张楠,李振华,姜训勇,刘庆锁,胡景奕

• 1:天津理工大学材料科学与工程学院
• 2:中色(天津)特种材料有限公司

摘要(Abstract)：

研究了Cu-Ti合金中Ti含量对其淬火和时效过程的影响。结果表明:具有时效强化效果的Cu-Ti合金的Ti含量要高于0.6%。液氮固溶淬火可以抑制过饱和Cu-Ti固溶体的早期分解。Ti含量达到5%时,其铸态、固溶淬火态、时效态硬度比含Ti量在0.6%~4%之间的Cu-Ti合金要有较大的提升。Cu-Ti合金在450℃时效时随着时效时间的延长硬度均出现了双峰现象。时效3 h后出现一个小的硬度峰,时效10 h后合金硬度达到最高值。继续延长时效时间,合金硬度下降。

关键词(KeyWords)： Cu-Ti合金;时效;硬度;成分

Abstract:

Keywords:

基金项目(Foundation): 教育部大学生创新创业计划

作者(Author): 张楠,李振华,姜训勇,刘庆锁,胡景奕

DOI: 10.13289/j.issn.1009-6264.2016.03.007

参考文献(References)：

• [1]彭丽军,熊柏青,解国良,等.C17200合金时效早期相变行为[J].材料热处理学报,2013,34(8):42-46.PENG Li-jun,XIONG Bai-qing,XIE Guo-liang,et al.Transformation of early stage of aging in C17200 alloy[J].Transactions of Materials and Heat Treatment,2013,34(8):42-46.
• [2]Soffa W A,Laughlin D E.High-strength age hardening copper-titanium alloys:redivivus[J].Progress in Materials Science,2004,49(3/4):347-366.
• [3]Cao Xingmin,Zhu Yubin,Guo Fuan.Hot deformation behavior and microstructure of Cu-Ti alloy[J].Rare Metal Materials and Engineering,2009,38:509-514.
• [4]Doi T.On the structure changes produced by ageing of Cu-Ti alloy[J].Acta Metallurgica,1959,7(4):291-292.
• [5]Krull W E,Starke Jr E A,Newman R W.Decomposition and accompanying strengthening effects of a supersaturated Cu-6 at.%Ti alloy[J].Materials Science and Engineering,1972,9:211-216.
• [6]Laughlin D E,Cahn J W.Spinodal decomposition in age hardening copper-titanium alloys[J].Acta Metallurgica,1975,23(3):329-339.
• [7]Datta A,Soffa W A.The structure and properties of age hardened Cu-Ti alloys[J].Acta Metallurgica,1976,24(11):987-1001.
• [8]Greggl J,Soffa W A.The Strengthening and Plastic Properties of Copper Titanium Alloy Single Crystals[C]//in Strength of Metals and Alloys,P.H.Gerold and G.Kostorz,Editors.Pergamon,1979:651-656.
• [9]Sinning H R,Haasen P.The fatigue behaviour of spinodally decomposed Cu-4at%Ti single crystals[J].Scripta Metallurgica,1981,15(1):85-90.
• [10]卫英慧,王笑天.Cu-Ti合金时效早期相变规律的研究[J].电子显微学报,1997(2):40-45.WEI Ying-hui,WANG Xiao-tian.Investigation on transformation of the early stage of aging in Cu-Ti alloy[J].Journal of Chinese Microscopy Cociety,1997(2):40-45.
• [11]Hernandez-Santiago,Lopez-Hirata F,Victor M,et al.Gibbs-Thomson relationship for the precipitation in Cu-Ti alloys[J].Materials Characterization,2007,58(3):303-306.
• [12]Semboshi S,Ishikuro Mikio,Sato Shigeo,et al.Extraction of precipitates from age-hardenable Cu-Ti alloys[J].Materials Characterization,2013,82:23-31.
• [13]Semboshi S,Hinamoto E,Iwase A.Age-hardening behavior of a single-crystal Cu-Ti alloy[J].Materials Letters,2014,131:90-93.
• [14]曹兴民,朱玉斌,郭富安,等.Cu-Ti合金的热变形行为及其组织研究[J].稀有金属材料与工程,2009(S1):509-514.CAO Xing-min,ZHU Yu-bin,GUO Fu-an,et al.Hot deformation behavior and microstructure of Cu-Ti alloy[J].Rare Metal Materials and Engineering,2009(S1):509-514.
• [15]Doi H,Suzuki S,Mimura K,et al.Electrical conductivitiy and hardness of quenched and aged high-purity Cu-Ti-Al alloys[J].Journal of the Japan Institute of Metals,2004,68(2):78-81.
• [16]曹兴民,李华涛,向朝建,等.Zr的加入对Cu-Ti合金耐热性能影响的研究[J].热加工工艺,2008(14):16-18.CAO Xing-min,LI Hua-tao,XIANG Chao-jian,et al.Effect of Zr on heat-resistance of Cu-Ti alloy[J].Hot Working Technology,2008(14):16-18.
• [17]Nagarjuna S,Babu U C,Ghosal P.Effect of cryo-rolling on age hardening of Cu-1.5Ti alloy[J].Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2008,491(1/2):331-337.
• [18]Semboshi S,Al-Kassab Talaat,Gemma Ryota,et al.Microstructural evolution of Cu-1 at%Ti alloy aged in a hydrogen atmosphere and its relation with the electrical conductivity[J].Ultramicroscopy,2009,109(5):593-598.
• [19]Semboshi S,Konno T J.Effect of aging in hydrogen atmosphere on electrical conductivity of Cu-3at.%Ti alloy[J].Journal of Materials Research,2008,23(2):473-477.
• [20]Semboshi S,Nishida T,Numakura H.Microstructure and mechanical properties of Cu-3 at.%Ti alloy aged in a hydrogen atmosphere[J].Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2009,517(1/2):105-113.

文章评论(Comment)：