预应变对TC4ELI钛合金变形行为的影响

尹艳超; 张帅锋; 许亚利; 蒋鹏; 余巍; 吕逸帆

预应变对TC4ELI钛合金变形行为的影响

中国船舶集团有限公司第七二五研究所, 河南洛阳 471023

详细信息

作者简介:
尹艳超,男,1989年生,主要从事钛合金材料及结构完整性研究。E-mail:alvinyin@sina.cn

中图分类号: TG146.23
计量
- 文章访问数: 262
- HTML全文浏览量: 70
- PDF下载量: 20
- 被引次数: 0
出版历程
- 收稿日期: 2022-07-11
- 网络出版日期: 2023-03-11

Influence of Pre-strain on Deformation Behavior of TC4ELI Titanium Alloy

Luoyang Ship Material Research Institute, Luoyang 471023, China

摘要

摘要: 对TC4ELI钛合金分别进行正向拉伸-反向压缩和正向压缩-反向拉伸试验,研究预应变对其后续反向变形行为的影响。结果表明:两种加载方式下,TC4ELI钛合金反向屈服强度均随着预应变的增大先降低后趋于稳定,表现出明显的包申格效应。预拉伸试验下的饱和预应变约为2%,预压缩试验下的饱和预应变约为4%。预压缩后强度降低更加明显。晶体取向差异和α相的高度不对称密排六方结构导致材料在加载过程中出现非均匀塑性变形,产生残余应力,这是诱发TC4ELI钛合金产生包申格效应的主要机制。
- TC4ELI钛合金 /
- 预拉伸 /
- 预压缩 /
- 包申格效应<
Abstract: Tension-unloading-compression and compression-unloading-tension tests are carried out to study the influence of pre-strain on the deformation behavior of TC4ELI titanium alloy. The results show that TC4ELI titanium alloy exhibits obvious bauschinger effect in both the tensile-first and compressive-first tests. With the increasing of pre-strain, the reverse yield strength decreases first and then tends to be stable. The saturated pre-strain under pre-tension test is about 2%, and the saturated pre-strain under pre-compressive test is about 4%. The reduction of yield strength is more obvious after pre-compression. The non-uniform plastic deformation due to the crystal orientation differences and highly asymmetric close hexagonal structure of α phase contributes to the residual stress, which is the main cause for the bauschinger effect in TC4ELI titanium alloy.
- TC4ELI titanium alloy /
- pre-tensile /
- pre-compressive /
- bauschinger effect

HTML全文

参考文献(22)

[1]	王延峰,李聪,凌绪玉,等.金属材料的包申格效应综述[J].中国核科技报告, 2002(1):14.
[2]	MILLIGAN R V, KOO W H, DAVIDSON T E. The bauschinger effect in a high-strength steel[J]. Journal of Basic Engineering, 1966, 88(2):480-488.
[3]	KIM J H, KIM D, BARLAT F, et al. Crystal plasticity approach for predicting the Bauschinger effect in dual-phase steels[J]. Materials Science and Engineering:A, 2012, 539:259-270.
[4]	LIU X L, YUAN F P, ZHU Y T, et al. Extraordinary Bauschinger effect in gradient structured copper[J]. Scripta Materialia, 2018, 150:57-60.
[5]	CORBIN S F, WILKINSON D S, EMBURY J D. The Bauschinger effect in a particulate reinforced Al alloy[J]. Materials Science and Engineering:A, 1996, 207(1):1-11.
[6]	MACEWEN S R, ELLS C E, WOO O T. The bauschinger effect in zircaloy-2[J]. Journal of Nuclear Materials, 1981, 101(3):336-349.
[7]	MOISEYEV V N. Titanium alloys Russian aircraft and aerospace applications[M]. Boca Raton:Taylor&Francis, 2006.
[8]	DONACHIE M J. Titanium:a technical guide[M]. 2nd ed. Materials Park, OH:ASM International, 2000.
[9]	赵永庆,陈永楠,张学敏.钛合金相变及热处理[M].长沙:中南大学出版社, 2012.
[10]	常辉.海洋工程钛金属材料[M].北京:化学工业出版社, 2017.
[11]	关蕾,李瑞,张雪敏,等.退火温度对TC4ELI钛合金大规格环材组织和力学性能的影响[J].有色金属材料与工程, 2021, 42(3):18-22.
[12]	王雷,王琨,李艳青,等. TC4ELI钛合金低周疲劳性能研究[J].钛工业进展, 2018, 35(2):17-21.
[13]	王雷,屈平,李艳青,等.钛合金材料蠕变特性的理论与试验研究[J].船舶力学, 2018, 22(4):464-474.
[14]	王雷,屈平,黄进浩,等.钛合金耐压结构蠕变数值计算方法与试验验证[J].船舶力学, 2019, 23(2):190-199.
[15]	宋庆军.大厚度TC4ELI钛合金EBW质量控制及球壳变形预测[D].哈尔滨:哈尔滨工业大学, 2015.
[16]	孙洋洋,常辉,方志刚,等. TC4 ELI钛合金显微组织对低周疲劳性能的影响[J].稀有金属材料与工程, 2020, 49(5):1623-1628.
[17]	张功庭,盛光敏,黄利.金属包申格效应的表征、影响因素与机理研究进展[J].材料导报, 2008, 22(S3):135-138.
[18]	刘海涛,王任甫,杨景红,等. 10CrNi₅MoV钢的包申格效应研究[J].材料开发与应用, 2016, 31(4):47-50.
[19]	马鸣图.金属合金中的Bauschinger效应[J].机械工程材料,1986,10(2):15-21.
[20]	STOLTZ R E, PELLOUX R M. The Bauschinger ef-fect in precipitation strengthened aluminum alloys[J]. Metallurgical Transactions A, 1976, 7(8):1295-1306.
[21]	马鸣图,段祝平,友田阳.金属合金中的包辛格效应及其在工业生产中的应用[M].北京:机械工业出版社,1994.
[22]	KASSAM Z H A, WANG Z R. Bauschinger effect in a modified Zr-2.5wt.% Nb pressure tube material[J]. Materials Science and Engineering:A, 1993, 171(1-2):55-63.