Near-net-shape Tungsten-Rhenium Alloy Parts Produced by Shrouded Plasma Spray Forming
W-5% (mass fraction) Re composite powder was fabricated by a new cladding method. W-5%Re nozzles used for solid rocket motor (SRM) were produced by shrouded plasma spray forming (PSF). The change regularity with the sintering time for the compact density, structure, micro-hardness, tensile strength...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | zho |
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Journal of Aeronautical Materials
2016-08-01
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| Series: | Journal of Aeronautical Materials |
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| Online Access: | http://jam.biam.ac.cn/CN/10.11868/j.issn.1005-5053.2016.4.004 |
| _version_ | 1818851016118894592 |
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| author | WANG Yueming CHEN Menghua LI Yue TANG Kewen DING Wangwang XIONG Xiang SHI Qilong XIE Lu XU Xuan |
| author_facet | WANG Yueming CHEN Menghua LI Yue TANG Kewen DING Wangwang XIONG Xiang SHI Qilong XIE Lu XU Xuan |
| author_sort | WANG Yueming |
| collection | DOAJ |
| description | W-5% (mass fraction) Re composite powder was fabricated by a new cladding method. W-5%Re nozzles used for solid rocket motor (SRM) were produced by shrouded plasma spray forming (PSF). The change regularity with the sintering time for the compact density, structure, micro-hardness, tensile strength and compression strength of the nozzel under 2300 ℃ vacuum sintering was studied. The study result indicates that the lamellae structure, and vertical columnar grains, micron-sized pores and rough interlamellar contacts with gaps of sub-micron sizes between lamellaes are found in PSF deposits. The relative density, micro-hardness, ultimate tensile strength (UTS) and compressive strength of PSF deposits are 87.5 %, 321.4 HV<sub>0.025</sub>, 57.9 MPa and 390.2 MPa respectively. With the sintering time prolonged from 2 h to 6 h and 8 h, the relative density and mechanical properties of W-Re alloy parts increase with the initial lamellar structure transformed into granular structure.After vacuum sintering for 8 h, the relative density, micro-hardness, UTS, compressive strength and yield strength increase to 98.6 %, 529.7 HV<sub>0.025</sub>, 384.7 MPa, 1466.5 MPa and 879.6 MPa respectively. For the addition of Re element, the recrystallization temperature and grain size of W-Re alloy are improved and effectively refined respectively. Thus, the strength and plasticity of the alloy can be improved remarkably, and the Re effect is revalidated and double checked in W-Re alloy fabricated by PSF and Vacuum sintering. |
| first_indexed | 2024-12-19T06:58:19Z |
| format | Article |
| id | doaj.art-fcd8dd4c72954334a85b329cb3ac166f |
| institution | Directory Open Access Journal |
| issn | 1005-5053 1005-5053 |
| language | zho |
| last_indexed | 2024-12-19T06:58:19Z |
| publishDate | 2016-08-01 |
| publisher | Journal of Aeronautical Materials |
| record_format | Article |
| series | Journal of Aeronautical Materials |
| spelling | doaj.art-fcd8dd4c72954334a85b329cb3ac166f2022-12-21T20:31:29ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50531005-50532016-08-01364243410.11868/j.issn.1005-5053.2016.4.00420160404Near-net-shape Tungsten-Rhenium Alloy Parts Produced by Shrouded Plasma Spray FormingWANG Yueming0CHEN Menghua1LI Yue2TANG Kewen3DING Wangwang4XIONG Xiang5SHI Qilong6XIE Lu7XU Xuan8Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan University of Science and Technology, Xiangtan 411201, Hunan China;College of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan China;College of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan China;College of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan China;College of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan China;State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China;Manganese Industry Group of Resources Institute, Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, China;State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China;Research and Development Center, Winner Tungsten Products Co., Ltd., Shenzhen 518048, Guangdong ChinaW-5% (mass fraction) Re composite powder was fabricated by a new cladding method. W-5%Re nozzles used for solid rocket motor (SRM) were produced by shrouded plasma spray forming (PSF). The change regularity with the sintering time for the compact density, structure, micro-hardness, tensile strength and compression strength of the nozzel under 2300 ℃ vacuum sintering was studied. The study result indicates that the lamellae structure, and vertical columnar grains, micron-sized pores and rough interlamellar contacts with gaps of sub-micron sizes between lamellaes are found in PSF deposits. The relative density, micro-hardness, ultimate tensile strength (UTS) and compressive strength of PSF deposits are 87.5 %, 321.4 HV<sub>0.025</sub>, 57.9 MPa and 390.2 MPa respectively. With the sintering time prolonged from 2 h to 6 h and 8 h, the relative density and mechanical properties of W-Re alloy parts increase with the initial lamellar structure transformed into granular structure.After vacuum sintering for 8 h, the relative density, micro-hardness, UTS, compressive strength and yield strength increase to 98.6 %, 529.7 HV<sub>0.025</sub>, 384.7 MPa, 1466.5 MPa and 879.6 MPa respectively. For the addition of Re element, the recrystallization temperature and grain size of W-Re alloy are improved and effectively refined respectively. Thus, the strength and plasticity of the alloy can be improved remarkably, and the Re effect is revalidated and double checked in W-Re alloy fabricated by PSF and Vacuum sintering.http://jam.biam.ac.cn/CN/10.11868/j.issn.1005-5053.2016.4.004W-Re alloy partshrouded plasma sprayingnear-net-shapevacuum sinteringmechanical property |
| spellingShingle | WANG Yueming CHEN Menghua LI Yue TANG Kewen DING Wangwang XIONG Xiang SHI Qilong XIE Lu XU Xuan Near-net-shape Tungsten-Rhenium Alloy Parts Produced by Shrouded Plasma Spray Forming Journal of Aeronautical Materials W-Re alloy part shrouded plasma spraying near-net-shape vacuum sintering mechanical property |
| title | Near-net-shape Tungsten-Rhenium Alloy Parts Produced by Shrouded Plasma Spray Forming |
| title_full | Near-net-shape Tungsten-Rhenium Alloy Parts Produced by Shrouded Plasma Spray Forming |
| title_fullStr | Near-net-shape Tungsten-Rhenium Alloy Parts Produced by Shrouded Plasma Spray Forming |
| title_full_unstemmed | Near-net-shape Tungsten-Rhenium Alloy Parts Produced by Shrouded Plasma Spray Forming |
| title_short | Near-net-shape Tungsten-Rhenium Alloy Parts Produced by Shrouded Plasma Spray Forming |
| title_sort | near net shape tungsten rhenium alloy parts produced by shrouded plasma spray forming |
| topic | W-Re alloy part shrouded plasma spraying near-net-shape vacuum sintering mechanical property |
| url | http://jam.biam.ac.cn/CN/10.11868/j.issn.1005-5053.2016.4.004 |
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