Research and development on new type of cast high manganese steel
After adding different Cr, Mo, B, Re element, the new type of high manganese cast steel was prepared by using of vacuum induction furnace. Microstructure and mechanical properties of as-cast and heat treated alloys and wear quantity of material were investigated by optical microscope, Brinell hardness tester, multifunctional tensile tester and abrasive wear tester. Results showed that in the as cast microstructure many pearlite and carbide precipitate on the boundary of grains; after quenching the sample in water the pearlite is basically dissolved, but a little of carbide is still not dissovled. The hardness of all of the samples is more than 220 HB, impact toughness reaches or exceeds 140 J/cm2, and ultimate tensile strength of some sample reaches 753 MPa. Compared with the alloy of England MMD teeth component, some samples have better wear resistance, especially the samples 2-3 and 4-6, their wear loss are 0.02 g. The mechanical properties of cast high manganese steel are better than those of alloy materials that are used to produce some parts of the roadheader and shearer. The high performance-to-price ratio of high manganese steel eatings provides wide space for development of heavy equipment.
New type of cast high manganese steel abrasive wear resisting roadheader shearer hardness
Sun Wei Zhang Jia Yan Jun Tian Xingna Wang Junqing
Research Institute of Materials, Sany Heavy Equipment Co., Ltd., Shenyang 110027, China
国际会议
The 11th Asian Foundry Congress(第11届亚洲铸造会议 AFC-11)
广州
英文
1-8
2011-11-12（万方平台首次上网日期，不代表论文的发表时间）