CARBIDE EVOLUTION BEHAVIOR OF K416B AS-CAST Ni-BASED SUPERALLOY WITH HIGH W CONTENT DURING HIGH TEMPERATURE CREEP

doi:10.11900/0412.1961.2014.00543

Acta Metall Sin

2015, Vol. 51

Issue (4): 458-464 DOI: 10.11900/0412.1961.2014.00543

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CARBIDE EVOLUTION BEHAVIOR OF K416B AS-CAST Ni-BASED SUPERALLOY WITH HIGH W CONTENT DURING HIGH TEMPERATURE CREEP

XIE Jun(

), YU Jinjiang, SUN Xiaofeng, JIN Tao, SUN Yuan

Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016

Cite this article:

XIE Jun, YU Jinjiang, SUN Xiaofeng, JIN Tao, SUN Yuan. CARBIDE EVOLUTION BEHAVIOR OF K416B AS-CAST Ni-BASED SUPERALLOY WITH HIGH W CONTENT DURING HIGH TEMPERATURE CREEP. Acta Metall Sin, 2015, 51(4): 458-464.

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Abstract

As-cast Ni-based superalloys with high W content are used extensively in the turbine vane of aero-engine due to their good heat resistance and temperature capability. During high temperature service, the creep deformations and microstructure evolution are occurred in the using materials, and the creep behavior mainly depends on their chemical composition and microstructure, such as size, distribution and morphology of g' phase and carbides. Thereinto, the mophologies of carbide phases are closely related to creep resistance of the alloy. Generally, the carbide particles displaying dispersive distribution may enhance the creep resistance of the alloy, while the carbide with continuous morphologies distributed in the boundaries, they may provide easy paths for crack propagation and degrade the mechanical properties of the alloy. Besides the creep life of the alloy also depends on the microstructure evolution under high temperature. But the evolution mechanism of carbides in K416B superalloy during creep is still unclear up to now. For this reason, by means of creep property measurement and microstructure observation, the evolution behavior of precipitates in K416B Ni-based superalloy with high W content during high temperature creep has been investigated. The results show that the size of g' phase is inhomogeneous in the as-cast alloy, and the stripe MC-carbide distribute in the inter-dendrite regions displaying Chinese structures. During high temperature creep applied stress, fine M₆C carbide discontinuously precipitate in the deformed g matrix. The thermodynamics analysis indicates that the carbon element segregates in the regions of stress concentration and combines with carbide-forming elements W etc, which promoted the fine M₆C carbide to precipitate from the g matrix. At the same time, the grooves are formed on the surface of stripe MC carbide, and then gradually decomposed and transformed into M₆C particles. Thereinto, the additional press formed in the surface of stripe MC carbide is the main factor to promote the MC phase continuous dissolution and spheroidizing.

Key words: K416B Ni-based superalloy creep carbide evolution thermodynamics analysis

ZTFLH:

TG132.3

Fund: Supported by National Basic Research Program of China (Nos.2010CB631200 and 2010CB631206) and National Natural Science Foundation of China (No.50931004)

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	Jun XIE
	Jinjiang YU
	Xiaofeng SUN
	Tao JIN
	Yuan SUN

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https://www.ams.org.cn/EN/10.11900/0412.1961.2014.00543 OR https://www.ams.org.cn/EN/Y2015/V51/I4/458

Fig.1 Creep curve of K416B superalloy under applied stress of 150 MPa at 1000 ℃

Fig.2 SEM images of as-cast K416B superalloy (a) γ' phase in the dendrite and inter-dendrite (b) carbide in the inter-dendrite

Fig.3 SEM images of K416B superalloy after creep for 5 h (a), 50 h (b) and 154 h (c) under applied stress of 150 MPa at 1000 ℃

Fig.4 SEM images of strip carbide in K416B superalloy after creep for 5 h (a), 50 h (b) and 154 h (c) under applied stress of 150 MPa at 1000 ℃

Fig.5 TEM images of stripe carbide in K416B superalloy during creep for 50 h (a) and 154 h (b) under applied stress of 150 MPa at 1000 ℃ (Insets show the corresponding SAED patterns of carbides)

Fig.6 TEM images of K416B superalloy after being crept to fracture (Inset in Fig.6a shows the SAED pattern of the fine carbide)

(a) fine carbide precipitating in the regions of dislocation tangles

(b) carbide hindering the dislocation movement

Fig.7 Schematic diagram of MC phase fusing during creep (P^M^C/^g—addictive stress on MC/g interface, s_M_C/_g—MC/g interface stress, a—included angle of the grooves, Y—carbide forming elements)

(a) stripe MC carbide

(b) interfaces tension distribution in the dissolved groove of MC phase

[1]	Liu Y, Hu R, Li J S, Kou H C, Li H W, Chang H, Fu H Z. Mater Sci Eng, 2009; A508: 141
[2]	Kim I S, Choi B G, Hong H U, Do J, Jo C Y. Mater Sci Eng, 2014; A593: 55
[3]	Zhang G Q. Acta Metall Sin (Engl Lett), 2005; 18: 55
[4]	Yang Y H, Yu J J, Sun X F, Jin T, Guan H R, Hu Z Q. Mater Des, 2012; 36: 699
[5]	Tang B, Jiang L, Hu R, Li Q. Mater Charact, 2013; 78: 144
[6]	Zhen Y R, Xie J Z. J Aeronaut Mater, 2009; 29(6): 1
	(郑运荣, 谢济洲. 航空材料学报, 2009; 29(6): 1)
[7]	Qin X Z, Guo J T, Yuan C, Hou J S, Ye H Q. Mater Lett, 2008; 62: 2275
[8]	Hou J S, Guo J T, Wu Y X, Zhou L Z, Ye H Q. Mater Sci Eng, 2010; A527: 1548
[9]	Zheng L, Gu C Q, Zeng Q, Hou S E. J Aeronaut Mater, 2004; 24(1): 17
	(郑亮, 谷臣清, 曾强, 侯淑娥. 航空材料学报, 2004; 24(1): 17)
[10]	He L Z, Sun X F, Zheng Q, Hou G C, Zhang C Z, Guan H R, Hu Z Q. Mater Eng, 2004; (2): 40
	(何立子, 孙晓峰, 郑启, 侯贵臣, 张承忠, 管恒荣, 胡壮麒. 材料工程, 2004; (2): 40)
[11]	Yuan C, Sun X F, Yin F S, Guan H R, Hu Z Q, Zheng Q, Yu Y. J Mater Sci Technol, 2001; 17: 425
[12]	Bai G H, Li J S, Hu R, Zhang T B, Kou H C, Fu H Z. Mater Sci Eng, 2011; A528: 2339
[13]	Yang J X, Zheng Q, Sun X F, Guan H R, Hu Z Q. Mater Sci Eng, 2007; A465, 100
[14]	Qin X Z, Guo J T, Yuan C, Hou J S, Ye H Q. Mater Sci Forum, 2007; 546-549: 1301
[15]	Yang J X, Sun Y, Jin T, Sun X F, Hu Z Q. Acta Metall Sin, 2014; 50: 839
	(杨金侠, 孙元, 金涛, 孙晓峰, 胡壮麒. 金属学报, 2014; 50: 839)
[16]	Xiao X, Zeng C, Hou J S, Qin X Z, Guo J T, Zhou L Z. Acta Metall Sin, 2014; 50: 1031
	(肖璇, 曾超, 侯介山, 秦学智, 郭建亭, 周兰章. 金属学报, 2014; 50: 1031
[17]	Wang L, Wang S, Song X, Liu Y, Xu G H. Int J Fatigue, 2014; 62: 210
[18]	Yang J X, Zheng Q, Sun X F, Guan H R, Hu Z Q. Mater Sci Eng, 2006; A429: 341
[19]	Seo S M, Kim I S, Lee J H, Jo C Y, Miyahara H, Ogi K. J Met Sci Technol, 2008; 24: 110
[20]	Mats H,translated by Lai H Y,Liu G X. Alloy Diffusion and Thermodynamic. Beijing: Metallurgical Industry Press, 1984: 103
	(Mats H 著,赖和怡,刘国勋译. 合金扩散和热力学. 北京: 冶金工业出版社, 1984: 103)
[21]	Mats H,translated by Li Q B,Wang X C. Diffusion Controlled Reactions in Alloy and Thermodynamic of Alloy. Shenyang: Liao-ning Science and Technology Press, 1984: 204
	(Mats H著,李清斌,王晓春译. 合金中的扩散相变与合金热力学. 沈阳: 辽宁科学技术出版社, 1984: 204)
[22]	Lvov G, Levit V I, Kaufman M J. Metall Mater Trans, 2004; 35A: 1669
[23]	Mao W M,Zhu J C,Li J,Long Y,Fan Q C. The Structure and Properties of Metallic Materials. Beijing: Tsinghua University Press, 2008: 186
	(毛卫民,朱景川,郦剑,龙毅,范群成. 金属材料结构与性能. 北京: 清华大学出版社, 2008: 186)
[24]	Tian S G, Wang M G, Li T, Qian B J, Xie J. Mater Sci Eng, 2010; A527: 5444
[25]	Xie J, Tian S G, Zhou X M, Yu X F, Wang W X. Mater Sci Eng, 2012; A538: 306
[26]	He L Z, Zheng Q, Sun X F, Guan H R, Hu Z Q, Tieu A K, Lu C, Zhu H T. Metall Mater Trans, 2005; 36A: 2385

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