固溶时效处理对高强高韧钛合金显微组织与力学性能的影响

夏晓洁; 吴国清; 黄正; 李志燕

doi:10.13700/j.bh.1001-5965.2014.0517

固溶时效处理对高强高韧钛合金显微组织与力学性能的影响

doi: 10.13700/j.bh.1001-5965.2014.0517

夏晓洁^1,2,
吴国清^2, ,,
黄正²,
李志燕³

1.
上海飞机设计研究院, 上海 201210
2. 北京航空航天大学材料科学与工程学院, 北京 100191
3. 北京航空材料研究院, 北京 100095

基金项目: 航空科学基金(2012ZEL056); 教育部长江学者和创新团队发展计划(IRT0805)

详细信息

作者简介:
夏晓洁(1989—),女,湖北荆州人,硕士研究生,xxj_beijing@126.com

通讯作者:
吴国清(1974—),男,山东临沂人,副教授,guoqingwu@buaa.edu.cn,主要研究方向为轻质合金及复合材料设计与成型技术.

中图分类号: TG146.23
计量
- 文章访问数: 1217
- HTML全文浏览量: 82
- PDF下载量: 600
- 被引次数: 0
出版历程
- 收稿日期: 2014-08-21
- 修回日期: 2014-09-19
- 网络出版日期: 2015-07-20

Effects of solution-aging treatment on microstructure and mechanical properties of a high-strength and high-toughness titanium alloy

1.
Shanghai Aircraft Design and Research Institute, Shanghai 201210, China
2. School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
3. Beijing Institute of Aeronautical Materials, Beijing 100095, China

摘要

摘要: 对固溶时效处理后的高强高韧钛合金初生α相的体积分数、尺寸,次生α相的体积分数和α_s/β相界面密度等显微组织特征进行了定量表征和统计分析,探讨了随着固溶温度的变化,高强高韧钛合金显微组织与其力学性能间的相关性.结果表明:在α+β两相区固溶时效处理,随着固溶温度的升高,合金初生α相的体积分数降低,相尺寸先降低后略有升高,次生α相的体积分数升高,α_s/β相界面密度先升高后降低.初生α相的体积分数与伸长率、静力韧度和裂纹形成功正相关,α_s/β相界面密度与合金屈服强度成正相关.
- 近β钛合金 /
- 固溶时效 /
- 显微组织 /
- 力学性能 /
- 量化分析
Abstract: Solution-aging treatment was performed to a high-strength and high-toughness titanium alloy. Several microstructural feature including volume fraction of primary α phase, size factor of primary α phase, volume fraction of secondary α phase, α_s/β interface density, were quantitatively characterized. By making a statistical analysis of the microstructure characteristics, the relationship between microstructure features and mechanical properties of the high-strength and high-toughness titanium alloy was investigated as solution temperature changed. The results show that with the increase of solution temperature in α+β phase, the volume fraction of primary α phase decreases, the size factor of primary α phase firstly decreases and then increases, volume fraction of secondary α phase increases, and the α_s/β interface density increases and then decreases. The elongation, static toughness and crack initiation energy increase with the growth of the volume fraction of primary α phase. And yield strength is positively correlated with the α_s/β interface density.
- near β titanium alloy /
- solution-aging treatment /
- microstructure /
- mechanical properties /
- quantified analysis

HTML全文

参考文献(14)

[1]	Boyer R R, Briggs R D.The use of β titanium alloys in the aerospace industry[J].Journal of Materials Engineering and Performance, 2005, 14(6): 681-685.
[2]	Nyakana S L, Fanning J C, Boyer R R.Quick reference guide for β titanium alloys in the 00s[J].Journal of Materials Engineering and Performance, 2005, 14(6): 799-811.
[3]	曹春晓.一代材料技术, 一代大型飞机[J].航空学报, 2008, 29(3): 701-706.Cao C X.One generation of material technology, one generation of large aircraft[J].Acta Aeronautica et Astronautica Sinica, 2008, 29(3): 701-706(in Chinese).
[4]	杨冬雨, 付艳艳, 惠松骁, 等.高强高韧钛合金研究与应用进展[J].稀有金属, 2011, 35(4): 575-580. Yang D Y, Fu Y Y, Hui S X, et al.Research and application of high strength and high toughness titanium alloys[J].Chinese Journal of Rare Metals, 2011, 35(4): 575-580(in Chinese).
[5]	Qin D, Lu Y, Guo D, et al.Tensile deformation and fracture of Ti-5Al-5V-5Mo-3Cr-1.5Zr-0.5Fe alloy at room temperature[J].Materials Science and Engineering: A, 2013, 587: 100-109.
[6]	Warchomicka F, Poletti C, Stockinger M.Study of the hot deformation behaviour in Ti-5Al-5Mo-5V-3Cr-1Zr[J].Materials Science and Engineering: A, 2011, 528(28): 8277-8285.
[7]	Pora J.Advanced materials and technologies for A380 structure[J].Flight Airworthiness Support Technology Airbus Customer Services, 2003, 32: 3-8.
[8]	Fanning J C. Properties of TIMETAL 555 (Ti-5Al-5Mo-5V-3Cr-0.6 Fe)[J].Journal of Materials Engineering and Performance, 2005, 14(6): 788-791.
[9]	付艳艳, 宋月清, 惠松骁, 等.热处理对VST55531钛合金的组织和拉伸性能的影响[J].稀有金属, 2008, 32(4): 399-403. Fu Y Y, Song Y Q, Hui S X, et al.Influence of heat treatment on microstructure and tensile property of VST55531 alloy[J].Chinese Journal of Rare Metals, 2008, 32(4): 399-403(in Chinese).
[10]	付艳艳, 惠松骁, 叶文君, 等.冷却速度对VST55531钛合金的显微组织和力学性能的影响[J].中国有色金属学报, 2010, 20(S1): 685-689. Fu Y Y, Hui S X, Ye W J, et al.Effects of cooling rate on microstructure and properties of VST55531 alloy[J].The Chinese Journal of Nonferrous Metals, 2010, 20(S1): 685-689(in Chinese).
[11]	王凯旋, 曾卫东, 邵一涛, 等.基于体视学原理的钛合金显微组织定量分析[J].稀有金属材料与工程, 2009, 38(3): 398-403.Wang K X, Zeng W D, Shao Y T, et al.Quantification of microstructural features in titanium alloys based on stereology[J].Rare Metal Materials and Engineering, 2009, 38(3): 398-403(in Chinese).
[12]	Zhang Z G, Wu G Q, Song H, et al.Relationships between microstructure and mechanical properties of Ti-3Al-5Mo-5V alloy[J].Materials Science and Engineering: A, 2008, 487(1): 488-494.
[13]	Chraponski J, Szkliniarz W.Quantitative metallography of two-phase titanium alloys[J].Materials Characterization, 2001, 46(2-3): 149-154.
[14]	Warchomicka F, Stockinger M, Degischer H P.Quantitative analysis of the microstructure of near β titanium alloy during compression tests[J].Journal of Materials Processing Technology, 2006, 177(1-3): 473-477.