高强热轧钢板拉伸试样断口呈现分离状现象解析  

Analysis on the Fracture of Tensile Specimen of High Strength Hot Rolled Steel Plate

作　　者：石发才[1] 曹永录[1] 张志波[1] Shi Facai;Cao Yonglu;Zhang Zhibo(Shanxi Taigang Stainless Steel Co.,Ltd.,Taiyuan Shanxi 030003)

机构地区：[1]山西太钢不锈钢股份有限公司,山西太原030003

出　　处：《山西冶金》2023年第2期7-9,共3页Shanxi Metallurgy

摘　　要：在C-Si-Mn体系中添加Nb、Ti、V、Mo等微合金元素,采用控扎控冷工艺获得强度700 MPa以上热轧钢板,对拉伸断口呈现分离状的试样进行形貌描述,分析其产生机理、产生时机,以及对下游行业加工应用的影响程度等。Nb,Ti,V,Mo and other microalloy elements are added to the C-Si-Mn system,and the hot-rolled steel plate with strength of more than 700 MPa is obtained by controlled rolling and controlled cooling process.The morphology of the sample with separated tensile fracture is described,and its generation mechanism,generation time,and impact on the processing and application of downstream industries are analyzed.

关 键 词：高强度 轻量化 分离断口 

分 类 号：TG142.7[一般工业技术—材料科学与工程]