Microstructures and Fracture Behaviors of Near Rapidly Solidified Fe-20Mn-Al-C Low-density Steels
Fe–Mn–Al–C alloys with high contents of Mn and Al have excellent mechanical properties and attracted much attentions as a promising structural material.Inthe present work,2 mm-thick stripslow-density steelsof Fe–20Mn–Al (9,12wt%)–C(0.6,0.8wt%)have been produced by arapid solidification process.Thesolidifiedmicrostructures and the tensile fracture were investigated.There are three types of solidification zones alongthe thickness directionof strips,the changesof aluminum and carbon contents lead to the microstructuralchange ofstrips and then the different fracture modes.Micro-cracksare prone to form along the secondary dendrite,therebygiving rise to brittle-fractureand deteriorating the ductility.
Fe-Mn-Al-C steel low-density steel near rapid solidification fracture behavior
SONG Changjiang LI Chunming LIU Libing YANG Yang ZHAI Qijie
State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgyand School of Materials Science and Engineering, Shanghai University,Shanghai 200072, China
国际会议
成都
英文
251-254
2016-11-16（万方平台首次上网日期，不代表论文的发表时间）