多元耐磨铝青铜的强化工艺  

Study on Strengthening Process of CuNiAlSi Alloy

作　　者：史永臣[1] 朱治愿[2] 

机构地区：[1]江苏科技大学数理学院,江苏镇江212003 [2]江苏科技大学材料科学与工程学院,江苏镇江212003

出　　处：《热加工工艺》2010年第6期161-162,共2页Hot Working Technology

基　　金：江苏科技大学人才引进科研启动基金资助项目(2007)

摘　　要：研究了热处理对铸态多元铝青铜的微观组织和性能的影响,确定了合金的较佳固溶-时效热处理参数,探讨了合金的强化机理。结果表明,合金经960℃×2h(水淬)固溶+520℃×3h(空冷)时效工艺处理后,硬度为40.8HRC,抗拉强度为608MPa,冲击韧度为4.8J/cm-2。The effects of heat-treatment on microstructure and properties of multi-element micro-alloying aluminum-bronze alloy and strengthening mechanics were studied. The better process for solution-aging tratment was confirmed. The results show that the tensile strength,hardness and impact ductility is up to 608 MPa,40.8 HRC and 4.8 J/cm^-2 after 960 ℃×2 h solution （cooling in water）＋520 ℃× 3 h aging （cooling in air）.

关 键 词：多元铝青铜 固溶 时效 显微组织 硬度 

分 类 号：TG156.92[金属学及工艺—热处理]