DH36船板钢拉伸断口分层的原因分析
张鑫
点击：2396次 下载：0次
作者单位：北京科技大学
中文关键字：DH36船板；断口分层；夹杂物；带状组织
英文关键字：DH36 hull plate, Laminated Fracture, inclusion, banded structure
中文摘要：采用金相检验、扫描电镜检验和断口形貌分析等手段对DH36船板钢拉伸断口分层缺陷进行了分析，结果表明：DH36船板钢拉伸断口分层缺陷主要是由钢板厚度中心条状MnS夹杂和宽大的贝氏体、马氏体带状组织引起的。
英文摘要：For analyzing the reason of laminated fracture under tensile test of DH36 hull plate, the research on macrostructure, microstructure, SEM and fracture were carried out. The results showed that the main reason were the Aggregation of MnS as well as the martensite and bainite banded structure in the center of plate.