冷轧TA5钛合金退火过程的再结晶行为及织构演变

doi:10.13251/j.issn.0254-6051.2022.02.001

金属热处理 ›› 2022, Vol. 47 ›› Issue (2): 1-8.DOI: 10.13251/j.issn.0254-6051.2022.02.001

• 组织与性能 • 下一篇

冷轧TA5钛合金退火过程的再结晶行为及织构演变

张世进¹, 李凯², 易丹青^1,2, 刘会群¹

1.中南大学材料科学与工程学院, 湖南长沙 410083;
2.中铝材料应用研究院有限公司, 北京 102209

收稿日期:2021-09-16 修回日期:2021-11-25 出版日期:2022-02-25 发布日期:2022-04-01
通讯作者: 刘会群,教授,E-mail:liuhuiqun@csu.edu.cn
作者简介:张世进(1995—),男,硕士研究生,主要研究方向为钛合金形变及热处理,E-mail:863568912@qq.com。

Recrystallization behavior and texture evolution of cold rolled TA5 titanium alloy during annealing

Zhang Shijin¹, Li Kai², Yi Danqing^1,2, Liu Huiqun¹

1. School of Materials Science and Engineering, Central South University, Changsha Hunan 410083, China;
2. Chinalco Materials Application Research Institute Co., Ltd., Beijing 102209, China

Received:2021-09-16 Revised:2021-11-25 Online:2022-02-25 Published:2022-04-01

摘要/Abstract

摘要： 采用电子背散射衍射技术(EBSD)对冷轧及退火态TA5钛合金板材的晶粒尺寸、再结晶及织构进行了表征,并讨论了变形不均匀对再结晶行为及织构演变的影响。结果表明:<0002>//TD取向晶粒比<0002>//ND取向晶粒更容易发生变形,结合hcp结构滑移系统的有限性,共同决定了TA5合金板材冷轧变形具有不均匀性的特点。退火早期再结晶在局部应变大的区域快速形核,且变形量越大,形核数量也越多,再结晶后样品的晶粒尺寸也越小。局部应变大的区域在退火早期以“定向形核”机制快速发生再结晶形核并长大,包括少量剩余的严重变形<0002>//TD取向晶粒;同时,其余应变较低的组织在再结晶形核全过程以“应变诱发晶界迁动形核”机制缓慢形核,这两种机制共同作用导致退火后板材的织构弱化,但仍以冷轧态的基面织构为主。硬度变化曲线可以很好的反映再结晶程度;但受织构影响,不同测试面的硬度值存在显著差异,加载轴与晶体c轴之间的夹角越大,硬度值越小。

关键词: TA5钛合金, 变形不均匀性, 再结晶, 织构, 硬度

Abstract: Electron backscatter diffraction (EBSD) was used to characterize the grain size, recrystallization and texture of cold-rolled and annealed TA5 titanium alloy plates, the effects of deformation non-uniformity on recrystallization behavior and texture evolution were discussed. The results show that <0002>//TD-oriented grains are more prone to deforming than <0002>//ND-oriented grains, combined with the limited-slip system of hcp structure, which jointly determine the non-uniformity of cold-rolled deformation of TA5 alloy plates. In the early stage of annealing, the recrystallization rapidly nucleates in the high-stored-energy regions, and the greater the deformation, the more nucleation number, and the smaller the grain size of the sample after recrystallization. The recrystallized grains rapidly complete nucleation through the "oriented nucleation" mechanism in high-stored-energy regions during the early stage of annealing and then grow, including a small amount of residual severely deformed <0002>//TD-oriented grains. At the same time, the recrystallized grains nucleate slowly through the "strain-induced boundary migration" mechanism in the regions with low-stored-energy during the entire recrystallization process. These two mechanisms work together to weaken the texture of the annealed plate, but the cold-rolled state basal texture is still dominated. The hardness curve can well reflect the degree of recrystallization, however, the hardness values of different test surfaces affected by the texture are significantly different. The larger the angle between the loading axis and the crystal c axis, the smaller the hardness value.

Key words: TA5 titanium alloy, deformation heterogeneity, recrystallization, texture, hardness

中图分类号:

TG166.5

张世进, 李凯, 易丹青, 刘会群. 冷轧TA5钛合金退火过程的再结晶行为及织构演变[J]. 金属热处理, 2022, 47(2): 1-8.

Zhang Shijin, Li Kai, Yi Danqing, Liu Huiqun. Recrystallization behavior and texture evolution of cold rolled TA5 titanium alloy during annealing[J]. Heat Treatment of Metals, 2022, 47(2): 1-8.

参考文献

[1]沃华, 蔡学章, 李成刚. TA5板材织构对其力学性能各向异性的影响[J]. 稀有金属, 1989, 13(1): 37-42.
[2]夏申琳, 王刚, 杨晓, 等. 钛及钛合金在船舶中的应用[J]. 金属加工(冷加工), 2016(19): 40-41.
[3]Yu W X, Lü Y F, Li S K, et al. Mechanism of the anisotropy of yield ratio in TA5 titanium alloy plates[J]. Materials Science & Engineering A, 2015, 639: 314-319.
[4]Chun Y B, Yu S H, Semiatin S L, et al. Effect of deformation twinning on microstructure and texture evolution during cold rolling of CP-titanium[J]. Materials Science and Engineering A, 2005, 398: 209-219.
[5]Won W J, Park C H, Hong S G, et al. Deformation anisotropy and associated mechanisms in rolling textured high purity titanium[J]. Journal of Alloys and Compounds, 2015, 651: 245-254.
[6]Wang Y, He W J, Liu N, et al. Effect of pre-annealing deformation on the recrystallized texture and grain boundary misorientation in commercial pure titanium[J]. Materials Characterization, 2018, 136: 1-11.
[7]Ghosh A, Singh A, Gurao N P. Effect of rolling mode and annealing temperature on microstructure and texture of commercially pure-titanium[J]. Materials Characterization, 2017, 125: 83-93.
[8]Williams J C, Baggerly R G, Paton N E. Deformation behavior of HCP Ti-Al alloy single crystals[J]. Metallurgical and Materials Transactions A, 2002, 33(13): 837-850.
[9]郝晓博, 张强, 陶会发, 等. 轧制工艺对TA5钛合金薄板组织与性能的影响[J]. 热加工工艺, 2019, 48(19): 119-120, 123.
Hao Xiaobo, Zhang Qiang, Tao Huifa, et al. Effects of rolling process on microstructure and properties of TA5 titanium alloy sheet[J]. Hot Working Technology, 2019, 48(19): 119-120, 123.
[10]王树军. 热处理工艺对TA5钛合金组织和性能的影响[C]//2012船舶材料与工程应用学术会议论文集. 中国造船工程学会, 2012: 61-64.
[11]Fitzner A, Prakash D G L, Fonseca J Q, et al. The effect of aluminium on twinning in binary alpha-titanium[J]. Acta Materialia, 2016, 103: 341-351.
[12]Bishoyi B D, Sabat R K, Sahoo S K. Effect of temperature on microstructure and texture evolutions during uniaxial compression of commercially pure titanium[J]. Materials Science and Engineering A, 2018, 718: 398-411.
[13]Dyakonov G S, Mironov S, Semenova I P, et al. EBSD analysis of grain-refinement mechanisms operating during equal-channel angular pressing of commercial-purity titanium[J]. Acta Materialia, 2019, 173: 174-183.
[14]Rollett Anthony, Gregory S Rohrer, Humphreys John. Recrystallization and Related Annealing Phenomena[M]. Third Edition. Oxford: Pergamon, 2017.
[15]Chun Y B, Hwang S K. Static recrystallization of warm-rolled pure Ti influenced by microstructural inhomogeneity[J]. Acta Materialia, 2008, 56: 369-379.
[16]Choi S W, Li C L, Won J W, et al. Deformation heterogeneity and its effect on recrystallization behavior in commercially pure titanium: Comparative study on initial microstructures[J]. Materials Science and Engineering A, 2019, 764: 138211.
[17]Fizanne-Michel C, Cornen M, Castany P, et al. Determination of hardness and elastic modulus inverse pole figures of a polycrystalline commercially pure titanium by coupling nanoindentation and EBSD techniques[J]. Materials Science and Engineering A, 2014, 613: 159-162.
[18]Britton T B. The effect of crystal orientation on the indentation response of commercially pure titanium: Experiments and simulations[J]. Proceedings of the Royal Society A: Mathematical, Physical & Engineering Sciences, 2010, 466: 695-719.
[19]Viswanathan G B, Lee E, Maher D M, et al. Direct observations and analyses of dislocation substructures in the α phase of an α/β Ti-alloy formed by nanoindentation[J]. Acta Materialia, 2005, 53: 5101-5115.
[20]Chun Y B, Semiatin S L, Hwang S K. Monte Carlo modeling of microstructure evolution during the static recrystallization of cold-rolled, commercial-purity titanium[J]. Acta Materialia, 2006, 54: 3673-3689.

冷轧TA5钛合金退火过程的再结晶行为及织构演变

Recrystallization behavior and texture evolution of cold rolled TA5 titanium alloy during annealing

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	连轶博, 杨春雷, 王国栋, 宋威. 固溶处理对GH4080A高温合金微观组织的影响[J]. 金属热处理, 2022, 47(4): 46-52.
[2]	付锡彬, 陈子豪, 张可, 赵时雨, 孙新军, 朱正海, 梁小凯, 雍岐龙. 淬火温度对高Ti低合金耐磨钢组织及力学性能的影响[J]. 金属热处理, 2022, 47(4): 122-127.
[3]	宿鹏吉, 麻永林, 董丽丽, 杨雪峰. 磁场预退火处理对CGO钢组织与织构的影响[J]. 金属热处理, 2022, 47(4): 128-132.
[4]	李立, 曾艳, 吴晓春. 4Cr5Mo2VCo钢的热处理工艺优化[J]. 金属热处理, 2022, 47(4): 133-140.
[5]	孙凯, 陈研, 杨绍斌. 时效温度对激光选区熔化TC21钛合金微观组织及硬度的影响[J]. 金属热处理, 2022, 47(4): 155-158.
[6]	章军, 赵四新. 冷锻齿轮用16MnCrS5钢的球化退火工艺[J]. 金属热处理, 2022, 47(4): 185-188.
[7]	戴建科, 韩顺, 厉勇, 刘宪民, 王春旭, 庞学东, 李建新. 航空齿轮钢C69高温渗碳后的组织性能[J]. 金属热处理, 2022, 47(4): 219-225.
[8]	苏勇, 王帅, 王吉星, 于兴福, 刘洪秀, 刘金玲. 复合化学热处理对G13Cr4Mo4Ni4V钢组织和硬度的影响[J]. 金属热处理, 2022, 47(4): 226-230.
[9]	王敬元, 吴松全, 张博华, 辛社伟, 杨义, 王皞, 黄爱军. 固溶时效处理对BT25y钛合金显微组织及硬度的影响[J]. 金属热处理, 2022, 47(3): 14-19.
[10]	孙建, 黄贞益, 李景辉, 王萍. 固溶和时效处理对Fe-Mn-Al-C轻质钢组织和硬度的影响[J]. 金属热处理, 2022, 47(3): 34-38.
[11]	杨春苗, 王珊, 王淑慧, 李延珍, 刘文文. RRA过程中预时效时间对7A85铝合金组织性能的影响[J]. 金属热处理, 2022, 47(3): 44-47.
[12]	王国迪, 景然, 张曼雪, 冯甜, 余国庆, 解念锁. 冷轧变形量及再结晶对TC4合金组织与性能的影响[J]. 金属热处理, 2022, 47(3): 48-52.
[13]	王方军, 刘应龙, 时瑶, 万红, 刘斌斌. 等温退火处理对Inconel 625合金箔材组织和性能的影响[J]. 金属热处理, 2022, 47(3): 77-81.
[14]	余世伦, 张孝军, 孔玢, 刘正乔, 余伟, 蒋孟玲. 退火工艺对冷轧工业纯钛带卷各向异性的影响[J]. 金属热处理, 2022, 47(3): 82-87.
[15]	孙国进, 郜志文, 崔效炎, 郜可坤, 孙力. 双液淬火对9Cr2Mo钢辊皮组织与硬度的影响[J]. 金属热处理, 2022, 47(3): 88-91.