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Microstructure and Mechanical Properties of Nano-Size Zirconium Carbide Dispersion Strengthened Tungsten Alloys Fabricated by Spark Plasma Sintering Method

文献类型：期刊论文

作者Xie Zhuoming1,2; Liu Rui1; Fang Qianfeng1,2; Zhang Tao1; Jiang Yan1; Wang Xianping1; Liu Changsong1
刊名PLASMA SCIENCE & TECHNOLOGY
出版日期2015-12-01
卷号17期号:12页码:1066-1071
关键词Tungsten Zirconium Carbide Mechanical Property Dispersion Strengthening
DOI10.1088/1009-0630/17/12/15
文献子类Article
英文摘要W-(0.2, 0.5, 1.0)wt% ZrC alloys with a relative density above 97.5% were fabricated through the spark plasma sintering (SPS) method. The grain size of W-1.0wt% ZrC is about 2.7 mu m, smaller than that of pure W and W-(0.2, 0.5)wt% ZrC. The results indicated that the W-ZrC alloys exhibit higher hardness at room temperature, higher tensile strength at high temperature, and a lower ductile to brittle transition temperature (DBTT) than pure W. The tensile strength and total elongation of W-0.5wt% ZrC alloy at 700 degrees C is 535 MPa and 24.8%, which are respectively 59% and 114% higher than those of pure W (337 MPa, 11.6%). The DBTT of W-(0.2, 0.5, 1.0)wt% ZrC materials is in the range of 500 degrees C-600 degrees C, which is about 100 degrees C lower than that of pure W. Based on microstructure analysis, the improved mechanical properties of the W-ZrC alloys were suggested to originate from the enhanced grain boundary cohesion by ZrC capturing the impurity oxygen in tungsten and nano-size ZrC dispersion strengthening.
WOS关键词RESISTANCE ; CRYSTALS ; FRACTURE ; DIVERTOR ; METALS
WOS研究方向Physics
语种英语
WOS记录号WOS:000367515600015
资助机构Chinese Academy of Sciences(KJCX2-YW-N35) ; Chinese Academy of Sciences(KJCX2-YW-N35) ; Chinese Academy of Sciences(KJCX2-YW-N35) ; Chinese Academy of Sciences(KJCX2-YW-N35) ; National Magnetic Confinement Fusion Science Program of China(2011GB108004) ; National Magnetic Confinement Fusion Science Program of China(2011GB108004) ; National Magnetic Confinement Fusion Science Program of China(2011GB108004) ; National Magnetic Confinement Fusion Science Program of China(2011GB108004) ; National Natural Science Foundation of China(51301164 ; National Natural Science Foundation of China(51301164 ; National Natural Science Foundation of China(51301164 ; National Natural Science Foundation of China(51301164 ; Anhui Provincial Natural Science Foundation of China(1408085QE77) ; Anhui Provincial Natural Science Foundation of China(1408085QE77) ; Anhui Provincial Natural Science Foundation of China(1408085QE77) ; Anhui Provincial Natural Science Foundation of China(1408085QE77) ; 11075177 ; 11075177 ; 11075177 ; 11075177 ; 11274305) ; 11274305) ; 11274305) ; 11274305) ; Chinese Academy of Sciences(KJCX2-YW-N35) ; Chinese Academy of Sciences(KJCX2-YW-N35) ; Chinese Academy of Sciences(KJCX2-YW-N35) ; Chinese Academy of Sciences(KJCX2-YW-N35) ; National Magnetic Confinement Fusion Science Program of China(2011GB108004) ; National Magnetic Confinement Fusion Science Program of China(2011GB108004) ; National Magnetic Confinement Fusion Science Program of China(2011GB108004) ; National Magnetic Confinement Fusion Science Program of China(2011GB108004) ; National Natural Science Foundation of China(51301164 ; National Natural Science Foundation of China(51301164 ; National Natural Science Foundation of China(51301164 ; National Natural Science Foundation of China(51301164 ; Anhui Provincial Natural Science Foundation of China(1408085QE77) ; Anhui Provincial Natural Science Foundation of China(1408085QE77) ; Anhui Provincial Natural Science Foundation of China(1408085QE77) ; Anhui Provincial Natural Science Foundation of China(1408085QE77) ; 11075177 ; 11075177 ; 11075177 ; 11075177 ; 11274305) ; 11274305) ; 11274305) ; 11274305)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22223]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Xie Zhuoming,Liu Rui,Fang Qianfeng,et al. Microstructure and Mechanical Properties of Nano-Size Zirconium Carbide Dispersion Strengthened Tungsten Alloys Fabricated by Spark Plasma Sintering Method[J]. PLASMA SCIENCE & TECHNOLOGY,2015,17(12):1066-1071.
APA Xie Zhuoming.,Liu Rui.,Fang Qianfeng.,Zhang Tao.,Jiang Yan.,...&Liu Changsong.(2015).Microstructure and Mechanical Properties of Nano-Size Zirconium Carbide Dispersion Strengthened Tungsten Alloys Fabricated by Spark Plasma Sintering Method.PLASMA SCIENCE & TECHNOLOGY,17(12),1066-1071.
MLA Xie Zhuoming,et al."Microstructure and Mechanical Properties of Nano-Size Zirconium Carbide Dispersion Strengthened Tungsten Alloys Fabricated by Spark Plasma Sintering Method".PLASMA SCIENCE & TECHNOLOGY 17.12(2015):1066-1071.

入库方式： OAI收割

来源：合肥物质科学研究院

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