崔云峰,刘冀尧,王丽娟,刘正红,王文焱,谢敬佩,郭清远

• 1:河南科技大学材料科学与工程学院
• 2:洛阳理工学院
• 3:洛阳双瑞万基钛业有限公司
• 4:中国船舶集团有限公司第七二五研究所(洛阳船舶材料研究所)

摘要(Abstract)：

采用粉末冶金法制备了Ti-6Al-4V-1.5Mn-xLa (x=1、1.5、2和2.5,mass%)合金，利用光学显微镜(OM)、X射线衍射仪(XRD)、扫描电镜(SEM)和电子万能试验机等研究了合金经固溶时效处理后的微观组织和性能。结果表明：添加稀土元素La后，Ti-6Al-4V-1.5Mn合金的组织出现了明显的细化现象，组织中存在弥散分布的稀土氧化物La_2O_3,对基体起到弥散强化的作用。随稀土元素La含量的增加，合金的抗拉强度和伸长率先增加后降低，当La元素含量为2%时，合金的抗拉强度和伸长率最佳，拉伸断口为准解理断裂。

关键词(KeyWords)： Ti-6Al-4V-1.5Mn合金;La;抗拉强度;弥散强化

Abstract:

Keywords:

基金项目(Foundation): 河南省科技攻关项目(192102210008);; 河南省高等学校重点科研项目(21A430016);; 郑洛新国家自主创新示范区创新引领型产业集群专项(201200211000)

作者(Author): 崔云峰,刘冀尧,王丽娟,刘正红,王文焱,谢敬佩,郭清远

DOI: 10.13289/j.issn.1009-6264.2023-0558

参考文献(References)：

• [1] 王湘宁，朱郎平，余稳，等.TiAl合金粉末热等静压技术研究进展[J].稀有金属材料与工程，2021,50(10):3797-3808.WANG Xiang-ning,ZHU Lang-ping,YU Wen,et al.Research progress on hot isostatic pressing technology of TiAl alloy powder[J].Rare Metal Materials and Engineering,2021,50(10):3797-3808.
• [2] Huang P Y.Powder Metallurgy Principle[M].Beijing:Metallurgical Industry Press,2004.
• [3] 刘世锋，宋玺，薛彤，等.钛合金及钛基复合材料在航空航天的应用和发展[J].航空材料学报，2020,40(3):77-94.LIU Shi-feng,SONG Xi,XUE Tong,et al.Application and development of titanium alloy and titanium matrix composites in aerospace[J].Journal of Aeronautical Metals,2020,40(3):77-94.
• [4] Guo W,Sun M,Qiu R,et al.Research progress on corrosion and aging of materials in deep-sea environment[J].Corrosion Science & Protection Technology,2017,24(8):125-135.
• [5] 吕冬兰.钛合金在民用飞机上的应用及发展趋势[J].世界有色金属，2018(5):230-231.Lü Dong-lan.Application and development trend of titanium alloy in civil aircraft[J].World Nonferrous Metals,2018(5):230-231.
• [6] 李毅，赵永庆，曾卫东.航空钛合金的应用及发展趋势[J].材料导报，2020,34(S1):280-282.LI Yi,ZHAO Yong-qing,ZENG Wei-dong.Application and development of aerial titanium alloys[J].Materials Reports,2020,34(S1):280-282.
• [7] 郭雷明，王文焱，谢敬佩，等.Si元素对Ti-6Al-4V合金组织与性能的影响[J].塑性工程学报，2019,26(6):148-156.GUO Lei-ming,WANG Wen-yan,XIE Jing-pei,et al.Effect of Si on microstructure and properties of Ti-6Al-4V alloy[J].Journal of Plasticity Engineering,2019,26(6):148-156.
• [8] 徐坚，王文焱，张豪胤，等.元素Cr对粉末冶金Ti-6Al-4V合金组织与性能的影响[J].粉末冶金工业，2014,24(6):11-15.XU Jian,WANG Wen-yan,ZHANG Hao-yin,et al.Effects of Cr addition on microstructure and mechanical properties of powder metallurgy Ti-6Al-4V alloy[J].Powder Metallurgy Industry,2014,24(6):11-15.
• [9] 黄文君，王文焱，史士钦，等.Mo含量对粉末烧结Ti-6Al-4V-2Cr合金组织和力学性能的影响[J].特种铸造及有色合金，2017,37(5):568-571.HUANG Wen-jun,WANG Wen-yan,SHI Shi-qin,et al.Effects of Mo addition on microstructure and mechanical properties of powder metallurgy Ti-6Al-4V alloy[J].Special Casting & Nonferrous Alloys,2017,37(5):568-571.
• [10] 张豪胤，王文焱，祝要民，等.固溶、时效对TC4钛合金组织和力学性能的影响[J].特种铸造及有色合金，2014,34(6):659-661.ZHANG Hao-yin,WANG Wen-yan,ZHU Yao-min,et al.Effect of solution aging on microstructure and mechanical properties of TC4 alloy[J].Special Casting & Nonferrous Alloys,2014,34(6):659-661.
• [11] 张顺利，董洁，黄德超，等.热处理对TC11钛合金薄壁环材室温力学性能的影响[J].钛工业进展，2012,29(4):23-25.ZHANG Shun-li,DONG Jie,HUANG De-chao,et al.Effect of heat treatment on mechanical properties of thin-walled ring TC11 titanium alloy at room temperature[J].Progress of Titanium Industry,2012,29(4):23-25.
• [12] 王萌.电子束冷床炉熔炼TC4钛合金开坯轧制工艺与力学性能研究[D].西安：西安建筑科技大学，2021.WANG Meng.Study on rolling process and mechanical properties of electron beam cold bed furnace melting TC4 titanium alloy[D].Xi’an:Xi’an University of Architecture and Technology,2021.
• [13] 张辉，赵亚斌，潘爱琼.粉末冶金法制备细晶TC4钛合金的微观组织与力学性能[J].粉末冶金工业，2021,31(5):66-70.ZHANG Hui,ZHAO Ya-bin,PAN Ai-qiong.Microstructure and mechanical properties of fine-grained TC4 alloy prepared by powder metallurgy[J].Powder Metallurgy Industry,2021,31(5):66-70.
• [14] Majumdar S,Sharma I G,Samajdar I,et al.Preparation of Mo-Ti-Zr-C alloy tube by P/M route[J].Nuclear Engineering and Design,2010,240(5):975-979.
• [15] Yoshimura T,Imai H,Threrujirapapong T,et al.Cost effective pure titanium with high mechanical response by oxide dispersion strengthening[J].Materials Transactions,2009,50(12):2751-2756.
• [16] Ivasishin O M.Cost-effective manufacturing of titanium parts with powder metallurgy approach[C]//Materials Forum.Institution of Engineers Australia,2005,29:1-8.
• [17] Bolzoni L,Herraiz E,Ruiz-Navas E M,et al.Development of low-cost powder metallurgy titanium alloys by addtion of commercial 430 stainless steel powder[C]//TMS2014:143rd Annual Meeting&Exhibition,Annual Meeting Supplemental Proceedings.San Diego:Springer International Publishing,2014:597-604.
• [18] Choe H,Abkowitz S,Abkowitz S M.Influence of processingon the mechanical properties of Ti-6Al-4V-based composites reinforced with 7.5 mass% TiC and 7.5 mass% W[J].Materials Transactions,2008,49(9):2153-2158.
• [19] Bolzoni L,Ruiz-Navas E M,Gordo E.Powder metallurgy CP-Ti performances:Hydridedehydride vs.sponge[J].Materials and Design,2014,60(11):226-232.
• [20] 李圣刚，吕宏军.Ti-6Al-2Zr-1Mo-1V 合金粉末冶金工艺[J].宇航材料工艺，2007(6):74-76.LI Sheng-gang,Lü Hong-jun.Ti-6Al-2Zr-1Mo-1V alloy powder metallurgy process[J].Aerospace Materials and Technology,2007(6):74-76.
• [21] 汤慧萍.粉末冶金Ti-NdAl合金烧结行为及组织性能的研究[J].稀有金属材料与工程，2004,33(12):1270-1273.TANG Hui-ping.Study on sintering behavior and microstructure properties of Ti-NdAl alloy[J].Rare Metal Materials and Engineering,2004,33(12):1270-1273.
• [22] Castro V D,Leguey T,Munoz A,et al.Microstructure and tensile properties of Y2O3-dispersed titanium produced by arc melting[J].Materials Science and Engineering A,2006,422(1/2):189-197.
• [23] Yang Z F,Lu W J,Qin J N,et al.Microstructure and tensile properties of in situ synthesized (TiC+TiB+Nd2O3)/Ti-alloy composites at elevated temperature[J].Materials Science and Engineering A,2006,425(1/2):185-191.
• [24] Xiao L,Lu W J,Qin J N,et al.Steady state creep of in situ TiB plus La2O3 reinforced high temperature titanium matrix composite[J].Materials Science and Engineering A,2009,499(1/2):500-506.
• [25] Wu Y,Hwang S K.Microstructural refinement and improvement of mechanical properties and oxidation resistance in EPM TiAl-based intermetallics with yttrium addition[J].Acta Materialia,2002,50:1479-1493.
• [26] Hotta S,Yamadak,Murakami T,et al.β grain refinement due to small amounts of yttrium addition in α+β type titanium alloy,SP-700[J].ISIJ International,2006,46(1):129-137.
• [27] Liu Y,Chen L F,Wei W F,et al.Improvement of ductility of powder metallurgy titanium alloys by addition of rare earth element[J].Journal of Materials Science and Technology,2006,22(4):465-469.
• [28] 王文焱，黄文君，邵昌，等.添加 Nd 元素对 Ti-6Al-4V-2Cr 合金组织细化的影响[J].粉末冶金材料科学与工程，2016,21(5):760-766.WANG Wen-yan,HUANG Wen-jun,SHAO Chang,et al.Effect of addition of Nd element on microstructure refinement of Ti-6Al-4V-2Cr alloy[J].Materials Science and Engineering of Powder Metallurgy,2016,21(5):760-766.
• [29] Bramfitt B L.The effect of carbide and nitride additions on the heterogeneous nucleation behavior of liquid iron[J].Metallurgical Transactions,1970,1:1987-1995.
• [30] 赵永庆，陈永楠，张学敏，等.钛合金相变及热处理[M].长沙：中南大学出版社，2012.ZHAO Yong-qing,CHEN Yong-nan,ZHANG Xue-min,et al.Phase Transformation and Heat Treatment of Titanium Alloy[M].Changsha:Central South University Press,2012.

文章评论(Comment)：