激光选区熔化成形GH5188合金微观组织及性能

doi:10.7527/S1000-6893.2023.28332

Abstract

Abstract:

The effects of laser power， scanning speed， scanning distance and interlayer angle on the forming quality of GH5188 alloy were investigated by Selective Laser Melting （SLM） process. The microstructure and mechanical properties were analyzed. The results show that when the laser power is 300 W， the scanning speed is 800 mm/s， the scanning spacing is 0.08 mm， and the print direction angle between layers is 45°， the internal microstructure of the formed sample is better than the surface， and the quality of the top surface is better than that of the side surface. The microstructure of the alloy is affected by the weld channel and molten pool， and the fine crystals are distributed on the edge of the weld channel. There are fine subcrystals （diameter is 1–2 μm） and long strip precipitation carbide M₂₃C₆/M₆C （about 50 nm long and 10 nm wide） in the grains， and the carbide particles are uniformly dispersed in the matrix. The movement of dislocation was hindered by the subcrystals， and the carbides have pinning effect on dislocation， strengthening the mechanical properties of GH5188 alloy. Under the process parameters， the density of GH5188 alloy increased to 98.75%， the hardness is 296.71 HV， and the tensile strength is 1 048.38 MPa. The hardness and tensile properties of the sample are higher than that of the hot rolled plate， and the elongation is 11.7%， which is lower than that of the hot rolled plate. GH5188 alloy fabricated by SLM has good mechanical properties.

Key words: GH5188 superalloy, SLM, quality, mechanical properties, microstructure

CLC Number:

V252

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.

Figures/Tables 19

Table 1

Fig.1

Fig.2

Table 2

Fig.3

Fig.4

Table 3

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

Fig.12

Fig.13

Fig.14

Fig.15

Fig.16

References 32

1	冯一琦，谢国印，张璧，等. 激光功率与底面状态对选区激光熔化球化的影响［J］. 航空学报， 2019， 40（12）： 423089.
	FENG Y Q， XIE G Y， ZHANG B， et al. Influence of laser power and surface condition on balling behavior in selective laser melting［J］. Acta Aeronautica et Astronautica Sinica， 2019， 40（12）： 423089 （in Chinese）.
2	REN X Y， LI W W， JING Y J， et al. Dissimilar brazing of Nb_SS/Nb₅Si₃ composite to GH5188 superalloy using Ni-based filler alloys［J］. Welding in the World， 2021， 65（9）： 1767-1775.
3	AN Y K， XU X L， HAO Y C， et al. Effect of Co addition on solidification velocity， hardness and refined structure transformation mechanisms of undercooled Ni-Cu-Co alloys［J］. Journal of Alloys and Compounds， 2022， 921： 166150.
4	孔豪豪，杨树峰，曲敬龙，等. GH4169铸锭中夹杂物的类型及分布规律［J］. 航空学报， 2020， 41（4）： 423306.
	KONG H H， YANG S F， QU J L， et al. Type and distribution of inclusion in GH4169 nickel based superalloy［J］. Acta Aeronautica et Astronautica Sinica， 2020， 41（4）： 423306 （in Chinese）.
5	WEI W， XIAO J C， WANG C F， et al. Hierarchical microstructure and enhanced mechanical properties of SLM-fabricated GH5188 Co-superalloy［J］. Materials Science and Engineering： A， 2022， 831： 142276.
6	TAKAICHI A， NAKAMOTO T， JOKO N， et al. Microstructures and mechanical properties of Co-29Cr-6Mo alloy fabricated by selective laser melting process for dental applications［J］. Journal of the Mechanical Behavior of Biomedical Materials， 2013， 21： 67-76.
7	WEI W， ZHOU Y N， LIU W B， et al. Microstructural characterization， mechanical properties， and corrosion resistance of dental Co-Cr-Mo-W alloys manufactured by selective laser melting［J］. Journal of Materials Engineering and Performance， 2018， 27（10）： 5312-5320.
8	WEI W， ZHOU Y N， SUN Q， et al. Microstructures and mechanical properties of dental Co-Cr-Mo-W alloys fabricated by selective laser melting at different subsequent heat treatment temperatures［J］. Metallurgical and Materials Transactions： A， 2020， 51（6）： 3205-3214.
9	DONG X， ZHOU Y N， SUN Q， et al. Fatigue behavior of biomedical Co-Cr-Mo-W alloy fabricated by selective laser melting［J］. Materials Science and Engineering： A， 2020， 795： 140000.
10	韩寿波，张义文，田象军，等. 航空航天用高品质3D打印金属粉末的研究与应用［J］. 粉末冶金工业， 2017， 27（6）： 44-51.
	HAN S B， ZHANG Y W， TIAN X J， et al. Research and application of high quality 3D printing metal powders for aerospace use［J］. Powder Metallurgy Industry， 2017， 27（6）： 44-51 （in Chinese）.
11	GU D D， SHI X Y， POPRAWE R， et al. Material-structure-performance integrated laser-metal additive manufacturing［J］. Science， 2021， 372（6545）： eabg1487.
12	HE J J， LI D S， JIANG W G， et al. The martensitic transformation and mechanical properties of Ti6Al4V prepared via selective laser melting［J］. Materials， 2019， 12（2）： 321.
13	高嘉洁. 钴合金高压热处理后的组织与性能研究［D］. 秦皇岛：燕山大学， 2018.
	GAO J J. Study on microstructures and properties of cobalt alloy after high pressure heat treatment［D］. Qinhuangdao： Yanshan University， 2018 （in Chinese）.
14	柳朝阳，赵备备，李兰杰，等. 金属材料3D打印技术研究进展［J］. 粉末冶金工业， 2020， 30（2）： 83-89.
	LIU C Y， ZHAO B B， LI L J， et al. Research progress of 3D printing technology for metallic materials［J］. Powder Metallurgy Industry， 2020， 30（2）： 83-89 （in Chinese）.
15	YANG Y， CHEN T Y， TAN L Z， et al. Bifunctional nanoprecipitates strengthen and ductilize a medium-entropy alloy［J］. Nature， 2021， 595（7866）： 245-249.
16	黄建国，任淑彬. 选区激光熔化成型铝合金的研究现状及展望［J］. 材料导报， 2021， 35（23）： 23142-23152.
	HUANG J G， REN S B. Research status and prospect of aluminum alloy manufactured by selective laser melting［J］. Materials Reports， 2021， 35（23）： 23142-23152 （in Chinese）.
17	王迪，欧远辉，窦文豪，等. 粉末床激光熔融过程中飞溅行为的研究进展［J］. 中国激光， 2020， 47（9）： 9-23.
	WANG D， OU Y H， DOU W H， et al. Research progress on spatter behavior in laser powder bed fusion［J］. Chinese Journal of Lasers， 2020， 47（9）： 9-23 （in Chinese）.
18	石文天，韩玉凡，刘玉德，等. 选区激光熔化TC4球化飞溅机理及其试验研究［J］. 表面技术， 2021， 50（11）： 75-82.
	SHI W T， HAN Y F， LIU Y D， et al. Mechanism and experimental study of TC4 spheroidization and splash in selective laser melting［J］. Surface Technology， 2021， 50（11）： 75-82 （in Chinese）.
19	BASHA S M， BHUYAN M， BASHA M M， et al. Laser polishing of 3D printed metallic components： A review on surface integrity［J］. Materials Today： Proceedings， 2020， 26： 2047-2054.
20	庞铭，郎甜甜. 基于多约束条件下激光增材镍基高温合金层的组织和性能［J］. 材料热处理学报， 2020， 41（11）： 135-142.
	PANG M， LANG T T. Microstructure and properties of nickel-based superalloy layer prepared by laser additive based on multiple constraints［J］. Transactions of Materials and Heat Treatment， 2020， 41（11）： 135-142 （in Chinese）.
21	ZHANG Y F， LI J Z， XU H Y， et al. Dynamic evolution of oxide film on selective laser melted Ti-6Al-4V alloy［J］. Journal of Alloys and Compounds， 2020， 849： 156622.
22	KUMAR P， SAWANT M S， JAIN N K， et al. Microstructure characterization of Co-Cr-Mo-xTi alloys developed by micro-plasma based additive manufacturing for knee implants［J］. Journal of Materials Research and Technology， 2022， 21： 252-266.
23	孙晓峰，宋巍，梁静静，等. 激光增材制造高温合金材料与工艺研究进展［J］. 金属学报， 2021， 57（11）： 1471-1483.
	SUN X F， SONG W， LIANG J J， et al. Research and development in materials and processes of superalloy fabricated by laser additive manufacturing［J］. Acta Metallurgica Sinica， 2021， 57（11）： 1471-1483 （in Chinese）.
24	ZHANG T L， HUANG Z H， YANG T， et al. In situ design of advanced titanium alloy with concentration modulations by additive manufacturing［J］. Science， 2021， 374（6566）： 478-482.
25	屈华鹏，张宏亮，冯翰秋，等. 金属材料增材制造（3D打印）技术的局限性［J］. 热加工工艺， 2018， 47（16）： 1-6， 12.
	QU H P， ZHANG H L， FENG H Q， et al. Limitation of additive manufacturing （3D printing） process for metal materials［J］. Hot Working Technology， 2018， 47（16）： 1-6， 12 （in Chinese）.
26	ARYSHENSKII E V， ARYSHENSKII V Y， BEGLOV E D， et al. Investigation of subgrain and fine intermetallic participles size impact on grain boundary mobility in aluminum alloys with transitional metal addition［J］. Materials Today： Proceedings， 2019， 19： 2183-2188.
27	WU J， WANG X Q， WANG W， et al. Microstructure and strength of selectively laser melted AlSi10Mg［J］. Acta Materialia， 2016， 117： 311-320.
28	WANG H Y， WANG L， CUI R， et al. Differences in microstructure and nano-hardness of selective laser melted Inconel 718 single tracks under various melting modes of molten pool［J］. Journal of Materials Research and Technology， 2020， 9（5）： 10401-10410.
29	WANG X B， YU J Y， LIU J W， et al. Effect of process parameters on the phase transformation behavior and tensile properties of NiTi shape memory alloys fabricated by selective laser melting［J］. Additive Manufacturing， 2020， 36： 101545.
30	BANG G B， KIM W R， KIM H K， et al. Effect of process parameters for selective laser melting with SUS316L on mechanical and microstructural properties with variation in chemical composition［J］. Materials & Design， 2021， 197： 109221.
31	HERMANOVÁ Š， KUBOŇ Z， ČÍŽEK P， et al. Study of material properties and creep behavior of a large block of AISI 316L steel produced by SLM technology［J］. Metals， 2022， 12（8）： 1283.
32	NI C B， ZHU L D， ZHENG Z P， et al. Effect of material anisotropy on ultra-precision machining of Ti-6Al-4V alloy fabricated by selective laser melting［J］. Journal of Alloys and Compounds， 2020， 848： 156457.

元素	含量/wt%	元素	含量/wt%
Co	Bal	C	0.07
Ni	23.17	Cu	0.02
Cr	23.13	P	0.005
W	13.58	S	0.003
Fe	1.26	B	0.003
Mn	0.88	O	0.011
Si	0.39	N	0.008
La	0.03

试样号	激光功率/W	扫描速度/（mm·s^-1）	扫描间距/mm	层间转角/（°）
1	200	400	0.08	90
2	200	600	0.08	67
3	200	800	0.08	45
4	240	400	0.10	45
5	240	600	0.10	90
6	240	800	0.10	67
7	260	400	0.12	67
8	260	600	0.12	45
9	260	800	0.12	90

试样号	相对密度/%	顶面粗糙度/μm	侧面粗糙度/μm	顶面硬度/HV	侧面硬度/HV
3	98.75	11.7	15.7	296.7	299.8
5	98.49	15.9	16.4	278.2	293.3
6	97.84	19.2	20.6	284.3	304.6
9	98.28	17.5	19.4	285.4	298.2

[1]	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.
[2]	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.
[3]	Jiawei FU, Zefei YANG, Yahui CAI, Xiangfan NIE, Lehua QI. Identification method for anisotropic and high strain rate plasticity of sheet metals based on heterogeneous highspeed inertial impact and principle of virtual work [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(10): 229221-229221.
[4]	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.
[5]	Xuan CHENG, Yixi ZHAO, Shuman YOU. Trajectory optimization of robot-assisted flexible flanging [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023, 44(4): 426886-426886.
[6]	Yang SUN, Jian HUANG, Chenchen HAN, Zhenqiang ZHAO, Haili ZHOU, Fangfang SUN, Chao LI, Chao ZHANG, Liquan ZHANG. Comparison of in-plane mechanical properties of 2D and 3D woven composites [J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(18): 428267-428267.
[7]	Feiyan GUO, Jianhua LIU, Qingdong XIAO, Shihong XIAO, Zhongqi WANG. Monitoring and evaluation of working condition and adaptive control technology for digital assembly tooling [J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(16): 427914-427914.
[8]	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.
[9]	Jiangbo CHEN, Kai ZENG, Baoying XING, Hongshen ZHANG, Yanfang DING, Xiaocong HE. Aluminum alloy clinch-bonding with hot melt adhesive film and joint failure analysis [J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(14): 428029-428029.
[10]	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.
[11]	DUAN Yucong, WANG Xuede, ZHOU Xin, ZHANG Peiyu, GUO Xiyang, CHENG Xing, FAN Junwei. Machine learning of emission intensity signal of laser powder bed fusion molten pool [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(9): 425855-425855.
[12]	HUI Junpeng, WANG Ren, YU Qidong. Generating new quality flight corridor for reentry aircraft based on reinforcement learning [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(9): 325960-325960.
[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]	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.
[15]	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.

Microstructure and properties of GH5188 alloy fabricated by selective laser melting

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 19

References 32

Related Articles 15

Recommended Articles

Metrics

Comments