Chinese Journal of Mechanical Engineering >

2022 , Vol. 35 >Issue 3: 48 - 48

DOI: https://doi.org/10.1186/s10033-022-00712-5

Intelligent Manufacturing Technology

Microstructures, Thermal and Mechanical Properties of Pure Tungsten—A Comparison Between Selective Laser Melting and Hot Rolling

  • Chong Wang ,
  • Daobing Chen ,
  • Yan Zhou ,
  • Zhuoming Xie ,
  • Qianfeng Fang ,
  • Shifeng Wen ,
  • Chunze Yan
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  • 1. State Key Laboratory of Material Processing and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China;
    2. Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China;
    3. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China

收稿日期: 2020-03-24

  修回日期: 2021-05-26

  网络出版日期: 2022-10-24

基金资助

Supported by National Natural Science Foundation of China (Grant No. U1808216), Hubei Provincial Natural Science Foundation of China (Grant No. 2020CFB667), Hubei Provincial Key Research and Development Program of China (Grant No. 2020BAB045), Wuhan Second Ship Design and Research Institute (No. YT19201903), and the Sixth China Association of Science and Technology Youth Talents Invitation Project (No.YESS20200326)

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Microstructures, Thermal and Mechanical Properties of Pure Tungsten—A Comparison Between Selective Laser Melting and Hot Rolling

  • Chong Wang ,
  • Daobing Chen ,
  • Yan Zhou ,
  • Zhuoming Xie ,
  • Qianfeng Fang ,
  • Shifeng Wen ,
  • Chunze Yan
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  • 1. State Key Laboratory of Material Processing and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China;
    2. Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China;
    3. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China

Received date: 2020-03-24

  Revised date: 2021-05-26

  Online published: 2022-10-24

Supported by

Supported by National Natural Science Foundation of China (Grant No. U1808216), Hubei Provincial Natural Science Foundation of China (Grant No. 2020CFB667), Hubei Provincial Key Research and Development Program of China (Grant No. 2020BAB045), Wuhan Second Ship Design and Research Institute (No. YT19201903), and the Sixth China Association of Science and Technology Youth Talents Invitation Project (No.YESS20200326)

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摘要

A comparative study on the influence of different manufacturing methods (selective laser melting and hot rolling) on the microstructure, mechanical and thermal behaviours of tungsten (W) was presented for the first time. The results indicated that the selective laser melting (SLM) W exhibited a finer grain sizes, a lower strength ductility, hardness and thermal conductivity compared to hot-rolled W. The main reason for this result was that the laser underwent rapid heating and cooling when it was used to melt W powder with high energy density, resulting in large internal stress in the sample after manufacturing. Subsequently, the internal stress was released, leading to the generation of micro-cracks at the grain boundaries, thereby affecting the performance of SLM W samples. In addition, the higher fraction of high-angle grain boundaries (HAGBs) of SLM W was found to be the key factor for intrinsic brittleness. Because the HAGBs are the preferred crack paths, which could promote crack propagation and decrease fracture energy.

关键词： Tungsten (W); Selective laser melting (SLM); Hot rolling; Microstructure; Thermal conductivity; Mechanical property

本文引用格式

Chong Wang , Daobing Chen , Yan Zhou , Zhuoming Xie , Qianfeng Fang , Shifeng Wen , Chunze Yan . Microstructures, Thermal and Mechanical Properties of Pure Tungsten—A Comparison Between Selective Laser Melting and Hot Rolling[J]. Chinese Journal of Mechanical Engineering, 2022 , 35(3) : 48 -48 . DOI: 10.1186/s10033-022-00712-5

Abstract

A comparative study on the influence of different manufacturing methods (selective laser melting and hot rolling) on the microstructure, mechanical and thermal behaviours of tungsten (W) was presented for the first time. The results indicated that the selective laser melting (SLM) W exhibited a finer grain sizes, a lower strength ductility, hardness and thermal conductivity compared to hot-rolled W. The main reason for this result was that the laser underwent rapid heating and cooling when it was used to melt W powder with high energy density, resulting in large internal stress in the sample after manufacturing. Subsequently, the internal stress was released, leading to the generation of micro-cracks at the grain boundaries, thereby affecting the performance of SLM W samples. In addition, the higher fraction of high-angle grain boundaries (HAGBs) of SLM W was found to be the key factor for intrinsic brittleness. Because the HAGBs are the preferred crack paths, which could promote crack propagation and decrease fracture energy.

Key words： Tungsten (W); Selective laser melting (SLM); Hot rolling; Microstructure; Thermal conductivity; Mechanical property

参考文献

[1] E Lassner, W Schubert. Tungsten: Properties, chemistry, technology of the element, alloys, and chemical compounds. New York: Kluwer Academic, 1999.
[2] J Knaster, A Moeslang, T Muroga. Materials research for fusion. Nature Physics, 2016, 12: 424-434.
[3] P Gumbsch, J Riedle, A Hartmaier, et al. Controlling factors for the brittle-to-ductile transition in tungsten single crystals. Science, 1998, 282(5392): 1293-1295.
[4] X Zhang, Q Yan, S Lang, et al. Preparation of pure tungsten via various rolling methods and their influence on macro-texture and mechanical properties. Materials & Design, 2017, 126: 1-11.
[5] S Bonk, J Hoffmann, A Hoffmann, et al. Cold rolled tungsten (W) plates and foils: Evolution of the tensile properties and their indication towards deformation mechanisms. International Journal of Refractory Metals and Hard Materials, 2018, 70: 124-133.
[6] J K Lee, S Y Kim, R T Ott, et al. Effect of reinforcement phase on the mechanical property of tungsten nanocomposite synthesized by spark plasma sintering. International Journal of Refractory Metals and Hard Materials, 2016, 54: 14-18.
[7] D Hancock, D Homfray, M Porton, et al. Exploring complex high heat flux geometries for fusion applications enabled by additive manufacturing. Fusion Engineering and Design, 2018, 136: 454-460.
[8] S Wen, K Chen, W Li, et al. Selective laser melting of reduced graphene oxide/S136 metal matrix composites with tailored microstructures and mechanical properties. Materials and Design, 2019, 175: 107811.
[9] J Zhang, B Song, Q Wei, et al. A review of selective laser melting of aluminum alloys: Processing, microstructure, property and developing trends. Journal of Materials Science & Technology, 2019, 35(2): 270-284.
[10] S A Yavari, J van der Stok, Y C Chai, et al. Bone regeneration performance of surface-treated porous titanium. Biomaterials, 2014, 35(24): 6172-6181.
[11] M Leary, M Mazur, J Elambasseril, et al. Selective laser melting (SLM) of AlSi12Mg lattice structures. Materials & Design, 2016, 98: 344-357.
[12] W Li, Y Yang, J Liu, et al. Enhanced nanohardness and new insights into texture evolution and phase transformation of TiAl/TiB2 in-situ metal matrix composites prepared via selective laser melting. Acta Materialia, 2017, 136: 90-104.
[13] C Han, C Yan, S Wen, et al. Effects of the unit cell topology on the compression properties of porous Co-Cr scaffolds fabricated via selective laser melting. Rapid Prototyping Journal, 2017, 23(1): 16-27.
[14] S Wen, H Hu, Y Zhou, et al. Enhanced hardness and wear property of S136 mould steel with nano-TiB2 composites fabricated by selective laser melting method. Applied Surface Science, 2018, 457: 11-20.
[15] Y Zhou, X Zeng, Z Yang, et al. Effect of crystallographic textures on thermal anisotropy of selective laser melted Cu-2.4Ni-0.7Si alloy. Journal of Alloys and Compounds, 2018, 743: 258-261.
[16] M B Wang, R D Li, T C Yuan, et al. Microstructures and mechanical property of AlMgScZrMn-A comparison between selective laser melting, spark plasma sintering and cast. Materials Science & Engineering A, 2019, 756: 354-364.
[17] D Zhang, Q Cai, J Liu. Formation of nanocrystalline tungsten by selective laser melting of tungsten powder. Materials and Manufacturing Processes, 2012, 27(12): 1267-1270.
[18] R K Enneti, R Morgan, S V Atre. Effect of process parameters on the selective laser melting (SLM) of tungsten. International Journal of Refractory metals and Hard Materials, 2017, 71: 315-319.
[19] X Zhou, X Liu, D Zhang, et al. Balling phenomena in selective laser melted tungsten. Journal of Materials Processing Technology, 2015, 222: 33-42.
[20] D Z Wang, K L Li, C F Yu, et al. Cracking behavior in additively manufactured pure tungsten. Acta Metallurgica Sinica (English Letters), 2019, 32(1): 127-135.
[21] B Vrancken, W King, M Matthews. In-situ characterization of tungsten microcracking in selective laser melting. Procedia CIRP, 2018, 74: 107.
[22] S Wen, C Wang, Y Zhou, et al. High-density tungsten fabricated by selective laser melting: Densification, microstructure, mechanical and thermal performance. Optics & Laser Technology, 2019, 116: 128-138.
[23] C Tan, K Zhou, W Ma, et al. Selective laser melting of high-performance pure tungsten: Parameter design, densification behavior and mechanical properties. Science and Technology of Advanced Materials, 2018, 19(1): 370–380.
[24] D Wang, C Yu, X Zhou, et al. Dense pure tungsten fabricated by selective laser melting. Applied Sciences, 2017, 7(430): 1-13.
[25] Z M Xie, R Liu, S Miao, et al. High thermal shock resistance of the hot-rolled and swaged bulk W-ZrC alloys. Journal of Nuclear Materials, 2016, 469: 209-216.
[26] B Li, B Qian, Y Xu, et al. Additive manufacturing of ultrafine-grained austenitic stainless steel matrix composite via vanadium carbide reinforcement addition and selective laser melting: Formation mechanism and strengthening effect. Materials Science and Engineering: A, 2019, 745: 495-508.
[27] A Iveković, N Omidvari, B Vrancken, et al. Selective laser melting of tungsten and tungsten alloys. International Journal of Refractory Metals and Hard Materials, 2018, 72: 27-32.
[28] B Song, X Zhao, S Li, et al. Differences in microstructure and properties between selective laser melting and traditional manufacturing for fabrication of metal parts: A review. Frontiers of Mechanical Engineering, 2015, 10(2): 111-125.
[29] M Cloots, P J Uggowitzer, K Wegener. Investigations on the microstructure and crack formation of IN738LC samples processed by selective laser melting using Gaussian and doughnut profiles. Materials & Design, 2016, 89: 770-784.
[30] S Miao, Z M Xie, L F Zeng, et al. Mechanical properties, thermal stability and microstructure of fine-grained W-0.5 wt. % TaC alloys fabricated by an optimized multi-step process. Nuclear Materials and Energy, 2017, 13: 12-20.
[31] D Rupp, R Monig, P Gruber, et al. Fracture toughness and microstructural characterization of polycrystalline rolled tungsten. International Journal of Refractory Metals and Hard Materials, 2010, 28(6): 669-673.
[32] Z M Xie, S Miao, T Zhang, et al. Recrystallization behavior and thermal shock resistance of the W-1.0 wt% TaC alloy. Journal of Nuclear Materials, 2018, 501: 282-292.
[33] T Shen, Y Dai, Y Lee. Microstructure and tensile properties of tungsten at elevated temperatures. Journal of Nuclear Materials, 2016, 468: 348-354.
[34] T Dummer, J C Lasalvia, G Ravichandran, et al. Effect of strain rate on plastic flow and failure in polycrystalline tungsten. Acta Materialia, 1998, 46(17): 6267-6290.
[35] D Wang, Z Wang, K Li, et al. Cracking in laser additively manufactured W: Initiation mechanism and a suppression approach by alloying. Materials & Design, 2019, 162: 384-393.
[36] D Z Wang, K L Li, C F Yu, et al. Cracking behavior in additively manufactured pure tungsten. Acta Metallurgica Sinica (English Letters), 2018, 32: 127-135.
[37] K Li, D Wang, L Xing, et al. Crack suppression in additively manufactured tungsten by introducing secondary-phase nanoparticles into the matrix. International Journal of Refractory Metals and Hard Materials, 2019, 79: 158-163.
[38] Y Cheng, M Mrovec, P Gumbsch. Atomistic simulations of interactions between the 1/2(111) edge dislocation and symmetric tilt grain boundaries in tungsten. Philosophical Magazine, 2008, 88(4): 547-560.
[39] C Ren, Z Z Fang, L Xu, et al. An investigation of the microstructure and ductility of annealed cold-rolled tungsten. Acta Materialia, 2019, 162: 202-213.
[40] W C Oliver, G M Pharr. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments. Journal of Materials Research, 2011, 7(6): 1564–1583.
[41] H Attar, S Ehtemam-Haghighi, D Kent, et al. Nanoindentation and wear properties of Ti and Ti-TiB composite materials produced by selective laser melting. Materials Science and Engineering: A, 2017, 688: 20-26.
[42] D E J Armstrong, T B Britton. Effect of dislocation density on improved radiation hardening resistance of nano-structured tungsten-rhenium. Materials Science and Engineering A, 2014, 611: 388-393.
[43] G Pintsuk, H Kurishita, J Linke, et al. Thermal shock response of fine- and ultra-fine-grained tungsten-based materials. Physica Scripta, 2011, T145: 014060.
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