Research and Application of Materials Science

The effect of binder phase content on WC-AlCoCrFeNiTi0.2 high entropy cemented carbides microstructure and mechanical properties

WENYuxin (State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing), ZHANGMingchen (Inspection and Certification Co., Ltd., MCC), ZHANGYong (State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing)

Abstract


This work aims to explore WC-G201 high entropy cemented carbides properties fabricated by spark plasma sintering with AlCoCrFeNiTi0.2 and WC as binder phase and hard phase respectively. AlCoCrFeNiTi0.2 powder and WC powder were mixed at the mass ratio of 5: 95, 10: 90 and 15: 85 respectively, and then via SPS at 1300℃ for 5min. The results show that the binder phase has good wettability to WC, and with the increase of binder phase content, the hardness of the alloy decreases gradually, fracture toughness increases first and then decreases, the maximum value is 7.88 MPa m1/2. It is estimated that the comprehensive mechanical property of cemented carbides is the best when the binder content is between 5wt% and 10wt%.

Keywords


High entropy alloys; cemented carbides; binder phase

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References


Yang J G, Dai Y. Development trend of cemented carbides and preparation technology of special powder [J]. Rare metals and hard metals, 2011(1): 48-51.

Chu K Y. Development status and prospect of Chinese cemented carbides industry [J]. Rare metals and hard metals, 2011, 39(1): 52-56.

Kim H C, Shon I J, Garay J E, et al.. Consolidation and properties of binderless sub-micron tungsten carbide by field-activated sintering [J]. International Journal of Refractory Metals and Hard Materials, 2004, 22(6): 257-264.

Ji W, Wang W, Wang H, et al.. Alloying Behavior and Novel Properties of CoCrFeNiMn High-Entropy Alloy Fabricated by Mechanical Alloying and Spark Plasma Sintering [J]. Intermetallics, 2015(56): 24-27.

Tong C J, Chen M R, Yeh J W, et al. Mechanical Performanceof The AlxCoCrCuFeNi High-Entropy Alloy System withMultiprincipal Elements [J]. Metallurgical and MaterialsTransactions A, 2005, 36(5): 1263-1271.

Varalakshmi S, Rao G A, Kamaraj M, et al.. HotConsolidation and Mechanical Properties ofNanocrystalline Equiatomic AlFeTiCrZnCu High EntropyAlloy after Mechanical Alloying [J]. Journal of materialsscience, 2010, 45(19): 5158-5163.

Song X F, Zhang Y. Research progress of high entropy alloys[J]. Powder Metallurgy Technology, 2022, 40(5): 451-457.

Zhang Y. Discovery and development of high entropy alloys[J]. Journal of Sichuan Normal University, 2022, 45(6):711-722.

Kwak B W, Song J H, Kim B S, et al.. International Journal ofRefractory Metals and Hard Materials, 2016(54): 244-250.

Zhuang Y X, Xue H D, Chen Z Y, et al.. Effect of AnnealingTreatment on Microstructures And Mechanical Propertiesof FeCoNiCuAl High Entropy Alloys[J]. Materials Scienceand Engineering: A, 2013(572): 30-35.

Luo W Y, Liu Y Z, Tu C. Wetting behaviors and interfacialcharacteristics of molten AlxCoCrCuFeNi high-entropyalloys on a WC substrate [J]. Journal of Materials Science &Technology, 2021(78): 192-201.

Zhou P L, Xiao D H, Zhou P F, et al.. Microstructure andproperties of ultrafine crystal WC-AlxCrFeCoNi compositesprepared by hot pressing[J]. Powder metallurgy materialsScience and Engineering, 201, 11(30): 95-103.

Zhou Y J, Zhang Y, Wang Y L, et al.. Mechanical propertiesand strengthening mechanism of TixCrFeCoNiAlmulticomponent solid solution alloy system [J]. ChineseJournal of Materials Research, 2008 (5):461-466.

Yang M, Luo X, Long J P. Chengdu University of Technology.The invention relates to a preparation method of highentropy alloy binder phase cemented carbides.109161773A[P]. 2019-01-08.

Dai P Q, Liu X Q, Guo K K, et al.. The invention relates to apreparation method of WC - based cemented carbides withhigh entropy alloy powder as binder: CN201811445236.0[P]. 2019-02-22.

Wu Y Q, Liaw P K, Zhang Y. Preparation of bulk TiZrNbMoVand NbTiAlTaV high-entropy alloys by powder sintering [J].Metals, 2021, 11(11): 1748.

García J, Collado Ciprés V, Blomqvist A, et al.. Cementedcarbide microstructures: a review [J]. International Journalof Refractory Metals and Hard Materials, 2019(80): 40-68.

Zhou P F, Xiao D H, Yuan T C. Comparison betweenultrafine-grained WC-Co and WC-HEA-cemented carbides[J]. Powder Metallurgy, 2017, 60(1): 1-6.

Fu Z, Koc R. TiNiFeCrCoAl high-entropy alloys as novelmetallic binders for TiB2-TiC based composites [J].Materials Science and Engineering a-Structural MaterialsProperties Microstructure and Processing, 2018(735):302-309.

Ji W, Zhang J Y, Wang W M, et al.. Fabrication andproperties of TiB2-based cerments by spark plasmasintering with CoCrFeNiTiAl high-entropy alloy as sinteringaid [J]. Journal of the European Ceramic Society, 2015,35(3): 879-86.




DOI: https://doi.org/10.33142/rams.v4i2.8465

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