锻压技术

轧制工艺参数对高强建筑用不锈钢组织和力学性能的影响

英文标题：Influence of rolling process parameters on microstructure and mechanical properties of high-strength architectural stainless steel

作者：耿城1 唐卉1 王赫1 杨清2

单位：1. 信阳农林学院风景园林艺术学院 2. 河南科技大学材料科学与工程学院

关键词：建筑用不锈钢轧制温度轧制变形量显微组织力学性能

分类号：TG146.2

出版年,卷(期):页码：2025,50(8):177-184

摘要：

研究了轧制温度（625和825 ℃）和轧制变形量（40%、60%和80%）对建筑用00Cr22Ni5Mo3N不锈钢的物相组成、微观组织和力学性能的影响。结果表明，轧制温度为625和825 ℃、3种轧制变形量下的不锈钢均由α铁素体和γ奥氏体组成；当轧制温度从625 ℃升高至825 ℃或轧制变形量从40%增加至80%时，不锈钢中的奥氏体和铁素体的晶粒尺寸均会逐渐增大。轧制变形量从40%增加至80%时，铁素体体积分数增大，不锈钢中亚微米晶和纳米晶的平均晶粒尺寸逐渐增大，纳米晶的体积分数减小，屈服强度和抗拉强度逐渐增大。轧制温度为625 ℃、轧制变形量为80%时的不锈钢具有较高强塑性。

The influences of rolling temperature (625 and 825 ℃) and rolling deformation amount (40%, 60% and 80%) on the phase composition, microstructure and mechanical properties of architectural stainless steel 00Cr22Ni5Mo3N were studied. The results show that the stainless steels rolled at 625 and 825 ℃ and subjected to three different rolling deformation amounts are composed of α-ferrite and γ-austenite. When the rolling temperature increases from 625 ℃ to 825 ℃ or the rolling deformation amount increases from 40% to 80%, the grain size of both austenite and ferrite in stainless steel gradually increases. When the rolling deformation amount increases from 40% to 80%, the volume fraction of ferrite increases, the average grain size of submicron and nanocrystals in stainless steel gradually increases, the volume fraction of nanocrystals decreases, and the yield strength and tensile strength graduelly increase. When the rolling temperature is 625 ℃ and the rolling deformation amount is 80%, the stainless steel exhibits higher strength and plasticity.

基金项目：

河南省科技计划课题（2023YFG0226）；河南省科技厅科技攻关项目（222102320066）；河南省科技厅软科学项目（252400411305）；河南省哲学社科规划基本项目（2024BYS042）；河南省高等教育教学改革研究与实践项目（2024SJGLX0550）；国家自然科学基金资助项目（51708448）

作者简介：耿城（1979-），男，硕士，副教授 E-mail：gengcheng79@sina.com 通信作者：唐卉（1990-），女，硕士，讲师 E-mail：5176426791@qq.com

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