烧结钕铁硼的摩擦磨损性能研究  

Study on Friction and Wear Properties of Sintered Nd-Fe-B

作　　者：孔维峰 Kong Weifeng(Fujian Changting Golden Dragon Rare-Earth Co.,Ltd.,Changting 366300,Fujian;Xiamen Tungsten Co.,Ltd.,Xiamen 361009,Fujian)

机构地区：[1]福建省长汀金龙稀土有限公司,福建长汀366300 [2]厦门钨业股份有限公司,福建厦门361009

出　　处：《福建冶金》2022年第2期43-46,28,共5页Fujian Metallurgy

摘　　要：提高烧结钕铁硼在磨削、切削工段的效率可以有效降低企业的生产成本,然而对钕铁硼摩擦磨损性能的研究较少。本文针对两款量产产品进行分析,两款产品分别为(PrNd)_(31)M_(1.5)Co_(1.0)B_(1.0)Febal与(PrNd)_(31)M_(1.5)Co_(2.0)B_(1.0)Febal,其中M=Cu、Al、Ga、Ti和Zr。(PrNd)_(31)M_(1.5)Co_(2.0)B_(1.0)Febal比(PrNd)_(31)M_(1.5)Co_(1.0)B_(1.0)Febal产品较难磨削,实际磨削加工时间长,研究结果表明,较难磨削的产品Co含量偏高,多余Co原子进入主相晶格导致主相晶粒的力学性能发生变化,从而导致产品具有不同的摩擦磨损性能。Improving the grinding and cutting efficiency of sintered NdFeB can effectively reduce the production cost of enterprises.However,there are few studies on the friction and wear properties of NdFeB.At present,two mass-produced products are analyzed,namely(PrNd)_(31)M_(1.5)Co_(1.0)B_(1.0)Febal and(PrNd)_(31)M_(1.5)Co_(2.0)B_(1.0)Febal,M=Cu,Al,Ga,Ti and Zr.Compared with(PrNd)_(31)M_(1.5)Co_(1.0)B_(1.0)Febal,it is more difficult and takes longer time for grinding of(PrNd)_(31)M_(1.5)Co_(2.0)B_(1.0)Febal.The result shows that more Co content make it more difficult to do grinding.That is because the remaining Co atoms are diffused into the main phase and change the mechanical properties of the main phase grains,which results in different friction and wear properties of the products.

关 键 词：烧结钕铁硼 力学性能 摩擦磨损性能 Co元素 

分 类 号：TM273[一般工业技术—材料科学与工程]