等离子活化烧结Ta-2Ti-<em>x</em>TiC复合材料的微观结构与力学性能

doi:10.19976/j.cnki.43-1448/TF.2022063

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Abstract Ta-2Ti-xTiC (x=0, 0.5, 1.0, 2.0 and 4.0, mass fraction, %) composites were prepared by plasma activated sintering method. The effects of TiC on the microstructure and mechanical properties of the composites were studied. The results show that with the increase of TiC content, the relative density of the composites increases first and then decreases, and the relative density of Ta-2Ti-0.5TiC reaches the highest value of 99.5%. The addition of TiC can inhibit the grain growth, and the grain size decreases with the increase of TiC content. When the TiC content is 4.0%, the grain size decreases to 2.98 µm. TiC undergoes decarburization reaction at high temperature, and the generated C reacts with Ta to generate high-hardness ceramic phase Ta₂C in situ, which plays a role in bridging matrix grains and hindering crack propagation. The mechanical properties of Ta-2Ti-TiC composites improve with increasing TiC content, which is attributed to the benefits from grain refinement and in-situ generation of Ta₂C high-hardness ceramic phase.

Key words： Ta-Ti-TiC plasma activated sintering densification mechanical properties microstructure

Received: 19 June 2022 Published: 27 January 2023

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	Articles by authors
	ZHANG Jian
	JIA Hao
	MA Shuai
	ZHANG Shiquan
	GE Shuai
	LUO Guoqiang
	SHEN Qiang

Cite this article:

ZHANG Jian,JIA Hao,MA Shuai, et al. Microstructure and mechanical properties of plasma activated sintered Ta-2Ti-xTiC composites[J]. Materials Science and Engineering of Powder Metallurgy, 2022, 27(6): 579-585.

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http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2022063 OR http://pmbjb.csu.edu.cn/EN/Y2022/V27/I6/579

[1] KIM Y, KIM E P, NOH J W, et al.Fabrication and mechanical properties of powder metallurgy tantalum prepared by hot isostatic pressing[J]. International Journal of Refractory Metals and Hard Materials, 2015, 48: 211-216.
[2] ZHANG Y P, CHEN X Z, JAYALAKSHMI S, et al.Replacement of Ta with equi-atomic radius Nb atoms in CoCrFeNiTa high entropy alloys: effect on microstructure and mechanical properties[J]. Materials Letters, 2021, 297: 129966.
[3] CHENG M, LI C, TANG M X, et al.Intragranular void formation in shock-spalled tantalum: mechanisms and governing factors[J]. Acta Materialia, 2018, 148: 38-48.
[4] DONG C, BI X, YU J, et al.Microstructural evolution and sintering kinetics during spark plasma sintering of pure tantalum powder[J]. Journal of Alloys and Compounds, 2019, 781: 84-92.
[5] 陈曼可, 刘咏, 徐圣航, 等. 碱热处理对Ti-Ta复合材料表面组织结构的影响[J]. 粉末冶金材料科学与工程, 2021, 26(3): 272-277.
CHEN Manke, LIU Yong, XU Shenghang, et al.The effect of alkali heat treatment on the structure of Ti-Ta composite materials[J]. Science and Engineering of Powder Metallurgy, 2021, 26(3): 272-277.
[6] ZHOU L B, YUAN T C, LI R D, et al.Selective laser melting of pure tantalum: Densification, microstructure and mechanical behaviors[J]. Materials Science and Engineering A, 2017, 707: 443-451.
[7] BISCHOF M, MAYER S, LEITNER H, et al.On the development of grain growth resistant tantalum alloys[J]. International Journal of Refractory Metals and Hard Materials, 2006, 24(6): 437-444.
[8] EFE M, KIM H J, CHANDRASEKAR S, et al.The chemical state and control of oxygen in powder metallurgy tantalum[J]. Materials Science and Engineering A, 2012, 544: 1-9.
[9] ZHANG Y S, ZHANG X M, WANG G, et al.High strength bulk tantalum with novel gradient structure within a particle fabricated by spark plasma sintering[J]. Materials Science and Engineering A, 2011, 528: 8332-8336.
[10] FILGUEIRA M, PINATTI D G, HOLANDA J N F D, et al. Densification and mechanical properties of liquid phase sintered tantalum[J]. Materialwissenschaft and Werkstofftechnik, 2009, 40(10): 784-790.
[11] WANG S, WU Z H, XIE M Y, et al.The effect of tungsten content on the rolling texture and microstructure of Ta-W alloys[J]. Materials Characterization, 2020, 159: 110067.
[12] DONG Z H, PENG X, WANG F H.Oxidation of a ZrB₂ coating fabricated on Ta-W alloy by electrophoretic deposition and laser melting[J]. Materials Letters, 2015, 148: 76-78.
[13] 李佳欣, 陈宇红, 白掌军, 等. Ta-Ti-Al-W合金1 000 ℃氧化行为研究[J]. 稀有金属材料与工程, 2021, 50(1): 195-200.
LI Jiaxin, CHEN Yuhong, BAI Zhangjun, et al.Study on oxidation behavior of Ta-Ti-Al-W alloy at 1 000 ℃[J]. Rare Metal Materials and Engineering, 2021, 50(1): 195-200.
[14] 许谅亮, 张霞, 肖来荣, 等. Nb-Ti-Al高温铌合金氧化行为研究[J]. 稀有金属与硬质合金, 2006, 34(4): 6-10.
XU Liangliang, ZHANG Xia, XIAO Lairong, et al.Study on oxidation behavior of Nb-Ti-Al high temperature Niobium alloy[J]. Rare Metals and Cemented Carbides, 2006, 34(4): 6-10.
[15] XU S H, LU T T, QIU J W, et al.Microstructure and mechanical properties of Ti-Ta based composites enhanced by in-situ formation of TiC particles[J]. Materials Characterization, 2021, 178: 111241.
[16] BROWNING P N, ALAGIC S, CAROLL B, et al.Room and ultrahigh temperature mechanical properties of field assisted sintered tantalum alloys[J]. Materials Science and Engineering A, 2016, 680: 141-151.
[17] GARAY J E.Current-activated, pressure-assisted densification of materials[J]. Annual Review of Materials Research, 2010, 40: 445-468.
[18] DIAS M, GUERREIRO F, CORREIA J B, et al.Consolidation of W-Ta composites: hot isostatic pressing and spark and pulse plasma sintering[J]. Fusion Engineering and Design, 2015, 98: 1950-1955.
[19] SEYYEDIN S, ZANGI H, BOZORGMEHR M, et al.The effect of mechanical alloying time on the microstructural and mechanical properties of spark plasma sintered Ta-10W[J]. Materials Science and Engineering A, 2020, 798: 140024.
[20] LI X Q, ZHANG M J, ZHANG G S, et al.Effect of spark plasma sintering temperature on structure and performance characteristics of Cu-20wt%W composite[J]. Journal of Alloys and Compounds, 2022, 912: 165246.
[21] ANGERER P, NEUBAUER E, YU L G, et al.Texture and structure evolution of tantalum powder samples during spark-plasma-sintering (SPS) and conventional hot-pressing[J]. International Journal of Refractory Metals and Hard Materials, 2007, 25(4): 280-285.
[22] GENC, COSKUN, ÖVECOGLU, et al. Decarburization of TiC in Ni activated sintered W-xTiC(x=0, 5%, 10%, 15%) composites and the effects of heat treatment on the microstructural and physical properties[J]. International Journal of Refractory Metals and Hard Materials, 2010, 28(3): 451-458.
[23] 张顺. 碳化物增强W合金组织结构及其力学性能的研究[D]. 长沙: 中南大学, 2012.
ZHANG Shun.Study on microstructure and mechanical properties of carbide reinforced W alloy[D]. Changsha: Central South University, 2012.
[24] 周寰林, 王鑫, 胡殷, 等. TaC与Ta₂C的第一性原理研究[J]. 稀有金属, 2017, 41(11): 1251-1257.
ZHOU Huanlin, WANG Xin, HU Yin, et al.First-principles study of TaC and Ta₂C[J]. Rare Metals, 2017, 41(11): 1251-1257.
[25] 闫志巧, 熊翔, 肖鹏, 等. Ta-C化合反应生成TaC的过程[J]. 稀有金属材料与工程, 2006, 35(S2): 209-212.
YAN Zhiqiao, XIONG Xiang, XIAO Peng, et al.The process of Ta-C compound reaction to form TaC[J]. Rare Metal Materials and Engineering, 2006, 35(S2): 209-212.
[26] NISAR A, ARIHATAN S, BALANI K.Densification kinetics and mechanical properties of tantalum carbide[J]. International Journal of Refractory Metals and Hard Materials, 2018, 73: 221-230.