热轧高强钢残余应力调控技术的研究现状及展望  

Development and prospect of residual stress control technology for hot rolled high strength steel

作　　者：丁文红 孙力 徐进桥 梁亮[4] 龚红根 鲁小轩 DING Wenhong;SUN Li;XU Jinqiao;LIANGLiang;GONG Honggen;LU Xiaoxuan(The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;HBIS Group Technology Research Institute,Shijiazhuang 050023,China;Wuhan Branch,Baosteel Central Research Institute,Wuhan 430080,China;Technical Center,Hunan Valin Lianyuan Iron and Steel Co.,Ltd.,Loudi 417009,China;Technical Center,Xinyu Iron and Steel Co.,Ltd.,Xinyu 338001,China)

机构地区：[1]武汉科技大学耐火材料与冶金国家重点实验室,湖北武汉430081 [2]河钢集团钢研总院,河北石家庄050023 [3]宝钢股份中央研究院武汉分院,湖北武汉430080 [4]湖南华菱涟源钢铁有限公司技术中心,湖南娄底417009 [5]新余钢铁股份有限公司技术中心,江西新余338001

出　　处：《轧钢》2022年第2期1-12,共12页Steel Rolling

基　　金：湖北省技术创新专项重大项目(2018AAA005)。

摘　　要：残余应力是导致材料畸变、应力腐蚀以及疲劳性能降低的主要因素。其影响因素复杂,力学加工、温度变化和组织转变都能够直接改变材料内的应力分布并影响其服役性能,因此,残余应力一直以来都是材料研发、制备及应用领域极具挑战性的重要研究方向。受残余应力表征技术的制约,钢铁行业在该领域的研究相对滞后,使畸变、应力腐蚀等成为游离于钢铁产品质量管控体系之外的不可控因素。从残余应力三维表征技术出发,围绕残余应力问题最为突出的热轧板带生产流程,探讨了组织转变和力学冶金过程的塑性行为及其对残余应力的影响,展望了残余应力调控的工艺优化方向和技术发展趋势。Residual stress is the main factor leading to distortion, stress corrosion and fatigue of materials.Because the mechanical processing, temperature change and microstructure transformation of materials can directly change the stress distribution and affect their service properties, residual stress has always been a challenging and important field of new material development, preparation and application.Restricted by the residual stress measurement technology, the research in the iron and steel industry lags behind, making distortion and stress corrosion uncontrollable.Starting from the three-dimensional measurement technology of residual stress and focusing on the process of high strength steel strip, the related technologies of residual stress formation and regulation were discussed as well as the plastic behavior of microstructure transformation and mechanical metallurgy process.The process optimization direction and technical development trend of residual stress regulation were prospected.

关 键 词：热轧 高强钢 残余应力 板形 相变塑性 

分 类 号：TG142.1[一般工业技术—材料科学与工程]