复合添加锰及铝-钛-硼对ZA27合金组织和性能的影响
Effects of Mn and Al-Ti-B on Microstructure and Properties of ZA27 Alloy
摘 要
利用扫描电镜和电子万能试验机研究了复合添加锰及铝-钛-硼中间合金对砂模铸造ZA27合金组织和性能的影响.结果表明:复合添加锰及铝-钛-硼后合金的铸态组织得到明显改善,析出硬化相增多,颗粒细小且分布均匀;合金的室温抗拉强度随着锰和铝-钛-硼的加入得到提高,特别是当复合添加0.4%Mn和1%Al-Ti-B时,其抗拉强度、伸长率分别提高了11.41%,49.09%,达到了420 MPa,4.89%;复合添加0.4%Mn和1%Al-Ti-B使合金的耐磨性能有一定提高.
砂模铸造
铸态组织
性能
ZA27 alloy
sand-casting
casting microstructure
property
Abstract
Effects of Mn and Al-Ti-B on the microstructure and properties of ZA27 alloy prepared by sand-casting technology were studied with the help of SEM and electronic universal testing machine.The results indicated that with multi-addition of Mn and Al-Ti-B,the microstructure of ZA27 alloy was improved due to the increase of hardening phases with fine sizes and uniform distribution.The tensile strength and elongation of ZA27 alloy were increased to different degrees with the addition of Mn and Al-Ti-B.Especially,when multi-addition of 0.4%Mn and 1%Al-Ti-B,the values of the tensile strength and elongation were increased by 11.41% and 49.09% reached 420 MPa and 4.89% respectively,compared with the alloy without addition of Mn and Al-Ti-B.With the multi-additions of 0.4%Mn and 1%Al-Ti-B,the wear resistance of ZA27 alloy also increased to a certain extent.
中图分类号 TG146
所属栏目 材料性能及其应用
基金项目
收稿日期 2007/8/16
修改稿日期 2007/10/18
网络出版日期
作者单位点击查看
备注王艳芹(1981-),女,山东寿光人,硕士研究生.
引用该论文: WANG Yan-qin,ZHAO Yu-tao,CHEN Gang,ZHANG Song-li,WANG Chang-qin. Effects of Mn and Al-Ti-B on Microstructure and Properties of ZA27 Alloy[J]. Materials for mechancial engineering, 2008, 32(7): 56～59
王艳芹,赵玉涛,陈刚,张松利,汪长勤. 复合添加锰及铝-钛-硼对ZA27合金组织和性能的影响[J]. 机械工程材料, 2008, 32(7): 56～59
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参考文献
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【2】Su Huaqin,Shi Zhongliang,Zhu Mingfang.Wear performance and mechanism of zinc-aluminum(ZA27) alloy[J].Journal of Southeast University,1995,11(2):1-8.
【3】施忠良,林萍华,尹衍升,等.高铝锌基合金的滑动摩擦特性研究[J].机械工程材料,1994,18(2):40-42.
【4】Prasad B K.Wear response of a zinc-based alloy containing silicon as influenced by material microstructure and test conditions[J].Mater Sci Eng A,2004,367(1/2):63-73.
【5】苏德煌.锂对ZA27合金高温力学性能的影响[J].特种铸造及有色合金,1998(6):26-27.
【6】赵沛廉,张金山.锰对ZA-27合金高温性能的影响[J].材料科学与工艺,1996,4(3):34-37.
【7】Tagami M,Ohtani T,Usami T.Effect of heat treatment,content of cuand-Mg,and rolling reduction on the damping capacity and mechanical properties of Zn-22%Al alloy[J].Light Metals,1988,38(2):107-113.
【8】闫承俊,王吉岱,孙静,等.稀土氧化物对高铝锌基合金力学性能的影响[J].铸造技术,2006,27(8):842-844.
【9】周明,赵玉涛,周伯仪,等.Mn对ZA27合金组织与性能的影响[J].江苏理工大学学报,1998,19(1):60-64.
【10】胡海明,吕乐扬,刘勇.Al-Ti-B变质剂对ZA27合金组织及性能的影响[J].机械工程材料,1997,21(6):23-25.
【11】陈体军,郝远,孙军,等.ZA27合金的微观组织[J].中国有色金属学报,2002(4):294-299.
【12】张成华.硅锰对高铝锌基合金性能影响的研究[D].镇江:江苏理工大学,2003.
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