李沛南,梁艳峰,郭永春,杨忠,于阳

• 1:西安工业大学材料与化工学院
• 2:西安向阳航天材料股份有限公司

摘要(Abstract)：

采用熔体接触反应法铸造了原位TiAl_3/Al-12Si复合材料,研究了引入不同Ti源(Ti粉、海绵钛颗粒)作为原位反应体系对Al-12Si复合材料中原位TiAl_3相形貌的影响。结果表明:当Ti粉作为原位反应体系参与反应时,生成的TiAl_3相形貌多为针状,横向尺寸约2μm,纵向尺寸为10～150μm,随着加入Ti粉量增加,TiAl_3长径比呈减小趋势;当海绵钛作为原位反应体系参与反应时,生成的TiAl_3相形貌为针状、板片状、块状等,横向尺寸为2～10μm,纵向尺寸为50～300μm,随着海绵钛添加量增加,TiAl_3长径比减小;部分原位生成的Al-Ti间金属化合物为Si原子固溶于TiAl_3中形成的TiAlSi三元相。

关键词(KeyWords)： Al-Si基复合材料;原位生成;长径比;微观组织

Abstract:

Keywords:

基金项目(Foundation): 装备预研领域基金重点项目(6140922010301);; 陕西省创新人才推进计划-科技创新团队(2017KCT-05);; 陕西省重点研发计划-工业领域项目(2018GY-111)

作者(Author): 李沛南,梁艳峰,郭永春,杨忠,于阳

DOI: 10.13289/j.issn.1009-6264.2019-0347

参考文献(References)：

• [1] 左强,洪润洲,周永江,等.原位合成铝基复合材料的制备方法研究进展[J].热加工工艺,2017,46(24):33-36.ZUO Qiang,HONG Run-zhou,ZHOU Yong-jiang,et al.Research progress of preparation methods of aluminum matrix composite material by situ synthesis[J].Hot Working Technology,2017,46(24):33-36.
• [2] 胡保全,牛昔川.先进复合材料[M].北京:国防工业出版社,2013.
• [3] 吴孝泉,罗达,胡志.TiAl3金属间化合物的形貌控制及其研究进展[J].热加工工艺,2016,45(20):20-22.WU Xiao-quan,LUO Da,HU Zhi.Morphological control and research progress of TiAl3 intermetallics[J].Hot Working Technology,2016,45(20):20-22.
• [4] Barlow I C,Jones H,Rainforth W M.The effect of heat treatment at 500-650 ℃ on the microstructure and properties of machanically alloyed Al-Ti-O based material[J].Materials Science and Engineering A,2003,(351):344-357.
• [5] Saheb N,Dauda T,Daud A R,et al.Influence of Ti addition on wear properties of Al-Si eutectic alloys[J].Wear,2001(249):656-662.
• [6] 赵丹.TiAl3/7050Al复合材料的原位制备及性能研究[D].哈尔滨:哈尔滨工业大学,2016.ZHAO Dan.Reseach on in-situ preparations and properity of TiAl3/7050Al composites[D].Harbin:Harbin Institute of Technology,2016.
• [7] Hsu C J,Chang C Y,Kao P W,et al.Al-Al3Ti nanocomposites produced in-situ by friction stir processing[J].Acta Materialia,2006,54(19):5241-5249.
• [8] 王洪涛,陈枭,白小波,等.原位自生TiAl3增强Al基复合材料的组织结构及形成机理[J].稀有金属材料与工程,2016,45(4):1082-1087.WANG Hong-tao,CHEN Xiao,BAI Xiao-bo,et al.Microstructure and formation mechanism of Al matrix composite reinforced with in-situ TiAl3 intermetallic particles[J].Rare Metal Materials and Engineering,2016,45(4):1082-1087.
• [9] Zeren M,Karakulak E.Microstructural chracterisation of Al-Si-xTi cast alloys[J].Materials Science and Technology,2009,25(10):1211-1214.
• [10] Gao T,Li P T,Li Y G,et al.Influence of Si and Ti contents on the microstructure,microhardness and performance of TiAlSi intermetallics in Al-Si-Ti alloys[J].Journal of Alloys and Compounds,2011,509(31):8013-8017.
• [11] Chena X G,Fortier M.TiAlSi intermetallic formation and its impact on the casting processing in Al-Si alloys[J].Journal of Materials Processing Technology,2010,210(13),1780-1786.
• [12] Zeren M,Karakulak E.Microstructural chracterisation of Al-Si-xTi cast alloys[J].Materials Science and Technology,2009,25(10):1211-1214.
• [13] 祝国梁,疏达,戴永兵,等.Si在TiAl3中取代行为的第一性原理研究[J].物理学报,2009,58:210-215.ZHU Guo-liang,SHU Da,DAI Yong-bing,et al.First principles study on substitution behaviour of Si in TiAl3[J].Acta Physica Sinica,2009,58(S1):210-215.
• [14] 尹洪峰,魏剑.复合材料[M].北京:冶金工业出版社,2013.
• [15] 赵建华,何建生,李璞,等.冷却速度和氟盐比例对Al-4Ti中间合金中TiAl3形貌演变规律研究[J].功能材料,2017,48(3):3127-3132.ZHAO Jian-hua,HE Jian-sheng,LI Pu,et al.Effect of cooling rate and the proportion of fluorides on morphology evolution of TiAl3 in Al-4Ti master alloy[J].Jorunal of Functional Materials,2017,48(3):3127-3132.
• [16] 高通,刘相法.Al-18Si-5Ti合金中TiAlSi金属间化合物的形成[J].精密成形工程,2017,9(5):50-56.GAO Tong,LIU Xiang-fa.Forming of TiAlSi intermetallics in Al-18Si-5Ti alloys[J].Journal of Netshape Forming Engineering,2017,9(5):50-56.
• [17] 朱涛,沈军.钛铝相图亚稳相的研究进展[J].金属功能材料,2017,24(4):58-62.ZHU Tao,SHEN Jun.Research progress of metastable phase in TiAl phase diagram[J].Metallic Functional Materials,2017,24(4):58-62.

文章评论(Comment)：