激光熔覆修复GH4169合金各向异性拉伸性能

doi:10.7527/S1000-6893.2023.29129

Abstract

Abstract:

The tensile properties of GH4169 superalloy repaired by direct energy deposition are anisotropic， and there is a significant correlation between the tensile properties and the angle between the stress direction and the repair interface （interface angle）. Studying the tensile anisotropy of the repaired alloy can lay the foundation for high-performance repair of GH4169 superalloy components. Based on Digital Image Correlation （DIC） technology， this study conducts tensile tests and mechanical behavior analysis of the repaired alloy at different interface angles， and combines Optical Microscopy （OM）， Scanning Electron Microscopy （SEM）， Energy Dispersive X-ray Spectroscopy （EDS） and other methods to observe the microstructure and fracture morphology of the interface area. The anisotropic tensile mechanical properties of GH4169 alloy repaired by direct energy deposition were studied. The results indicate that the tensile properties of the repaired alloy exhibit a negative correlation with the angle between the tensile direction and dendrite growth direction； the fracture of tensile specimens is mainly caused by the separation of Laves/γ phase interface under tensile load， leading to crack nucleation and propagation. When the angle between dendrite orientation and tensile load is small， the larger irregular Laves phase between the dendrites breaks into small particles and moves along with the matrix γ phase， after fracture the dimples are deeper and the tensile strength and yield strength are higher； when the included angle is large， the delamination of Laves/γ phase interface between dendrites leads to crack nucleation， which then rapidly expands， and the fracture surface presents a large number of stepped dendritic intergranular fracture morphology， resulting in poor tensile performance. This study elucidates the mechanism of the influence of different stretching directions on the tensile properties of the repaired alloy， providing a basis for the comprehensive evaluation of the tensile properties of GH4169 superalloy components repaired by direct energy deposition.

Key words: laser cladding, GH4169 superalloy, anisotropic tensile properties, microstructure, fracture mechanism

CLC Number:

V263

Zheming FAN, Weizhu YANG, Yan ZENG, Zhenan ZHAO, Lei LI. Anisotropic tensile properties of GH4169 alloy repaired by laser direct energy deposition[J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(8): 429129-429129.

Figures/Tables 13

Table 1

Table 2

Fig.1

Fig.2

Table 3

Fig.3

Table 4

Fig.4

Fig.5

Fig.6

Fig.7

Table 5

Fig.8

References 23

1	AMATO K， GAYTAN S， MURR L， et al. Microstructures and mechanical behavior of Inconel 718 fabricated by selective laser melting［J］. Acta Materialia， 2012， 60（5）： 2229-2239.
2	ZHANG Y， LI Z G， NIE P L， et al. Effect of ultrarapid cooling on microstructure of laser cladding IN718 coating［J］. Surface Engineering， 2013， 29： 414-418.
3	FISK M， ANDERSSON J， DU RIETZ R， et al. Precipitate evolution in the early stages of ageing in Inconel 718 investigated using small-angle X-ray scattering［J］. Materials Science & Engineering A， 2014， 612： 202-207.
4	李涤尘，鲁中良，田小永，等. 增材制造：面向航空航天制造的变革性技术［J］. 航空学报， 2022， 43（4）： 15-31.
	LI D C， LU Z L， TIAN X Y， et al. Additive manufacturing—Revolutionary technology for leading aerospace manufacturing［J］. Acta Aeronautica et Astronautica Sinica， 2022， 43（4）： 15-31 （in Chinese）.
5	张佩宇，周鑫，李应红. 单晶涡轮叶片高能束修复研究进展［J］. 航空学报， 2022， 43（4）： 147-171.
	ZHANG P Y， ZHOU X， LI Y H. Progress on high energy beam repair of single crystal turbine blades［J］. Acta Aeronautica et Astronautica Sinica， 2022， 43（4）： 147-171 （in Chinese）.
6	SAFDAR S， PINKERTON A J， LI L， et al. An anisotropic enhanced thermal conductivity approach for modelling laser melt pools for Ni-base super alloys［J］. Applied Mathematical Modelling， 2013， 37（3）： 1187-1195.
7	成诚. 激光再制造镍基高温合金工艺及其高温拉伸性能的研究［D］. 南京：南京航空航天大学， 2016： 7-8.
	CHENG C. Research on laser remanufacturing process of nickel-based super-alloy and their high-temperature tensile properties［D］. Nanjing： Nanjing University of Aeronautics and Astronautics， 2016： 7-8 （in Chinese）.
8	CHEN Z， CHEN S G， WEI Z Y， et al. Anisotropy of nickel-based superalloy K418 fabricated by selective laser melting［J］. Progress in Natural Science： Materials International， 2018， 28（4）： 496-504.
9	ZENG Y， LI L， HUANG W， et al. Effect of thermal cycles on laser direct energy deposition repair performance of nickel-based superalloy： Microstructure and tensile properties［J］. International Journal of Mechanical Sciences， 2022， 221： 107173.
10	FERRERI N C， GHORBANPOUR S， BHOWMIK S， et al. Effects of build orientation and heat treatment on the evolution of microstructure and mechanical properties of alloy Mar-M-509 fabricated via laser powder bed fusion［J］. International Journal of Plasticity， 2019， 121： 116-133.
11	徐翔宇，曹阳，王辉，等. 激光熔覆修复叶片的过渡区力学性能试验研究［J］. 现代制造工程， 2021（9）： 118-123.
	XU X Y， CAO Y， WANG H， et al. Experimental research on mechanical properties of the blade transition zone by laser cladding repair process［J］. Modern Manufacturing Engineering， 2021（9）： 118-123 （in Chinese）.
12	WANG K， BAO R， LIU D， et al. Plastic anisotropy of laser melting deposited Ti-5Al-5Mo-5V-1Cr-1Fe titanium alloy［J］. Materials Science and Engineering： A， 2019， 746： 276-289.
13	ZHAO Z N， YANG W Z， LI L， et al. Synchronously Enhanced strength-ductility of L-DEDed GH4169 with varying energy input［J］. International Journal of Mechanical Sciences， 2023， 253： 108402.
14	ZHAO Z N， LI L， YANG W Z， et al. A comprehensive study of the anisotropic tensile properties of laser additive manufactured Ni-based superalloy after heat treatment［J］. International Journal of Plasticity， 2022， 148： 103-147.
15	ZHONG C L， GASSER A， KITTEL J， et al. Microstructures and tensile properties of Inconel 718 formed by high deposition-rate laser metal deposition［J］. Journal of Laser Applications， 2016， 28（2）： 022010.
16	SUI S， TAN H， CHEN J， et al. The influence of Laves phases on the room temperature tensile properties of Inconel 718 fabricated by powder feeding laser additive manufacturing［J］. Acta Materialia， 2019， 164： 413-427.
17	张杰，张群莉，李栋，等. δ时效处理对激光增材修复Inconel 718合金组织与性能的影响［J］. 中国激光， 2020， 47（1）： 0102001.
	ZHANG J， ZHANG Q L， LI D， et al. Effect of δ aging treatment on microstructure and tensile properties of repaired inconel 718 alloy using laser additive manufacturing［J］. Chinese Journal of Lasers， 2020， 47（1）： 0102001 （in Chinese）.
18	卞宏友，赵翔鹏，李英，等. 激光沉积修复GH4169合金试验研究［J］. 红外与激光工程， 2016， 45（2）： 0206006.
	BIAN H Y， ZHAO X P， LI Y， et al. Experimental study on laser deposition repair GH4169 alloy component［J］. Infrared and Laser Engineering， 2016， 45（2）： 0206006 （in Chinese）.
19	明宪良，陈静，谭华，等. 激光修复GH4169高温合金的持久断裂机制研究［J］. 中国激光， 2015， 42（4）： 0403005.
	MING X L， CHEN J， TAN H， et al. Research on persistent fracture mechanism of laser forming repaired GH4169 superalloy［J］. Chinese Journal of Lasers， 2015， 42（4）： 0403005 （in Chinese）.
20	张少平，隋尚，明宪良，等. 激光修复GH4169高温合金的组织与力学性能［J］. 应用激光， 2015， 35（3）： 277-281.
	ZHANG S P， SUI S， MING X L， et al. Microstructure and mechanical properties of laser repaired GH4169 superalloy［J］. Applied Laser， 2015， 35（3）： 277-281 （in Chinese）.
21	RADHAKRISHNAN B， THOMPSON R G. Solidification of the nickel-base superalloy 718： A phase diagram approach［J］. Metallurgical Transactions A， 1989， 20（12）： 2866-2868.
22	TAKATA N， ARMAKI H G， TERADA Y， et al. Plastic deformation of the C14 Laves phase （Fe， Ni）₂Nb［J］. Scripta Materialia， 2013， 68（8）： 615-618.
23	SUI S， CHEN J， FAN E X， et al. The influence of Laves phases on the high-cycle fatigue behavior of laser additive manufactured Inconel 718［J］. Materials Science and Engineering： A， 2017， 695： 6-13.

元素	含量/wt%
元素	Ni	Cr	Nb	Mo	Si	C	P	Al	Mn	Ti	Fe
合金粉末	53.00	19.20	5.16	3.17	0.33	0.03	0.01	0.54	0.23	0.65	Bal.
基板	51.96	18.16	5.02	2.92	<0.35	0.046	<0.015	0.48	<0.35	1.04	Bal.

工艺参数	范围
激光功率P/W	600~800
扫描速率v_s/（mm·min^-1）	400~500
送粉速率v_p/（g·min^-1）	2.0~3.5

测点	含量/wt%										第二相
测点	Ni	Cr	Nb	Mo	Si	C	Al	Ti	Fe	O	第二相
谱图1	42.47	12.42	15.94	4.47	0.51	7.17	0.19	1.12	14.42	Null	Laves相
谱图2	10.84	1.01	3.24	0.99	0.31	4.60	37.83	2.25	5.67	33.26	氧化物
谱图3	43.40	14.04	5.26	2.58	0.20	16.35	0.32	0.54	15.85	Null	碳化物
谱图4	15.52	10.42	53.31	0.41	0.20	8.86	0.14	3.50	7.45	Null	δ相
谱图5	51.35	19.06	4.18	3.28	0.14	1.40	0.49	0.81	18.42	Null	γ基体相
谱图6	29.50	11.02	23.93	3.01	0.09	9.32	1.29	2.20	13.85	Null	δ相

界面角度/（°）	屈服强度σ_y/MPa	延伸率e/%	抗拉强度σ_b/MPa
45	767.8	19.6	1 120.0
90	841.8	15.4	1 117.2
120	728.7	7.3	997.2
135	738.6	8.1	989.7
基材	958.7	33.0	1 191.1

测点	含量/wt%											第二相
测点	Ni	Cr	Nb	Mo	Si	C	Al	Mn	Ti	Fe	O	第二相
谱图1	41.46	12.25	19.54	4.01	0.15	4.25	0.18	0.14	1.01	15.12	Null	Laves相
谱图2	44.94	11.15	17.58	3.25	0.34	4.88	0.15	0.00	0.90	14.72	Null	Laves相
谱图3	41.26	11.80	20.04	3.92	0.27	4.08	0.29	0.09	0.84	15.25	Null	Laves相

Anisotropic tensile properties of GH4169 alloy repaired by laser direct energy deposition

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 13

References 23

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Junfei TENG, Jiahao LI, Huiyan ZHOU, Dawei WU, Haitao XU, Tiesong LIN, Yongde HUANG. Effect of TLP diffusion welding process parameters on microstructure and mechanical properties of GH5188 superalloy joint [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(8): 429205-429205.
[2]	Fengqi WANG, Zhongqi YU, Yehui MENG, Tian GAN, Yixi ZHAO. Deformation mechanism and recrystallization microstructure evolution of aluminum stiffened cylinder during hot flow spinning based on numerical simulation [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023, 44(9): 627341-627341.
[3]	Zhiqiang ZHANG, Ziming YU, Tiangang ZHANG, Qian YANG, Hao WANG. Microstructure of TiC _x reinforced Ti-based composite coating prepared by laser cladding and first principle study on reinforced phase [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023, 44(8): 427294-427294.
[4]	Ming ZHU, Zongzhi ZHANG, Qian YANG, Yu SHI, Ding FAN. Characterization and analysis of melting behavior of powder in coaxial laser cladding [J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(24): 428581-428581.
[5]	Nan ZHAO, Duosheng LI, Yin YE, Fencheng LIU, Wugui JIANG. Microstructure and properties of GH5188 alloy fabricated by selective laser melting [J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(19): 428332-428332.
[6]	Yanting LIU, Jihui OU, Yufeng HAN, Jie CHEN. Effects of rectangular micro-scale structures on hypersonic rarefied shear flow [J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(16): 127956-127956.
[7]	Jiahong NIU, Haonan JIA, Fajun YI, Zujun PENG, Wei CHEN. Low-pressure thermal stability and high-temperature electrical conductivity of dense amorphous SiCN [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(S2): 152-159.
[8]	YANG Jiankai, GU Dongdong, GE Qing, TAN Chenchen, WEN Yu. Support layout and precise forming mechanism of aluminum alloy for laser additive manufacturing [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(4): 525331-525331.
[9]	ZHANG Quanli, CHU Chenglong, ZHAI Jianchao, WANG Yukai, ZHANG Zhen, XU Jiuhua. Surface characteristics formation mechanism of ablated monocrystalline silicon by UV nanosecond pulsed laser [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(4): 525341-525341.
[10]	HU Xianliang, QIAO Hongchao, ZHAO Jibin, LU Ying, WU Jiajun, YANG Yuqi. Effect of laser shock wave on thermal corrosion resistance of single crystal alloy [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(4): 525591-525591.
[11]	YONG Yaowei, ZHAO Ruiheng, WANG Jun, ZHANG Shuai. Properties of nickel-based composite alloy coating on copper reinforced by laser cladding [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(4): 525604-525604.
[12]	ZHAO Kehan, LIU Duo, ZHU Haitao, CHEN Bin, HU Shengpeng, SONG Xiaoguo. Effect of brazing temperature on microstructure and mechanical property of C/C/AgCuTi+C_f/TC4 joint [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(4): 525007-525007.
[13]	WANG Miao, WANG Wei, YANG Yunlong, TAN Caiwang, WANG Gang. Effect of brazing time on microstructure and properties of SiC ceramic brazed with CoFeNiCrCu [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(4): 525057-525057.
[14]	LI Xiaopeng, HAN Rui, QIAN Xusheng, ZHANG Binggang, WANG Kehong. Effect of adding boron element on microstructure and shear strength of Ni-25at%Si/Ti600 joint [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(2): 625069-625069.
[15]	LI Hongliang, CUI Zhanxiang, LIU Shixiong, MA Qiang, YAO Yiqiang, LEI Yucheng. Acoustic-electric characteristics and process of ultrasonic-arc MIG welding of 6061 aluminum alloy [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(2): 624969-624969.