling texture gradients due to the variation of strong through-thickness strain states during warm rolling; 2. After hot rolling and annealing the surface texture consists of a strong shear texture, and the textures with major components at {112}<110>and {111}<110> can be obtained after cold rolling. Therefore, the inhomogeneous γ–fiber recrystallization texture was formed after cold rolling and annealing; 3. The γ–fiber is the major component after the hot
rolling and annealing at mid–section and 1/4–section, and after cold rolling γ–fiber with major component at {111}<112> and the intensity close to that of α–fiber can be obtained. Therefore, a uniform γ–fiber recrystallization texture was formed after cold rolling and annealing.

Key words： metallic materials ferritic stainless steel warm rolling texture evolution

收稿日期: 2011-06-02

ZTFLH:

TG113

基金资助:

国家自然科学基金50734002和51004035资助项目。

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