生长速度对定向凝固<span>Ti</span>－46Al－2Cr－2Nb合金领先相及微观组织的影响

doi:10.3724/SP.J.1037.2013.00398

金属学报

2013, Vol. 49

Issue (11): 1374-1380 DOI: 10.3724/SP.J.1037.2013.00398

论文

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生长速度对定向凝固Ti－46Al－2Cr－2Nb合金领先相及微观组织的影响

张元,刘国怀,李新中,陈瑞润,苏彦庆,郭景杰,傅恒志

哈尔滨工业大学材料科学与工程学院, 哈尔滨 150001

EFFECTS OF GROWTH RATE ON PRIMARY PHASE AND MICROSTRUCTURES OF DIRECTIONALLY SOLIDIFIED Ti－46Al－2Cr－2Nb ALLOY

ZHANG Yuan, LIU Guohuai, LI Xinzhong, CHEN Ruirun, SU Yanqing, GUO Jingjie, FU Hengzhi

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001

引用本文:

张元,刘国怀,李新中,陈瑞润,苏彦庆,郭景杰,傅恒志. 生长速度对定向凝固Ti－46Al－2Cr－2Nb合金领先相及微观组织的影响[J]. 金属学报, 2013, 49(11): 1374-1380.
ZHANG Yuan, LIU Guohuai, LI Xinzhong, CHEN Ruirun, SU Yanqing, GUO Jingjie, FU Hengzhi. EFFECTS OF GROWTH RATE ON PRIMARY PHASE AND MICROSTRUCTURES OF DIRECTIONALLY SOLIDIFIED Ti－46Al－2Cr－2Nb ALLOY[J]. Acta Metall Sin, 2013, 49(11): 1374-1380.

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摘要:

采用Birdgman定向凝固系统, 在恒定的温度梯度和宽的生长速度范围(v=10－120μm/s),对Ti－46Al－2Cr－2Nb合金进行了定向凝固实验, 并对合金的领先相类型、一次枝晶间距(λ₁)、二次枝晶间距(λ₂)和片层间距(λ_e)进行分析.结果表明, 随着生长速度的增加, 试样的领先相由β相转变为α相;通过计算领先相界面温度, 发现基于最高界面温度判据的相选择模型能对Ti－46Al－2Cr－2Nb合金领先相随生长速度v的转变趋势进行预测;λ₁随v的变化规律受领先相转变影响不大, 满足λ₁=700.6v^-0.24关系;但λ₂随v的变化规律受领先相转变影响较大, 当领先相为β和α时,分别满足λ₂=44.0v^-0.10和λ₂=57.3v^-0.23关系;λ_e与v之间满足λ_e=16.4v^-0.76关系, 不受领先相转变的影响. 与TiAl二元合金相比,提高生长速度更有利于Ti－46Al－2Cr－2Nb合金片层细化.

关键词 ： TiAl合金, 定向凝固, 领先相, 微观组织

Abstract：

TiAl alloys with fully lamellar structure has been intensively studied for excellent fracture toughness and creep properties. Directional solidification is an effective way to control the lamellar structure. Thus it is important to investigate the effect of solidification parameters on the structure of TiAl alloys during directional solidification. In this work, microstructures of directionally solidifiedTi－46Al－2Cr－2Nb (atomic fraction, %) alloy has been investigated throughBridgman－type directional solidification experiment at constant temperaturegradient and wide range of growth rates (v=10－120 μm/s). The type of primary phase,the primary dendritic arm spacing (λ₁), the secondary dendritic arm spacing (λ₂) and the lamellar spacing (λ_e) are investigated. It is found that: the primary phase of the specimenstransformed from β phase to α phase with the increase of growth rates; the transformation trend of primary phases with growth rates can be predicted by the phase selection model based on the highest interface temperature criterion. λ₁, λ₂, andλ_e all decrease with the increasing of v. The relationship between λ₁ and v is not affected by the transformation of primary phases, which follows λ₁=700.6v^-0.24 relationship. However the relationship between λ₂ and v is associated with the type of primary phases, λ₂ and v followsλ₂=44.0v^-0.10 relationship when β is the primary phases, while follows λ₂=57.3v^-0.23 relationship when the primary phase has transformed to α phase. The relationship between λ_e and v can be expressed by λ_e=16.4v^-0.76.Compared with TiAl binary alloys, lamellar spacing is more effectively refined by increasing the growth rates in Ti－46Al－2Cr－2Nb alloy.

Key words： TiAl alloy directional solidification primary phase microstructure

收稿日期: 2013-07-10

基金资助:

国家自然科学基金项目51071062, 51274077 和51271068, 国家重点基础研究发展计划项目2011CB605504及中央高校基本科研业务费专项资金项目HIT.NSRIF.2013002资助

作者简介: 张元, 男, 1986年生, 博士生

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https://www.ams.org.cn/CN/10.3724/SP.J.1037.2013.00398 或 https://www.ams.org.cn/CN/Y2013/V49/I11/1374

[1] Yamaguchi M, Johnson D R, Lee H N, Inui H. Intermetallics, 2000; 8: 511

[2] Kim S E, Lee Y T, Oh M H, Inui H, Yamaguchi M. Intermetallics, 2000; 8: 399

[3] Zollinger J, Lapin J, Daloz D, Combeau H. Intermetallics, 2007; 15: 1343

[4] Chen G L, Lin J P. Physical Metallugry for Ordered Intermetallics. Beijing: Metallurgical Industry Press, 1999: 183

(陈国良, 林均品. 有序金属间化合物结构材料物理金属学基础. 北京: 冶金工业出版社, 1999: 183)

[5] Johnson D R. Acta Mater, 1997; 45: 2523

[6] Johnson D R, Inui H, Muto S, Omiya Y, Yamanaka T. Acta Mater, 2006; 54: 1077

[7] Xiao Z X. PhD Dissertation, Beihang University, 2011

(肖志霞. 北京航空航天大学博士学位论文, 2011)

[8] Xiao Z X, Zheng L J, Yang L L, Yan J, Zhang H. Acta Metall Sin, 2010; 10: 1223

(肖志霞, 郑立静, 杨莉莉, 闫洁, 张虎. 金属学报, 2010; 10: 1223)

[9] Fan J L, Li X Z, Su Y Q, Chen R R, Guo J J, Fu H Z. J Cryst Growth, 2011; 337: 52

[10] Fan J L, Li X Z, Su Y Q, Chen R R, Guo J J, Fu H Z. Appl Phys, 2011; 105A: 239

[11] Li X Z, Sun T, Yu C X, Su Y Q, Cao Y Z, Guo J J, Fu H Z. Acta Metall Sin, 2009; 45: 1479

(李新中, 孙涛, 于彩霞, 苏彦庆, 曹勇智, 郭景杰, 傅恒志. 金属学报, 2009; 45: 1479)

[12] Thomas M, Bacos M T. High Temp Mater, 2011; 3: 7

[13] Nie G. PhD Dissertation, Harbin Institute of Technology, 2012

(聂革. 哈尔滨工业大学博士学位论文, 2012)

[14] Kim M C, Oh M H, Lee J H, Inui H, Yamaguchi M, Wee D M. Mater Sci Eng, 1997; A239－240: 570

[15] Su Y Q, Liu C, Li X Z, Guo J J, Li B S, Jia J, Fu H Z. Intermetallics, 2005; 13: 267

[16] Hunt J D. In: Argent B B ed., International Conference on Solidification and Casting of Metals. London: The Metals Society, 1979: 3

[17] Kurz W, Fisher D J. Acta Mater, 1981; 29: 11

[18] Trivedi R. Metall Mater Trans, 1984; 15A: 977

[19] Fan J L, Li X Z, Su Y Q, Chen R R, Guo J J, Fu H Z. Mater Chem Phys, 2011; 130: 1232

[20] Fan J L. PhD Dissertation, Harbin Institute of Technology, 2012

(樊江磊. 哈尔滨工业大学博士学位论文, 2012)

[21] Fan J L, Li X Z, Su Y Q, Guo J J, Fu H Z. Mater Des, 2012; 34: 552

[22] Liu C. PhD Dissertation, Harbin Institute of Technology, 2007

(刘畅. 哈尔滨工业大学博士学位论文, 2007)

[23] Zheng Y B, Li S M, Li Z X, Zhu P C, Fu H Z. J Aeronaut Mater, 2009; 29: 12

(郑元斌, 李双明, 李臻熙, 朱鹏超, 傅恒志. 航空材料学报, 2009; 29: 12

[24] Muto S, Yamanaka T, Lee H N, Johnson D R, Inui H, Yamaguchi M. Adv Eng Mater, 2001; 3: 391

[25] Johnson D R, Inui H, Yamaguchi M. Intermetallics, 1998; 6: 647

[26] Spinelli J E, Rosa D M, Ferreira I L, Garcia A. Mater Sci Eng, 2004; A383: 271

[27] Appel F, Paul J D H, Oehring M. Gamma Titanium Aluminide Alloys: Science and Technology. Weinheim: Wiley, 2011: 33

[28] Trivedi R, Kurz W. Solidification Processing of Eutectic Alloys.Pennsylvania: Metallurgical Society, 1988: 3

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