材料科学与工程学报2017，Vol.35Issue(6)：866-870,5.DOI:10.14136/j.cnki.issn 1673-2812.2017.06.002
不同初始磁状态U75V钢变形阶段的磁记忆参数表征
Characterization of Magnetic Memory Parameters of U75V Steel with Different Deformation Stages and Initial Remanent States
摘要
Abstract
Influence of initial remanent states on metal magnetic memory (MMM) signals was investigated by performing static tensile tests on the demagnetized and undemagnetized U75V steel specimens.For the demagnetized specimen,the surface magnetic fields present a good linearity within its longitudinal axis in the elastic stage,and the tangential magnetic component shows an obvious local bending in the plastic stage.The average magnetic field of the tangential component and the magnetic gradient of the normal component can be used to differentiate the elastic-plastic deformation stages and evaluate the elastic stress.For the undemagnetized specimen,the amplitude of magnetic field variation reduces with increasing load,and the magnetic signals transform from initial random distribution to magnetic ordering state.The deformation stages can be characterized by both the average magnetic field and the magnetic gradient of MMM signals measured outside the longitudinal axis of the undemagnetized specimen.关键词
初始磁状态/变形阶段/磁记忆参数/拉伸试验Key words
initial remanent state/deformation stage/magnetic memory parameters/tensile test分类
矿业与冶金引用本文复制引用
付美礼,包胜,柏树壮,楼煌杰..不同初始磁状态U75V钢变形阶段的磁记忆参数表征[J].材料科学与工程学报,2017,35(6):866-870,5.基金项目
浙江省自然科学基金资助项目(LZ12E08003) （LZ12E08003）
中央大学基础研究基金资助项目(2015QNA4028) （2015QNA4028）
