热处理工艺对Ti6246钛合金组织与力学性能的影响

doi:10.11901/1005.3093.2016.621

材料研究学报

2017, Vol. 31

Issue (5): 352-358 DOI: 10.11901/1005.3093.2016.621

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热处理工艺对Ti6246钛合金组织与力学性能的影响

王国强^1,², 赵子博²(

), 于冰冰², 陈志勇², 王清江², 杨锐²

1 中国科学技术大学材料科学与工程学院合肥 230026
2 中国科学院金属研究所沈阳 110016

Effect of Heat Treatment Process on Microstructure and Mechanical Properties of Titanium Alloy Ti6246

Guoqiang WANG^1,², Zibo ZHAO²(

), Bingbing YU², Zhiyong CHEN², Qingjiang WANG², Rui YANG²

1 School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
2 Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

引用本文:

王国强, 赵子博, 于冰冰, 陈志勇, 王清江, 杨锐. 热处理工艺对Ti6246钛合金组织与力学性能的影响[J]. 材料研究学报, 2017, 31(5): 352-358.
Guoqiang WANG, Zibo ZHAO, Bingbing YU, Zhiyong CHEN, Qingjiang WANG, Rui YANG. Effect of Heat Treatment Process on Microstructure and Mechanical Properties of Titanium Alloy Ti6246[J]. Chinese Journal of Materials Research, 2017, 31(5): 352-358.

全文: PDF(4841 KB) HTML

摘要:

研究了热处理温度和冷却方式对Ti6246合金显微组织、相组成以及室温拉伸性能的影响。结果表明：固溶热处理后合金的相组成主要与冷却方式有关。在β单相区及(α+β)两相区固溶后水冷,β相均转化为α′′马氏体和少量亚稳β相。空冷组织中的β相转变为含有少量次生α相的β转变组织,随着热处理温度的提高次生α相的含量逐渐增加,尺寸也逐渐增大。时效后组织中的亚稳相发生分解,析出细小的次生α相。固溶后水冷试样的拉伸曲线上出现“双屈服”现象,且随着固溶温度的提高合金第一屈服点逐渐升高。水淬和空冷合金试样在595℃/8 h时效后其室温拉伸强度提高,延伸率及断面收缩率降低,水淬试样室温拉伸性能的变化更大。固溶后空冷且在595℃时效处理的合金,其室温拉伸性能可达到较好的强塑性匹配。

关键词 ：金属材料, Ti6246合金, 热处理, 冷却速率, α′′马氏体, 拉伸性能

Abstract：

The influence of heat treatment temperature and cooling rate on the microstructure, phase and tensile deformation behavior of Ti-alloy Ti6246 alloy was investigated. The results show that the α′′ martensite was observed in prior β phase after solution heat treatment followed by water quenching. While a fine transformed β microstructure produced as a result of air cooling. For the air cooling alloy, both the size and volume fraction of the secondary α grain increased with the increasing solution heat temperature in air cooling samples. A “double yield” phenomenon appeared in the engineering stress-strain curves of the water quenching alloy samples. After aging treatment, the strength of water- and air-cooled alloys samples increased but the plasticity decreased. An optimal property in strength and ductility was achieved for the alloysamples after soluted solution treated at 900-920°C and then aged at 595°C.

Key words： metallic materials Ti6246 alloy heat treatment cooling rate α′′ martensite tensile properties

收稿日期: 2016-10-24

作者简介:

作者简介王国强,男,1984年生,博士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2016.621 或 https://www.cjmr.org/CN/Y2017/V31/I5/352

表1 Ti6246合金化学成分(%, 质量分数)

图1 Ti6246合金的锻态组织

图2 Ti6246合金在900℃固溶处理后的显微组织

图3 Ti6246合金920℃不同热处理制度下的显微组织

图4 Ti6246合金950℃不同热处理制度下的显微组织

图5 Ti6246合金920℃热处理制度下的X射线衍射图谱

图6 Ti6246合金水淬后的X射线衍射图谱

图7 不同热处理制度Ti6246合金的工程应力-应变曲线

表2 Ti-6246合金经不同制度热处理后的室温拉伸性能

[1]	Wang G, Hui S X, Ye W J, et al.Influence of solution treatment on microstructure and mechanical properties of Ti-3.0Al-2.3Cr-1.3Fe titanium alloy[J]. Chin. J. Nonferrous Met.,2012, 22(11): 3015(王国, 惠松骁, 叶文君等. 固溶处理对Ti-3.0Al-2.3Cr-1.3Fe钛合金组织与力学性能的影响[J]. 中国有色金属学报, 2012, 22(11): 3015)
[2]	Davis R, Flower H M, West D R F, Martensitic transformations in Ti-Mo alloys[J]. J. Mater. Sci.,1979, 14(3): 712
[3]	Li C F.Study on β→α″ Transformation in Ti-(3.5-4.5)Al-(3.5-5.5)Mo Titanium Alloys [D]. Shenyang: Institute of Metal Research, Chinese Academy of Sciences, 2012(李长富. Ti-(3.5-4.5)Al-(3.5-5.5)Mo钛合金中β→α″马氏体相变研究 [D]. 沈阳: 中国科学院金属研究所, 2012)
[4]	Li C L, Hui S X, Ye W J, et al.Effect of aging on microstructure and tensile properties of Ti-6Cr-5Mo-5V-4Al alloy[J]. Rare Metals, 2011, 35(01): 22(李成林,惠松骁,叶文君等. 时效对Ti-6Cr-5Mo-5V-4Al合金组织与拉伸性能的影响[J]. 稀有金属, 2011, 35(01): 22)
[5]	Boyer R, Welsch G, Collings E W, Materials Properties Handbook: Titanium Alloys[M]. American: ASM International, 1994
[6]	Lütjering G, Williams J C, Titanium[M]. Berlin: Springer, 2007
[7]	Evans W J, Jones J P, Williams S, The interactions between fatigue, creep and environmental damage in Ti 6246 and Udimet 720Li[J]. In. J. Fatigue., 2005, 27(10): 1473
[8]	Wang Q J, Liu J R, Yang R.High temperature titanium alloys: status and perspective[J]. J. Aero. Mater., 2014, 34(04): 1(王清江, 刘建荣, 杨锐. 高温钛合金的现状与前景. 航空材料学报, 2014, 34(4): 1)
[9]	Zhang X Y, Zhao Y Q, Bai C G.Titanium alloy and Application [M]. Beijing: Chemical Industry Press, 2005(张喜燕, 赵永庆, 白晨光. 钛合金及应用[M]. 北京: 化学工业出版社, 2005)
[10]	Xu G D, Wang F E.Development and application on high-temperature ti-based alloys[J]. Rare Metals, 2008, 32(06): 774(许国栋, 王凤娥, 高温钛合金的发展和应用[J]. 稀有金属, 2008, 32(6): 774)
[11]	Mao X N, Zhao Y Q, Yang G J.Development situation of the overseas titanium alloys used for aircraft engine[J]. Rare Metals Lett., 2007, 26(05): 1(毛小南, 赵永庆, 杨冠军. 国外航空发动机用钛合金的发展现状[J]. 稀有金属快报, 2007, 6(5): 1)
[12]	Lei J W, Tian Y, Lai Y J, et at. Effects of solution temperature on microstructure and mechanical properties of Ti6246 titanium alloy[J]. Heat Treat. Metal, 2015, 40(3): 133(雷锦文, 田云, 赖运金等. 固溶温度对Ti6246钛合金组织与性能的影响[J]. 金属热处理, 2015, 40(3): 133)
[13]	Stella P, Giovanetti I, Masi G, et al.Microstructure and microhardness of heat-treated Ti-6Al-2Sn-4Zr-6Mo alloy[J]. J. Alloys Compd. 2013, 567(0): 134
[14]	Spurling R A, Rhodes C G, Williams J C, The microstructure of Ti alloys as influenced by Thin-foil artifacts[J]. Metall. Mater. Trans. B, 1974,5(12): 2597
[15]	Bophcoba Е A. Chen S Q.Transl. Metallography of Titanium Alloy [M]. Beijing: National Defense Industry Press, 1986(E. A.鲍利索娃. 陈石卿译. 钛合金金相学 [M]. 北京: 国防工业出版社, 1986)
[16]	Ishiyama S, Hanada S, Izumi O.Effect of Zr, Sn and Al additions on deformation mode and beta phase stability of metastable beta Ti alloys[J]. ISIJ Int., 1991, 31(8): 807
[17]	Zhang D C, Yang S, Wei M, Mao Y F, et al.Effect of Sn addition on the microstructure and superelasticity in Ti-Nb-Mo-Sn Alloys[J]. J. Mech. Behav. Biomed. Mater., 2012, 13(13): 156
[18]	Zhang D C, Mao Y F, Li Y L, et al.Effect of ternary alloying elements on microstructure and superelastictity of Ti-Nb alloys[J]. Mater. Sci. Eng. A, 2013, 559(3): 706
[19]	Paradkar A G, Kamat S V, Gogia A K, et al.Various stages in stress-strain curve of Ti-Al-Nb alloys undergoing SIMT[J]. Mater. Sci. Eng. A, 2007, 456(1-2): 292
[20]	Kamat S V, Gogia A K, Kashyap B P.Effect of Al and Nb on the trigger stress for stress-induced martensitic transformation during tensile loading in Ti-Al-Nb alloys[J]. Mater. Sci. Eng. A, 2008, 487(1-2): 14
[21]	Li S J, Cui T C, Hao Y L, et al.Fatigue properties of a metastable beta-type titanium alloy with reversible phase transformation[J]. Acta Biomate., 2008, 4(2): 305

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