|
|
Effect of Heat Treatment on Microstructure and Mechanical Properties of Nickel-Based Powder Metallurgy Superalloy Processed by Selective Laser Melting |
HAO Zhibo1, GE Changchun1(), LI Xinggang2, TIAN Tian1, JIA Chonglin3 |
1 School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2 SUSTech Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China 3 Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China |
|
Cite this article:
HAO Zhibo, GE Changchun, LI Xinggang, TIAN Tian, JIA Chonglin. Effect of Heat Treatment on Microstructure and Mechanical Properties of Nickel-Based Powder Metallurgy Superalloy Processed by Selective Laser Melting. Acta Metall Sin, 2020, 56(8): 1133-1143.
|
Abstract Nickel-based powder metallurgy superalloys have the characteristics of uniform structure, fine grains and no macrosegregation. Due to their excellent mechanical properties, such as excellent fatigue resistance, creep resistance, excellent high-temperature strength and crack propagation resistance, they have become the preferred materials for critical hot-end components such as aero engine turbine disks. Selective laser melting (SLM) has a high ability to form complex shape of parts, reducing post-machining procedures and completing efficient productions with low component volumes, so it has become a new technical route for the preparation of superalloys. In this work, the FGH4096M alloy was prepared by SLM technique with pre-powders prepared by vacuum induction argon atomization method. The microstructure and mechanical properties of the as build and heat-treated (HTed) alloys were investigated by OM, SEM, EBSD and so on. The as build alloy with a small number of γ' and carbide, mainly composed of austenite matrix γ phase, has the highest elongation. After heat treatment, a large amount of γ' phase precipitated in the alloy, which is one of the main factors affecting the mechanical properties of the alloy. The uniform and dense distribution of γ' precipitates in the alloy can significantly improve the strength. A higher lattice distortion between the γ' phase with cubic or petaloid shape and matrix can increase the strength of the alloy to some extent. Fine dendritic and equiaxed structures in SLM FGH4096M can improve the property of the alloy as fine grain strengthening. The higher solution temperature promotes the recovery and recrystallization of the SLM alloy, and eliminates the intra-crystal dendritics and equiaxed structures. The average elongation of the as build alloy is 24.97%. The yield strength and ultimate strength of the SLM FGH4096M alloy after direct ageing treatment are the highest, and the average values are 1459.46 and 1595.56 MPa, respectively.
|
Received: 04 November 2019
|
|
Fund: National Natural Science Foundation of China(51171016) |
[1] |
Tan L M, Jia J, Zhang Y W. Strengthening effect of alloying elements on powder metallurgical FGH97 superalloys [J]. Rare Met. Mater. Eng., 2017, 46: 1578
|
|
(谭黎明, 贾 建, 张义文. 合金元素对镍基粉末高温合金FGH97的强化作用 [J]. 稀有金属材料与工程, 2017, 46: 1578)
|
[2] |
Tian T, Hao Z B, Jia C L, et al. Microstructure and properties of a new third generation powder metallurgy superalloy FGH100L [J]. Acta Metall. Sin., 2019, 55: 1260
doi: 10.11900/0412.1961.2018.00500
|
|
(田 甜, 郝志博, 贾崇林等. 新型第三代粉末高温合金FGH100L的显微组织与力学性能 [J]. 金属学报, 2019, 55: 1260)
doi: 10.11900/0412.1961.2018.00500
|
[3] |
Liu Y H, Ning Y Q, Yao Z K, et al. Plastic deformation and dynamic recrystallization of a powder metallurgical nickel-based superalloy [J]. J. Alloys Compd., 2016, 675: 73
doi: 10.1016/j.jallcom.2016.03.093
|
[4] |
Ning Y Q, Yao Z K, Yue T W, et al. Link microstructure of FGH4096 alloy [J]. Rare Met. Mater. Eng., 2009, 38: 1783
|
|
(宁永权, 姚泽坤, 岳太文等. FGH4096合金“项链”组织研究 [J]. 稀有金属材料与工程, 2009, 38: 1783)
|
[5] |
Peng Z C, Tian G F, Jiang J, et al. Mechanistic behaviour and modelling of creep in powder metallurgy FGH96 nickel superalloy [J]. Mater. Sci. Eng., 2016, A676: 441
|
[6] |
Liu C Z, Liu F, Huang L, et al. Effect of hot extrusion and heat treatment on microstructure of nickel-base superalloy [J]. Trans. Nonferrous Met. Soc. China, 2014, 24: 2544
doi: 10.1016/S1003-6326(14)63381-1
|
[7] |
Chen Z, Xiang Y, Wei Z Y, et al. Thermal dynamic behavior during selective laser melting of K418 superalloy: Numerical simulation and experimental verification [J]. Appl. Phys., 2018, 124A: 313
|
[8] |
Choi J P, Shin G H, Yang S S, et al. Densification and microstructural investigation of Inconel 718 parts fabricated by selective laser melting [J]. Powder Technol., 2017, 310: 60
doi: 10.1016/j.powtec.2017.01.030
|
[9] |
Li J, Zhao Z Y, Bai P K, et al. Microstructural evolution and mechanical properties of IN718 alloy fabricated by selective laser melting following different heat treatments [J]. J. Alloys Compd., 2019, 772: 861
doi: 10.1016/j.jallcom.2018.09.200
|
[10] |
Deng D Y, Peng R L, Brodin H, et al. Microstructure and mechanical properties of Inconel 718 produced by selective laser melting: Sample orientation dependence and effects of post heat treatments [J]. Mater. Sci. Eng., 2018, A713: 294
|
[11] |
Strὂßner J, Terock M, Glatzel U. Mechanical and microstructural investigation of nickel-based superalloy IN718 manufactured by selective laser melting (SLM) [J]. Adv. Eng. Mater., 2015, 17: 1099
doi: 10.1002/adem.201500158
|
[12] |
Nadammal N, Cabeza S, Mishurova T, et al. Effect of hatch length on the development of microstructure, texture and residual stresses in selective laser melted superalloy Inconel 718 [J]. Mater. Des., 2017, 134: 139
doi: 10.1016/j.matdes.2017.08.049
|
[13] |
Hao Z B, Tian T, Li X G, et al. Microstructure and mechanical properties of powder metallurgy superalloy FGH4096 fabricated by selective laser melting [J]. Chin. J. Rare Met., 2020, 44: 476
|
|
(郝志博, 田 甜, 黎兴刚等. 选区激光熔化FGH4096高温合金的组织与性能 [J]. 稀有金属, 2020, 44: 476)
|
[14] |
Muñoz-Moreno R, Divya V D, Messé O M D M, et al. Effect of heat treatments on the microstructure and texture of CM247LC processed by selective laser melting [A]. Superalloys 2016: Proceedings of the 13th International Symposium on Superalloys [C]. Warrendale, PA: TMS, 2016: 375
|
[15] |
Messé O M D M, Muñoz-Moreno R, Illston T, et al. Metastable carbides and their impact on recrystallisation in IN738LC processed by selective laser melting [J]. Addit. Manuf., 2018, 22: 394
|
[16] |
Wang Z M, Guan K, Gao M, et al. The microstructure and mechanical properties of deposited-IN718 by selective laser melting [J]. J. Alloys Compd., 2012, 513: 518
doi: 10.1016/j.jallcom.2011.10.107
|
[17] |
Divya V D, Muñoz-Moreno R, Messé O M D M, et al. Microstructure of selective laser melted CM247LC nickel-based superalloy and its evolution through heat treatment [J]. Mater. Charact., 2016, 114: 62
doi: 10.1016/j.matchar.2016.02.004
|
[18] |
Holland S, Wang X Q, Chen J, et al. Multiscale characterization of microstructures and mechanical properties of Inconel 718 fabricated by selective laser melting [J]. J. Alloys Compd., 2019, 784: 182
doi: 10.1016/j.jallcom.2018.12.380
|
[19] |
Li S, Wei Q S, Shi Y S, et al. Microstructure characteristics of Inconel 625 superalloy manufactured by selective laser melting [J]. J. Mater. Sci. Technol., 2015, 31: 946
doi: 10.1016/j.jmst.2014.09.020
|
[20] |
Kunze K, Etter T, Grässlin J, et al. Texture, anisotropy in microstructure and mechanical properties of IN738LC alloy processed by selective laser melting (SLM) [J]. Mater. Sci. Eng., 2015, A620: 213
|
[21] |
Davies S J, Jeffs S P, Coleman M P, et al. Effects of heat treatment on microstructure and creep properties of a laser powder bed fused nickel superalloy [J]. Mater. Des., 2018, 159: 39
doi: 10.1016/j.matdes.2018.08.039
|
[22] |
Chlebus E, Gruber K, Kuźnicka K, et al. Effect of heat treatment on the microstructure and mechanical properties of Inconel 718 processed by selective laser melting [J]. Mater. Sci. Eng., 2015, A639: 647
|
[23] |
Hirsch M, Catchpole-Smith S, Patel R, et al. Meso-scale defect evaluation of selective laser melting using spatially resolved acoustic spectroscopy [J]. Proc. R. Soc. London, 2017, 473A: 20170194
|
[24] |
Marchese G, Lorusso M, Calignano F, et al. Inconel 625 by direct metal laser sintering: Effects of the process parameters and heat treatments on microstructure and hardness [A]. Superalloys 2016: Proceedings of the 13th International Symposium on Superalloys [C]. Warrendale, PA: TMS, 2016: 1013
|
[25] |
Jia C L, Zhang F L, Li Y, et al. Investigation on microstructure evolution of a new disk superalloy under different hot process [J]. Met. Powder Rep., 2018, 73: 319
doi: 10.1016/j.mprp.2018.02.001
|
[26] |
Hao Z B, Tian T, Yang Y, et al. Effect of post-treatments on microstructure and mechanical properties of a novel nickel-based powder metallurgy superalloy processed by selective laser melting [J]. Mater. Res. Express, 2019, DOI: 10.1088/2053-1591/ab4108
doi: 10.1088/2053-1591/3/9/094001
pmid: 32391160
|
[27] |
Kanagarajah P, Brenne F, Niendorf T, et al. Inconel 939 processed by selective laser melting: Effect of microstructure and temperature on the mechanical properties under static and cyclic loading [J]. Mater. Sci. Eng., 2013, A588: 188
|
[28] |
Tomus D, Tian Y, Rometsch P A, et al. Influence of post heat treatments on anisotropy of mechanical behaviour and microstructure of Hastelloy-X parts produced by selective laser melting [J]. Mater. Sci. Eng., 2016, A667: 42
|
[29] |
Hao Z B, Tian T, Peng S Q, et al. Effect of heat treatment on microstructure and properties of FGH4096M superalloy processed by selective laser melting [J]. Met. Mater. Int., 2019, DOI: 10.1007/s12540-019-00467-0
|
[30] |
Academic Committee of the Superalloys, CMS. China Superalloys Handbook (Book 2) [M]. Beijing: China Quality Inspection Press, Standards Press of China, 2012: 635
|
|
(中国金属学会高温材料分会. 中国高温合金手册(下卷) [M]. 北京: 中国质检出版社, 中国标准出版社, 2012: 635)
|
[31] |
Dong K X, Yuan C, Gao S, et al. Creep properties of a powder metallurgy disk superalloy at 700 ℃ [J]. J. Mater. Res., 2017, 32: 624
doi: 10.1557/jmr.2016.510
|
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
|
Shared |
|
|
|
|
|
Discussed |
|
|
|
|