中国机械工程Issue(14)：1983-1986,4.DOI:10.3969/j.issn.1004132X.2015.14.024
脉冲磁处理金刚石结块的实验及磁场数值模拟
Experiments of Pulsed Magnetic Treatment for Diamond Segments and Numerical Simulation of Magnetic Field
摘要
Abstract
Diamond segments were made by hot-pressed sintering technology and treated by alternating magnetic field.The impact energy of diamond segments were investigated by impact tough-ness test,which were treated with pulsed magnetic treatment and not treated.And the numerical sim-ulation was made for the transient magnetic field.The microstructures of diamond segments both be-fore and after the magnetic experiment were observed.The experimental results indicate that the im-pact toughness of diamond segments is improved on average about 35.4% and the crystalline grain gap become more uniformity after magnetized.The numerical analysis results reveal that the intensity of magnetic field and the magnetic force in the edge of diamond segment is concentrated,the magnetic vi-bration due to alternating magnetic force is in favor of magnetic shock effect.It provides intuitionistic evidences for that the alternating magnetic treatment can be used as one kind of effective technique to improve the material performance of diamond segments.关键词
金刚石结块/磁处理/冲击韧性/显微组织/数值模拟Key words
diamond segment/magnetic treatment/impact toughness/microstructure/numerical simulation分类
矿业与冶金引用本文复制引用
付宇明,刘明,郭建龙,郑丽娟..脉冲磁处理金刚石结块的实验及磁场数值模拟[J].中国机械工程,2015,(14):1983-1986,4.基金项目
国家自然科学基金资助项目(51105325) （51105325）
河北省高等学校科学技术研究重点项目(ZH2012022) （ZH2012022）
河北省自然科学基金资助项目(E2014203223) （E2014203223）
