人工时效对Al5TiB变质ZA84镁合金力学性能及阻尼性能的影响  

Effects of artificial aging treatment on mechanical properties and damping capacities of magnesium alloy ZA84 modified by Al5TiB

作　　者：王建强[1] 樊云昌[1] 关绍康[2] 胡连海[1] 

机构地区：[1]石家庄铁道学院材料分院,河北石家庄050043 [2]郑州大学材料学院,河南郑州450002

出　　处：《材料热处理学报》2006年第3期64-67,共4页Transactions of Materials and Heat Treatment

摘　　要：研究人工时效对Al5TiB变质ZA84镁合金力学性能及阻尼性能的影响。结果表明,经过8h人工时效后,合金在室温下的屈服强度提高32%、抗拉强度提高38%;150℃下的屈服强度提高43%,抗拉强度提高13%。经过人工时效后,ZA84镁合金保持了其优良的低温(低于200℃)阻尼性能,而其高温(200-300℃)阻尼性能则得到了显著提高。The effects of artificial aging treatment on mechanical properties and damping capacities of the magnesium alloy ZA84 modified by Al5TiB were studied.The results show that after artificial aging treatment,the mechanical properties of the magnesium alloy are remarkbly improved.Compared with as-cast alloy,yield strength of the alloy aged for 8 hours increases 32%,tensile strength increases 38% at ambient temperature,and the corresponding yield strength increases 43%,and tensile strength increases 13% at 150oC.The magnesium alloy aged at 175℃ maintains its high damping capacity at temperatures below 200℃,and meanwhile its damping capacity at higher temperatures(200～300℃) is significantly increased.

关 键 词：人工时效 AL5TIB ZA84镁合金 力学性能 阻尼性能 

分 类 号：TG146.22[一般工业技术—材料科学与工程]