添加微量金属元素影响AlSi7Mg合金性能的研究综述
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摘要
AlSi7Mg合金具有比强度高、耐蚀性好、铸造性能优良等优点,广泛应用于汽车制造领域。但该合金在凝固成型过程中,易形成粗大的共晶硅,力学性能较差。添加金属元素或稀土元素可优化α-Al基体和细化共晶硅,提高力学性能。综述了主族金属元素(Sr,Sb,Cu,Zr),稀土元素(La,Re,Y,Eu),多种稀土元素或主族金属和稀土元素复合添加对AlSi7Mg合金组织形貌及力学性能的影响。
AlSi7Mg alloys,due to its advantages of high specific strength,good corrosion resistance and excellent castability,are widely used in automobile manufacturing and other fields. But the coarse eutectic silicon is easy to form in the process of solidification molding,which seriously damages the mechanical properties of AlSi7Mg. Adding metal elements and rare earth elements can optimize α-Al matrix,refine eutectic silicon and improve its mechanical properties. Effect of Sr,Sb,Cu,Zr metals,rare earth elements as well as a variety of rare earth elements or metal and rare earth elements compound on microstructure and mechanical properties is reviewed.
AlSi7Mg alloys,due to its advantages of high specific strength,good corrosion resistance and excellent castability,are widely used in automobile manufacturing and other fields. But the coarse eutectic silicon is easy to form in the process of solidification molding,which seriously damages the mechanical properties of AlSi7Mg. Adding metal elements and rare earth elements can optimize α-Al matrix,refine eutectic silicon and improve its mechanical properties. Effect of Sr,Sb,Cu,Zr metals,rare earth elements as well as a variety of rare earth elements or metal and rare earth elements compound on microstructure and mechanical properties is reviewed.
引文
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[2]申玉彬,王明星,刘志勇,等.变质A356合金的组织与力学性能[J].特种制造及有色合金,2012,32(12):1098-1102.
[3]赵后亮,周吉学,唐守秋,等.Sr含量对A356合金微观组织及力学性能的影响[J].山东科学,2016,29(5):65-69.
[4]姜峰,索忠源,王德禹,等.不同Sr含量变质对A356合金组织及力学性能的影响[J].铸造,2018,67(11):1012-1015.
[5]曾耀华,陈宗宁,康慧君,等.Sb对A356合金组织和力学性能的影响及变质机理[J].特种铸造及有色合金,2017,37(10):1139-1142.
[6]SHABESTARI S G,MOEMENI H.Effect of copper and solidification conditions on the microstructure and mechanical properties of Al-Si-M g alloys[J].Journal of M aterials Processing Technlogy,2004,153(10):193-198.
[7]朱志华,马路路,刘华,等.Cu对稀土A356合金组织及力学性能的影响[J].特种铸造及有色合金,2017,37(6):683-686.
[8]夏峰,梁民宪,郭永春,等.微量锆对铸态A356铝合金组织和性能的影响[J].铸造,2017,66(11):1155-1158.
[9]LI B,WANG H W,JIN J J,et al.Effects of yttrium and heat treatment on the microstructure and tensile properties of Al-7.5Si-0.5M g alloy[J].M aterials and Design,2011(32):1617-1622.
[10]邓月华,朱志华,刘华,等.稀土Y对AlSi7Mg0.3合金组织和力学性能的影响[J].稀有金属与硬质合金,2018,46(1):36-39.
[11]MAO F,YAN G Y,XUAN Z J,et al.Effect of Eu addition on the microstructures and mechanical properties of A356aluminum alloys[J].Journal of Alloys and Compounds,2015,650:896-900.
[12]PRAMOD S L,PRASAD R A K,MURTY B S,et al.Effect of Sc addition on the microstructure and w ear properties of A356alloy and A356-TiB2in situ composite[J].M aterials&Design,2015,78:85-94.
[13]黄吉,程和法,杜承信,等.Sc对A356合金组织和性能的影响[J].特种铸造及有色合金,2015,35(12):1318-1321.
[14]WATTANACHAI P,NAKORN S,CHAOWALIT L.Modification of hypoeutectic Al-Si alloys w ith scandium[J].Journal of Alloys and Compounds,2009,477:454-460.
[15]ZHANG W D,LIU Y,YANG J,et al.Effects of Sc content on the microstructure of As-Cast Al-7 w t.%Si alloys[J].M aterials Characterization,2012,66:104-110.
[16]PUPARATTANAPONG K,PANDEE P,BOONTEIN S,et al.Fluidity and hot cracking susceptibility of A356 alloys w ith Sc additions[J].Transactions of the Indian Institute of M etals,2018,71(7):1583-1593.
[17]李俊颀,毛丰,闫光远,等.稀土Er对A356合金组织与性能的影响[J].特种铸造及有色合金2018,38(3):312-315.
[18]李晓燕,卢雅琳,王健,等.稀土Er对A356铝合金微观组织和力学性能的影响[J].材料工程,2018,46(1):67-73.
[19]PANDEE P,PATAKHAM U,LIMMANEEVICHITR C.Microstructural evolution and mechanical properties of Al-7Si-0.3M g alloys w ith erbium additions[J].Journal of Alloys and Compounds,2017,728:844-853.
[20]QIU H X,YAN H,HU Z.Effect of samarium(Sm)addition on the microstructures and mechanical properties of Al-7Si-0.7Mg alloys[J].Journal of Alloys and Compounds,2013,567:77-81.
[21]TANG Q,ZHAO J H,WANG T,et al.The effects of neodymium addition on the intermetallic microstructure and mechanical properties of Al-7Si-0.3M g-0.3Fe alloys[J].Journal of Alloys and Compounds,2018,741:161-173.
[22]TSAI Y C,CHENG C Y,LEE S L,et al.Effects of trace La addition on the microstructures and mechanical properties of A356(Al-7Si-0.35M g)aluminum alloys[J].Journal of Alloys and Compounds,2009,487:157-162.
[23]李豹.AlSi7Mg合金共晶硅变质规律及其微观机制[D].哈尔滨:哈尔滨工业大学,2011.
[24]何兵,覃铭,黄蓓,等.Sc和Y复合作用对A356合金组织和性能的影响[J].特种铸造及有色合金,2017,37(12):1385-1389.
[25]ZHANG S C,LENG J F,WANG Z B.Investigation on the modification behavior of A356.2 alloy w ith Yb-La composite modifier[J].M aterials Research Express,2018,5:016520.
[26]何斌锋,米国发.变质处理对A356合金性能的影响[J].金属铸锻焊技术,2012,41(15):12-15.
[27]LIU W Y,XIAO W L,XU C,et al.Synergistic effects of Gd and Zr on grain refinement and eutectic Si modification of Al-Si cast alloy[J].M aterials Science and Engineering A-Structural M eterials Properties M icrostructure and Processing,2017,693:93-100.
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[29]沈小岑.稀土Sc及微量元素复合添加对A356/7合金微观组织与力学性能的影响[D].天津:天津大学,2016.
[30]王爽.柴油机用Cu、Cr改性A356铸铝合金时效工艺研究[D].济南:山东大学,2018.