WC含量对TiB<sub>2</sub>基金属陶瓷微观组织与力学性能的影响

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Abstract The TiB₂-WC-0.8Cr₃C₂-20(Co/Ni) (mass fraction, %) cermets (w(WC) are 0-20%) with high-density were prepared by powder metallurgy (P/M) method. The effects of WC content on the microstructure and mechanical properties of TiB₂-based cermets were investigated. The results indicate that with the increase of WC content, the solubility of TiB₂ in the bonded phase decreases, and the TiB₂/ bonded phase interface decreases, which makes the grains of TiB₂ based cermets finer and more uniform. In addition, the addition of WC can significantly improve the mechanical properties of TiB₂ based cermets. When w (WC) is 15%, the properties of cermets are the best, and the hardness (HRA), bending strength and relative density reach 92.6±0.2, (1 256±65) MPa and (99.65±0.20)%, respectively. However, the addition of excessive WC (20%) will lead to the partial agglomeration of WC phase and the formation of decarburized phase W₂C, which will reduce the mechanical properties of TiB₂ based cermets.

Key words： mechanical properties microstructure TiB₂-based cermet WC addition grain refinement

Received: 22 February 2021 Published: 26 September 2021

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	WANG Shuai
	WANG Jianying
	LOU Jia
	WANG Jiong
	ZHANG Xiang
	YANG Hailin

Cite this article:

WANG Shuai,WANG Jianying,LOU Jia, et al. Effects of WC content on the microstructure and mechanical properties of TiB₂-based cermets[J]. Materials Science and Engineering of Powder Metallurgy, 2021, 26(4): 298-305.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2021/V26/I4/298

[1] 李苏, 李俊寿, 赵芳, 等. TiB₂材料的研究现状[J]. 材料导报, 2013, 5(5): 34-38.
LI Su, LI Junshou, ZHAO Fang, et al.Research status of TiB₂ materials[J]. Materials Guide, 2013, 5(5): 34-38.
[2] BASU B, RAJU GB, SURI AK.Processing and properties of monolithic TiB₂ based materials[J]. International Materials Reviews, 2006, 51(6): 354-374.
[3] SUBRAMANIAN C, SURI AK.Development of boron based neutron absorber materials[J]. Met Mater Process, 2004, 16(1): 39-52.
[4] MURTHY T S R Ch, SONBER J K, SUBRAMANIAN C, et al. Densification and oxidation behavior of a novel TiB₂-MoSi₂-CrB₂ composite[J]. International Journal of Refractory Metals & Hard Materials, 2013, 36: 243-253.
[5] WU N, XUE F D, WANG J Y, et al.Effect of TiN addition on the microstructure and mechanical properties of TiB₂-FeNi based cermets[J]. Materials Science and Engineering A, 2019, 743: 546-557.
[6] EINARSURD M A, HAGEN E, PETTERSE G, et al.Pressureless sintering of titanium diboride with nickel, nickel boride, and iron additives[J]. Journal of the American Ceramic Society, 2005, 80(12): 3013-3020.
[7] 安晶. TiB₂基增韧补强型陶瓷刀具的制备工艺及性能研究[D].太原: 太原理工大学, 2018.
AN Jing.Study on preparation process and properties of TiB₂-based toughening and reinforcing ceramic tool[D]. Taiyuan: Taiyuan University of Technology, 2018.
[8] BAIK S, BECHER P F.Effect of oxygen contamination on densification of TiB₂[J]. Journal of the American Ceramic Societ, 2010, 70(8): 527-530.
[9] WANG W M, FU Z Y, WANG H, YUAN R Z.Influence of hot pressing sintering temperature and time on microstructure and mechanical properties of TiB₂ ceramics[J]. Journal of the European Ceramic Society, 2002, 22(7): 1045-1049.
[10] HEIDARI H, ALAMDARI H, DUBE D, et al.Interaction of molten aluminum with porous TiB₂-based ceramics containing Ti-Fe additives[J]. Journal of the European Ceramic Society, 2012, 32(4): 937-945.
[11] NGUYEN V H, SHAHEDI A M, HAMIDZADEH M Z, et al.Role of co-addition of BN and SiC on microstructure of TiB₂-based composites densified by SPS method[J]. Ceramics International, 2020, 46(16): 25341-25350.
[12] GHAFURI F, AHMADIAN M, EMADI R, et al.Effects of SPS parameters on the densification and mechanical properties of TiB₂-SiC composite[J]. Ceramics International, 2019,45(8): 10550-10557.
[13] YAN S R, LYU Z, FOONG L K.Effects of SiC amount and morphology on the properties of TiB₂-based composites sintered by hot-pressing[J]. Ceramics International, 2020,46(11): 18813-18825.
[14] MA L, YU J C, GUO X, et al.Preparation and sintering of ultrafine TiB₂ powders[J]. Ceramics International, 2018, 44(4): 4491-4495.
[15] RAN S L, VAN der B O, VLEUGELS J. In situ platelet-toughened TiB₂-SiC composites prepared by reactive pulsed electric current sintering[J]. Scripta Materialia, 2011, 64(12): 1145-1148.
[16] LI L H, KIM H E, SON K E.Sintering and mechanical properties of titanium diboride with aluminum nitride as a sintering aid[J]. Journal of the European Ceramic Society, 2002, 22(6): 973-977.
[17] 郭峰, 李历坚. TiB₂基陶瓷材料的研发进展与展望[J]. 粉末冶金材料科学与工程, 2009, 14(5): 285-289.
GUO Feng, LI Lijian.Development and prospect of TiB₂ based ceramic materials[J]. Powder Metallurgy Materials Science and Engineering, 2009, 14(5): 285-289.
[18] SRIVATSAN T S, GURUPRASAD G, BLACK D, et al.Microstructural development and hardness of TiB₂-B₄C composite samples: Influence of consolidation temperature[J]. Journal of Alloys and Compounds, 2006, 413(1): 63-72.
[19] GU M L, HUANG C Z, XIAO S R, et al.Improvements in mechanical properties of TiB₂ ceramics tool materials by the dispersion of Al₂O₃ particles[J]. Materials Science and Engineering A, 2007, 486(1): 167-170.
[20] MURTHY TAMMANA S R, BASU B, BALASUBRAMANIAM R, et al. Processing and properties of TiB₂ with MoSi₂ sinter-additive: A first report[J]. Journal of the American Ceramic Society, 2010, 89(1): 131-138.
[21] WANG S W, ZHENG Y, ZHANG G T, et al.Effect of NbC addition on the microstructure, mechanical properties and thermal shock resistance of Ti(C,N)-based cermets[J]. Materials Research Express, 2019,6(5): 056557.
[22] KANG S H, KIM D J, KANG E S, et al.Pressureless sintering and properties of titanium diboride ceramics containing chromium and iron[J]. Journal of the American Ceramic Society, 2010, 84(4): 893-895.
[23] 周书助, 汤郡, 尹绍峰, 等. TiB₂基硬质材料的研究进展[J]. 硬质合金, 2016, 33(6): 428-436.
ZHOU Shuzhu, TANG Jun, YIN Shaofeng, et al.Research progress of TiB₂ based cemented carbide[J]. Cemented Carbide, 2016, 33(6): 428-436.
[24] WAN W C, XIONG J, GUO Z X, et al.Effects of Cr₃C₂ addition on the corrosion behavior of Ti(C,N)-based cermets[J]. International Journal of Refractory Metals & Hard Materials, 2013, 39(6): 6019-6028.
[25] ZHAN B, LIU N, JIN Z B, et al.Effect of VC/Cr₃C₂ on microstructure and mechanical properties of Ti(C,N)-based cermets[J]. Transactions of Nonferrous Metals Society of China, 2012, 22(5): 1096-1105.
[26] PING Feng, HE Yuehui, et al.Effect of VC addition on sinterability and microstructure of ultrafine Ti(C,N)-based cermets in spark plasma sintering[J]. Journal of Alloys and Compounds, 2008, 460(1/2): 453-459.
[27] ZHENG Y, YOU M, XIONG W, et al.Effect of Cr₃C₂ on valence-electron structure and plasticity of rim phase in Ti(C,N)-based cermets[J]. Journal of the American Ceramic Society, 2010, 87(3): 460-464.
[28] HUANG J H, HUANG S G, ZHOU P, et al.Microstructure and mechanical properties of WC or Mo₂C modified NbC-Ni cermets[J]. International Journal of Refractory Metals and Hard Materials, 2020, 95(2): 105440.
[29] WALTER L, FABIO S.Ti(C,N)-based cermets: critical review of achievements and recent developments[J]. Solid State Phenom, 2018, 274: 53-100.
[30] WANG H, WANG B, LI S, et al.Toughening magnetron sputtered TiB₂ coatings by Ni addition[J]. Surface & Coatings Technology, 2013, 232: 767-774.
[31] ZHAO Y, HUANG C Z, ZOUB, et al. Effects of sintering processes on mechanical properties and microstructure of TiB₂-TiC+8% nano-Ni composite ceramic cutting tool material[J]. Materials Science & Engineering A, 2012, 540: 235-244.
[32] PENG Y, MIAO H, PENG Z.Development of TiCN-based cermets: Mechanical properties and wear mechanism[J]. International Journal of Refractory Metals & Hard Materials, 2013, 39(7): 78-89.
[33] ZENG W M, GAN X P, LI Z Y, et al.Effect of WC addition on the microstructure and mechanical properties of TiN-based cermets[J]. Ceramics International, 2017, 43(1): 167-173.
[34] 史晓亮, 邵刚勤, 段兴龙, 等. 超细硬质合金晶粒生长抑制剂VC、Cr₃C₂作用机理的研究[J]. 硬质合金, 2006, 23(4): 193-197.
SHI Xiaoliang, SHAO Gangqin, DUAN Xinglong, et al.Study on the mechanism of VC and Cr₃C₂ in ultrafine cemented carbide[J]. Cemented Carbide, 2006, 23(4): 193-197.
[35] ABBAS S N, ZOHRE A, AZIZ B, et al.Microstructure and thermomechanical characteristics of spark plasma sintered TiC ceramics doped with nano-sized WC[J]. Ceramics International, 2019, 45(2): 2153-2160.
[36] SHANKAR E, BALASIVANANDHA PRABU S.Influence of WC and cobalt additions on the microstructural and mechanical properties of TiCN-Cr₃C₂-nano-TiB₂ cermets fabricated by spark plasma sintering[J]. International Journal of Refractory Metals and Hard Materials, 2017, 69: 110-118.
[37] JI W, ZHANG J, WANG W, et al.Fabrication and properties of TiB₂-based cermets by spark plasma sintering with CoCrFeNiTiAl high-entropy alloy as sintering aid[J]. Journal of the European Ceramic Society, 2015, 35(3): 879-886.
[38] MUKHOPADHYAY A, VENKATESWARAN T, BASU B.Spark plasma sintering may lead to phase instability and inferior mechanical properties: A case study with TiB₂[J]. Scripta Materialia, 2013, 69(2):159-164.