单晶高温合金螺旋选晶过程的数值模拟与实验研究:II螺旋段

张航; 许庆彦; 孙长波; 戚翔; 唐宁; 柳百成

doi:10.3724/SP.J.1037.2013.00214

金属学报 >

2013 , Vol. 49 >Issue 12: 1521 - 1531

DOI: https://doi.org/10.3724/SP.J.1037.2013.00214

论文

单晶高温合金螺旋选晶过程的数值模拟与实验研究:II螺旋段

张航 ,
许庆彦 ,
孙长波 ,
戚翔 ,
唐宁 ,
柳百成

展开

1) 清华大学材料学院先进成形制造教育部重点实验室, 北京 100084
2) 沈阳黎明航空发动机(集团)有限责任公司, 沈阳 110043

张航, 男, 1985年生, 博士生

收稿日期: 2013-04-25

修回日期: 2013-08-02

网络出版日期: 2013-12-11

基金资助

国家重点基础研究发展计划项目2011CB706801, 国家自然科学基金项目51171089,以及国家科技重大专项项目2011ZX04014—052和2012ZX04012—011资助

收起

SIMULATION AND EXPERIMENTAL STUDIES ON GRAIN SELECTION BEHAVIOR OF SINGLE CRYSTAL SUPERALLOY :II. Spiral Part

ZHANG Hang ,
XU Qingyan ,
SUN Changbo ,
QI Xiang ,
TANG Ning ,
LIU Baicheng

Expand

1) Key Laboratory for Advanced Materials Processing Technology, Ministry of Education,School of Materials Science and Engineering, Tsinghua University, Beijing 100084
2) Shenyang Liming Aero—Engine Group Corporation Ltd., Shenyang 110043

Received date: 2013-04-25

Revised date: 2013-08-02

Online published: 2013-12-11

Fold

摘要

研究了螺旋段在选晶过程中的作用. 基于金相及EBSD实验结果, 指出在晶粒竞争生长过程中,晶粒二次臂取向和初始位置分布特征综合决定了晶粒的竞争优势.总结提出了选晶过程的两个几何限制机理:水平方向的二次臂竞争促进作用和竖直方向的一次臂限制作用.两种模型成功解释了螺旋段对选晶过程的作用. 采用修正的元胞自动机(MCA)技术,对螺旋段的晶粒竞争生长过程进行了模拟.研究了晶粒结构及晶体取向随定向凝固过程的变化规律, 并与实验结果进行了对比,两者吻合较好. 基于模拟与实验的研究,获得了螺旋参数对选晶行为的影响规律及作用机理, 提出了选晶器螺旋段的设计准则.

关键词： 数值模拟; 选晶行为; 晶粒取向; EBSD

本文引用格式

张航 , 许庆彦 , 孙长波 , 戚翔 , 唐宁 , 柳百成 . 单晶高温合金螺旋选晶过程的数值模拟与实验研究:II螺旋段[J]. 金属学报, 2013 , 49(12) : 1521 -1531 . DOI: 10.3724/SP.J.1037.2013.00214

Abstract

The spiral selector is the key part for producing single crystal (SX) blades and ensures the integrity of crystal, which mainly includes starter block and spiral part. In this work, the influence of spiral part on the grain selection process was studied. Both of the metallography results and EBSD results proved that the prior location and the special orientation of the second dendrite arms were important for thegrains competitive growth during the directional solidification process. Based on the experimental results, two geometrical restrict mechanisms of grain selection were proposed. They were the competitive stimulating effect on the second dendrite arms in horizontal direction, which was resulted from the spiral arc shape, and the growing blocking effect on the primary dendrites in vertical direction, which was resulted from the take—off angle of the spiral part. These models could successfully explain the grain selecting effects of the spiral part. The modified cellular automaton (MCA) technology was used to simulate the grains' competitive growth in spiral part. The changes of grains structure and orientation as the grain growing on were studied. The simulated and experimental results were compared and agreed well. Based on the simulated and experimental results, Influences of structural parameters on the grain selection behavior were proposed. The criteria for designing spiral part were also presented.

Key words： numerical simulation; grain selection behavior; grain orientation; EBSD

参考文献

[1] Goulette M J, Spilling P D, Arthey R P. In: Kortovich C S, Bricknell R H,eds., Superalloys 1984, Warrendale, PA: TMS, 1984: 167

[2] Kurz W, Fisher D J, translated by Mao X M, Bao G Q. Fundamentals of Solidification. Xi'an: Northwestern Polytechnical University Press, 1987: 20

(Kurz W, Fisher D J著, 毛协民, 包冠乾译. 凝固原理. 西安: 西北工业大学出版社, 1987: 20)

[3] Glicksman M E. Principles of Solidification an Introduction to Modern Casting and Crystal Growth Concepts. New York: Springer Science Business Media, 2011: 305

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

[5] Kurz W, Giovanola B, Trivedi R. Acta Metall, 1986; 34: 823

[6] Oldfield W. Mater Sci Eng, 1973; 11: 211

[7] Reed R C. The Superalloys Fundamentals and Applications. Cambridge, UK:Cambridge University Press, 2006: 121

[8] Shi C X, Zhong Z Y. Acta Metall Sin, 2010; 46: 1281

(师昌绪, 仲增墉. 金属学报, 2010; 46: 1281)

[9] Gandin C A, Rappaz M, Tintillier R. Metall Mater Trans, 1994; 25A: 629

[10] Gandin C A, Rappaz M. Acta Mater, 1997; 45: 2187

[11] Gandin C A, Rappaz M. Acta Metall Mater, 1994; 42: 2233

[12] Gandin C A, Desbiolles J L, Rappaz M, Thevoz P. Metall Mater Trans, 1999; 30A: 3153

[13] Rappaz M, Gandin C A. Acta Metall Mater, 1993; 41: 345

[14] Tang N, Xu Q Y, Liu B C. Spec Cast Nonferrous Alloys, 2011; 31: 1028

(唐宁, 许庆彦, 柳百成. 特种铸造及有色合金, 2011; 31: 1028)

[15] Pan D, Xu Q Y, Liu B C. Acta Metall Sin, 2010; 46: 294

(潘冬, 许庆彦, 柳百成. 金属学报, 2010; 46: 294)

[16] Yu J, Xu Q Y, Cui K, Liu B C. Acta Metall Sin, 2007; 43: 731

(于靖, 许庆彦, 崔锴, 柳百成. 金属学报, 2007; 43: 731)

[17] Guo Y G, Li S M, Liu L, Fu H Z. Acta Metall Sin, 2008; 44: 365

(郭勇冠, 李双明, 刘林, 傅恒志. 金属学报, 2008; 44: 365)

[18] Shan F W, Huang W D, Lin X, Wei L. Acta Metall Sin, 2008; 44: 1042

(单博炜, 黄卫东, 林鑫, 魏雷. 金属学报, 2008; 44: 1042)

[19] Liu B C. China Mechan Eng, 2000; 11: 76

(柳百成. 中国机械工程, 2000; 11: 76)

[20] Zhang H, Xu Q Y, Tang N, Pan D, Liu B C. Sci China (Engl Lett), 2011; 54E: 3191

[21] Carter P, Cox D C, Gandin C A, Reed R C. Mater Sci Eng, 2000; A280: 233

[22] Esaka H, Shinozuka K, Tamura M. Mater Sci Eng, 2005; A413: 151

[23] Epishin A I, Nolze G. Cryst Rep, 2006; 51: 710

[24] Seo S M, Kim I S, Lee J H, Jo C Y, Miyahara H, Ogi K. Met Mater Int, 2009; 15: 391

[25] Pan D. PhD Dissertation, Tsinghua University, Beijing, 2010

(潘冬. 清华大学博士学位论文, 北京, 2010)

[26] Pan D, Xu Q Y, Liu B C, Li J R, Yuan H L, Jin H P. JOM, 2010; 62(5): 30

[27] Dai H J, D'Souza N, Dong H B. Metall Mater Trans, 2011; 42A: 3430

[28] Dai H J, Dong H B, D'Souza N. Metall Mater Trans, 2011; 42A: 3439

[29] Dai H J, Gebelin J, Newell M, Reed R C, D'Souza N, Brown P D, Dong H B.In: Reed R C, Green K A, Caron P, Gabb T P, Fahrmann M G, Huron E S, Woodard S R, eds., Superalloy 2008, Warrendale, PA: TMS, 2008: 367

[30] Jiang L, Li S, Han Y. Procedia Eng, 2012; 27: 1135

[31] Meng X, Li J, Jin T, Sun X, Sun C, Hu Z. J Mater Sci Technol, 2011; 27: 118

[32] Meng X B, Lu Q, Zhang X L, Li J G, Chen Z Q, Wang Y H, Zhou Y Z, Jin T,Sun X F, Hu Z Q. Acta Mater, 2012; 60: 3965

[33] Gao S F, Liu L, Wang N, Zhao X B, Zhang J, Fu H Z. Acta Metall Sin, 2011; 47: 1251

(高斯峰, 刘林, 王柠, 赵新宝, 张军, 傅恒志. 金属学报, 2011; 47: 1251)

[34] Liang Z J. PhD Dissertation, Tsinghua University, Beijing, 2003

(梁作俭. 清华大学博士学位论文, 北京, 2003)

[35] Editorial Committee. Practical Handbook of Engineering Materials.

2nd Ed., Beijing: China Standards Press, 2002: 771

(丛书编委会. 工程材料实用手册. 第2版, 北京:中国标准出版社, 2002: 771)

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献