新型高硼合金钢的研究  

Study of New Type High Boron Alloy Steel

作　　者：冯锡兰[1] 蒋志强[1] 符寒光[2] 郭友寒[1] 

机构地区：[1]郑州航空工业管理学院机电工程系,河南郑州450015 [2]清华大学先进成形制造重点实验室,北京100084

出　　处：《金属热处理》2006年第z1期57-60,共4页Heat Treatment of Metals

基　　金：河南省高校杰出科研人才创新工程(2006KYCX022)河南省教育厅自然科学研究计划(200510485026)河南省科研攻关计划(0424260002;0535010700)郑州市科技攻关计划(052SGYG21110)

摘　　要：研究了稀土-钛-氮复合变质处理对高硼合金钢组织和性能的影响。结果表明含稀土-钛-氮的高硼合金钢的凝固组织明显细化,且组织分布均匀。经高温热处理后,硼化物变成了球状和棒状,高硼合金钢强度得到改善,韧性明显提高,由12-15J／cm2提高至28-32J／cm2,分析了高硼合金钢强度和韧性提高的原因。含稀土 -钛-氮的高硼合金钢用于制造破碎机锤头,使用安全可靠,耐磨性比高锰钢提高220％-250％,且生产成本相当。The influence of rare earth, titanium and nitrogen on the structures and properties of high boron alloy steel was researched. The results show that the solidification structures of high boron alloy steel containing rare earth, titanium and nitrogen refine obviously and the distribution of structures is uniform. After heat treatment the boride in the high boron alloy steel containing rare earth, titanium and nitrogen turn into nodular and rod and the toughness of high boron alloy steel increase obviously, from 12 - 15J/cm2 to 28 - 32J/cm2. The reason that the strength and toughness are improved is analysed. High boron alloy steel containing rare earth, titanium and nitrogen is used to produce the crusher hammer, its abrasion resistance is 220% - 250% higher than that of high manganese steel.

关 键 词：高硼合金钢 硼化物 冲击韧性 锤头 

分 类 号：TG142.72[一般工业技术—材料科学与工程]