Microstructure and properties of Nb,V and N alloyed low magnetic hot rolled stainless steel plate

作     者：Jing-Bo Dong Kun Li Li-Xiang Gao Chang-Sheng Li 

作者机构：State Key Laboratory of Rolling and AutomationNortheastern UniversityShenyang110819China 

出 版 物：《Tungsten》 (钨科技（英文）)

年 卷 期：2023年第5卷第4期

页      面：512-521页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Key Research Project of China(2016YFB0300402) 

主　　题：Low magnetic stainless steel Steel plate Solution strengthening Second phase Precipitation strengthening 

摘      要：It is a common technical difficulty to improve the strength of low magnetic stainless steel plates on the premise of ensuring ductility,corrosion resistance,and low *** this paper,the chemical composition of low magnetic stainless steels with excellent paramagnetic stabilities and corrosion resistances was formulated through composition design and *** the alloying of Nb,V,and N and the controlled hot rolling process,large numbers of uniformly distributed high-temperature second phase particles were formed in the steel plate,and low magnetic stainless steel 35 mm plate with yield strength,ultimate tensile strength and elongation of 407 MPa,739 MPa and 54%respectively were *** main strengthening strategies of the steel were solid solution strengthening and precipitation *** precipitation law and types of the high-temperature second phase in the steel were *** micro structure of the steel plate was characterized by scanning electron microscope,electron probe microanalysis,and transmission electron *** magnetic properties of the steel plate were tested by a vibrating sample *** relative magnetic permeability of the hot rolled plate was 1.0063 which met the requirement of low magnetism.