固溶工艺对3Al-310S耐热钢组织和力学性能的影响  

Effect of Solid Solution Process on the Organization and Mechanical Properties of 3Al-310S Heat-resistant Steel

作　　者：张艳梅[1] 余海存 仇秋玲 Zhang Yanmei;Yu Haicun;Qiu Qiuling(Central Academe,Shanghai Electric Group Co.,Ltd.,Shanghai 200070,China;School of Materials Science and Engineering,Lanzhou University of Technology,Lanzhou 730050,China;State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]上海电气集团股份有限公司中央研究院,上海200070 [2]兰州理工大学材料科学与工程学院,兰州730050 [3]兰州理工大学省部共建有色金属先进加工与再利用国家重点试验室,兰州730050

出　　处：《特殊钢》2024年第6期95-101,共7页Special Steel

摘　　要：通过向普通310S不锈钢中添加3%Al制得3Al-310S耐热不锈钢,试验钢经过不同固溶工艺处理后,采用X射线衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)及室温拉伸性能测试,研究固溶工艺对3Al-310S耐热钢显微组织和力学性能的影响规律。结果表明,3Al-310S耐热钢基体组织为奥氏体,随着固溶时间的增加和固溶温度的提高,3Al-310S耐热钢的晶粒尺寸逐渐增大;同时相对应的3Al-310S板材的硬度和抗拉强度逐渐降低,伸长率逐渐提高,当固溶温度为1000℃,固溶时间为10 min时,试验钢的抗拉强度达618.75 MPa,伸长率为33.80%。This article prepares 3Al-310S heat-resistant stainless steel by adding 3%Al to ordinary 310S stainless steel.After different solid solution processes,the experimental steel is subjected to X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),and room temperature tensile performance testing to study the influence law of solid solution processes on the microstructure and mechanical properties of 3Al-310S heat-resistant steel.The research results indicate that the matrix structure of 3Al-310S heat-resistant steel is austenite.With the extension of solution time and the increase of solution temperature,the grain size of 3Al-310S heat-resistant steel gradually increases.With the increase of solution time and solution temperature,the hardness and tensile strength of 3Al-310S plate gradually decrease,and the elongation gradually increases.Among them,when the solution temperature is 1000℃and the solution time is 10 minutes,the tensile strength of the experimental steel reaches 618.75 MPa,and the elongation is 33.80%.

关 键 词：3Al-310S耐热钢 固溶工艺 显微组织 力学性能 

分 类 号：TG142.71[一般工业技术—材料科学与工程]