有色金属科学与工程2017，Vol.8Issue(4)：19-25,90,8.DOI:10.13264/j.cnki.ysjskx.2017.04.004
DH36高强度船板钢综合强化机理
Comprehensive strengthening mechanism of DH36 high-strength ship plate steel
摘要
Abstract
DH36 steel is widely used in China currently as high strength hull structural steel. By means of carbon replica, XRD diffraction, TEM observation and analysis method, type, morphology, size and number of the nano precipitatesin the DH36 steel aftercontrolled rolling and controlled cooling were analyzed in detail. The results show that the morphology of the precipitates in the microstructure of DH36 steel are mostly in form of regular square, which is mainly composed of (Ti, Nb) (C, N); the volume fraction of the carbonitride precipitationin DH36 steel is 0.00957 %; the total contribution to the precipitation strengthening and fine grain strengthening is 211.24 MPa and 212.30 MPa,respectively, solid solution strengthening is 122.93 MPa and dislocation is 134.43 MPa.关键词
DH36船板钢/析出强化/固溶强化/细晶强化/位错强化Key words
DH36 steel/precipitation strength/solid solution strength/fine grain strength/dislocation strength分类
矿业与冶金引用本文复制引用
吴建中,杨文晟,郭汉杰,于梦曦,石骁,段生朝..DH36高强度船板钢综合强化机理[J].有色金属科学与工程,2017,8(4):19-25,90,8.基金项目
国家自然科学基金资助项目(51274031) （51274031）
