硼合金化处理对高锰钢组织和性能的影响  

Effect of Boron Alloying Treatment on the Microstructure and Properties of High Manganese Steel

作　　者：彭伟 王晓荣[1] 庄文玮[1] Peng Wei;Wang Xiaorong;Zhuang Wenwei(School of Mechanical and Electronic Engineering,East China University of Technology,Nanchang 330013,China)

机构地区：[1]东华理工大学机械与电子工程学院,南昌330013

出　　处：《机电工程技术》2023年第1期37-39,共3页Mechanical & Electrical Engineering Technology

基　　金：江西省科技厅科技计划项目(20133BBE50012)。

摘　　要：为了改善高锰钢的组织性能,提升高锰钢衬板的质量,对传统高锰钢进行了硼元素的合金化处理。采用金相组织分析硬度测试、抗拉、耐磨分析等手段研究了硼合金化处理后高锰钢的组织与性能。结果表明:把不同含量的硼(0.001 5%~0.006 0%)加入到传统高锰钢中,通过热处理后,金相组织中晶界碳化物随着硼含量的增加而相应减少,碳化物以粒状和团块状分布在晶内之中;衬板的洛氏硬度在18.2~22.5 HRC变化;抗拉强度先升高后降低,最大为440 MPa,最小为380 MPa;耐磨性提高。随着硼含量的增加,高锰钢的晶粒明显细化,夹杂物的尺寸和分布也得到了改善。机械性能方面,合金高锰钢的硬度略有提高了,最高能达到22.5 HRC。抗拉强度随着硼元素的加入也得到改善,提高了5.6%~22.2%,最高能达到440 MPa。结果表明,综合性能最好的是加入0.003%左右硼的高锰钢。In order to improve the tissue performance of high manganese steel, improve the quality of high manganese steel lining plate, the traditional high manganese steel was alloyed with boron. The microstructure and properties of the high manganese steel after boron alloying were studied by means of metallographic analysis, hardness test, tensile analysis and wear analysis. The results showed that when different contents of boron(0.001 5% ~ 0.006 0%) were added to the traditional high manganese steel, the carbide in the tissue decreased with particles and clumps in the crystal, the hardness of the lining plate was 18.2~22.5 HRC, the tensile strength increased first then decreased, maximum440 MPa, minimum 380 MPa;wear resistance was improved. With the increase of boron content, the grain of high manganese steel was significantly refined and the size and distribution of inclusions were improved. In terms of mechanical properties, the hardness of alloy highmanganese steel was slightly improved, with a maximum capacity of 22.5 HRC. The tensile strength was also improved with the addition of boron elements, increasing by 5.6% to 22.2%, up to 440 MPa. The results show that the best comprehensive performance is the high manganese steel with about 0.003% boron.

关 键 词：高锰钢 合金化 金相组织 硬度 抗拉强度 耐磨性 

分 类 号：TG113[金属学及工艺—物理冶金]