变质处理对过共晶Al-Si-Cu-Mg合金组织与性能的影响
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- 英文论文题名：The Effect of Modification on the Microstructure and Properties of Hypereutectic Al-Si-Cu-Mg Alloy
- 论文作者：孙继鸿 ; 李润霞 ; 肖天宇 ; 张琦 ; 郝建飞 ; 于宝义 ; 李荣德
- 英文论文作者：Sun Ji-hong ; Li Run-xia ; Xiao Tian-yu ; Zhang Qi ; Hao Jian-fei ; Yu Bao-yi ; Li Rong-de ; School of Materials Science and Engineering ; Shenyang University of Technology
- 年：2016
- 作者机构：沈阳工业大学材料科学与工程学院;
- 论文关键词：过共晶Al-Si-Cu-Mg合金 ; 变质处理 ; 力学性能 ; 显微组织
- 英文论文关键词：Hypereutectic Al-Si-Cu-Mg alloy ; Modification ; Mechanical Property ; Microstructure
- 会议召开时间：2016-07-19
- 会议录名称：第十五届全国金相与显微分析学术年会论文集
- 语种：中文
- 分类号：TG146.21;TG292
- 学会代码：EGTA
- 会议名称：第十五届全国金相与显微分析学术年会
- 会议地点：中国青海西宁
- 主办单位：中国体视学学会金相与显微分析分会
- 学会名称：中国体视学学会
- 页数：7
- 文件大小：4704k
- 原文格式：O
- 会议级别：全国
摘要
本文研究了Sr、Sr-P变质处理对过共晶Al-Si-Cu-Mg合金组织和性能的影响。通过力学性能测试和显微组织观察,分析变质处理对合金组织和力学性能的影响。在合金中加入不同变质剂,合金的硬度、抗拉强度、伸长率等力学性能都会提高。实验测定,经过Sr和P复合变质的合金硬度、抗拉强度及伸长率明显提高。Sr和P复合变质比Sr变质具有更好的效果。
This paper mainly studies the effects of Sr and Sr-P modification on the microstructure and properties of hypereutectic Al-Si-Cu-Mg alloy.Through mechanical properties of the specimen and observation of the microscopic microstructure,the effect of the modification on microstructure and mechanical properties of alloy is analyzed.After adding different modifications in the alloy,mechamcal properties of hardness,tensile strength,elongation will improve.The experimental determination of compound modifier which the component alloys are Sr-P,the hardness,tensile strength and elongation of the hypereutectic Al-Si-Cu-Mg alloy reached the maximum value.The alloy with the compound modification of Sr-P is much better than the one with the modification of Sr.
This paper mainly studies the effects of Sr and Sr-P modification on the microstructure and properties of hypereutectic Al-Si-Cu-Mg alloy.Through mechanical properties of the specimen and observation of the microscopic microstructure,the effect of the modification on microstructure and mechanical properties of alloy is analyzed.After adding different modifications in the alloy,mechamcal properties of hardness,tensile strength,elongation will improve.The experimental determination of compound modifier which the component alloys are Sr-P,the hardness,tensile strength and elongation of the hypereutectic Al-Si-Cu-Mg alloy reached the maximum value.The alloy with the compound modification of Sr-P is much better than the one with the modification of Sr.
引文
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[12]梁国萍,苏勇,刘福东,等.P+RE变质对过共晶Al-Si合金组织的影响[J].特种铸造及有色合金,2010,30(3):273-275.
[2]Shivaree,L Wang,D Abelian.Molten metal processing of advanced cast aluminum alloys[J].JOM January,1991,53(25):26-32.
[3]Wang P,Lilia Y,Lee S.Effect of Be addition on microstractures and mechanical properties of B319alloys[J].Mater Chem Phys,1998,12(6):195-202.
[4]Yu G,Gothicist.Particulate Silicon Mitered-based Composites[J].MaterSci,1994,29(10):2541-2556.
[5]李荣德,许国宇,李润霞.对铸造Al-Si-Cu-Mg合金力学性能的影响阴.铸造,2006,55(4):390-392.
[6]辛社伟.一种高性能铸造Al-Si系合金的研制及应用研究[D].阜新:辽宁工程技术大学,2005.
[7]Chakrabarti DJ,PengY G,David E.Precipitation in Al-Mg-Si alloys with Cu additions and the role of the Q'and relates phases[J].Mate.Sci.Forum,2002,12(11):857-862.
[8]姚书吉,毛卫国,赵爱民,等。过共晶铝硅合金细化变质剂的研究[J].特种铸造及有色合金,2000,(5):1-3.
[9]赵恒生,陈润辉.过共晶铝-硅合金变质的进[J1.轻金属,1992,(2):60-64.
[10]兰国栋.高硅铝合金零件挤压铸造技术研究[D].武汉:华中科技大学,2007.
[11]孙进宝.Al-15.5Si-4.5Cu-1.0Zn-0.7Mg-0.5Ni变形合金组织与性能研究[D].沈阳:东北大学,2011.
[12]梁国萍,苏勇,刘福东,等.P+RE变质对过共晶Al-Si合金组织的影响[J].特种铸造及有色合金,2010,30(3):273-275.