Seven series of Mo2FeB2 ceramic-steels with Nb/V content between 0 and 6 wt-% had been successfully fabricated by liquid phase reaction sintering. The microstructure was studied by means of field emission scanning electron microscope, energy dispersive spectroscopy and X-ray diffractometry. The hardness (HRA), transverse rupture strength (TRS) and wear resistance were also measured. The results reveal that the grain size decreased with the increase of Nb content, but had little change with the increase of V content. With the increase of Nb/V content, the hardness and TRS both enhance first and then descends. Mo2FeB2 ceramic-steels with 4 wt-% Nb content show the highest hardness and TRS of HRA 90.6 and 1970 MPa and the best dry sliding wear resistance.
CuppolettiJ, editor. Metal, ceramic and polymeric composites for various uses. Rijeka, In Tech; 2011. p. 325–340.
2.
TakagiK.Development and application of high strength ternary boride base cermets. J Solid State Chem.2006;179(9):2809–2818. doi: 10.1016/j.jssc.2006.01.023
3.
TakagiK.High tough boride base cermets produced by reaction sintering. Mater Chem Phys.2001;67:214–219. doi: 10.1016/S0254-0584(00)00442-9
4.
TakagiK, YamasakiY.Effects of Mo/B atomic ratio on the mechanical properties and structure of Mo2NiB2 boride base cermets with Cr and V additions. J Solid State Chem.2000;154(1):263–268. doi: 10.1006/jssc.2000.8847
5.
TakagiK, OhiraS, IdeT, WatanabeT.New multiple-boride base hard alloy. Met Powder Rep.1987;42:483–490.
6.
TakagiK, YamasakiY, KomaiM.High-strength boride base hard materials. J Solid State Chem.1997;133(1):243–248. doi: 10.1006/jssc.1997.7449
7.
YuH, LiuW, ZhengY.Microstructure and mechanical properties of liquid phase sintered Mo2FeB2 based cermets. Mater Des.2011;32(6):3521–3525. doi: 10.1016/j.matdes.2011.02.034
8.
YuH, LiuW, FengP, ZhengY.Synthesis and microstructure evolution during vacuum sintering of Mo2FeB2 based cermets. Int J Refract Met Hard Mater.2014;45:48–52. doi: 10.1016/j.ijrmhm.2014.03.010
9.
YamasakiY, NishiM, TakagiKI.Development of very high strength Mo2NiB2 complex boride base hard alloy. J Solid State Chem.2004;177(2):551–555. doi: 10.1016/j.jssc.2003.03.008
10.
TakagiKI, KoikeW, AiM, TakuyaF.Effects of Cr on the properties of Mo2NiB2 ternary boride. Solid State Sci.2012;14(11–12):1643–1647. doi: 10.1016/j.solidstatesciences.2012.05.009
11.
SáezA, ArenasF, VidalE.Microstructure development of WCoB-TiC based hard materials. Int J Refract Met Hard Mater.2003;21(1):13–18. doi: 10.1016/S0263-4368(02)00104-X
12.
DeqingK, YingjunP, XufengL, BoH, HengZ.Influence and effectivity of Sm2O3 and Cr3C2 grain growth inhibitors on sintering of WCoB-TiC based cermets. Ceram Int.2015;41(10):15235–15240. doi: 10.1016/j.ceramint.2015.07.049
13.
DhavalR, UpadhyayaG. S.Sintering of Mo2FeB2 layered cermet containing SiC fibers‘, Mater Chem Phys.2001;70:336–339. doi: 10.1016/S0254-0584(00)00531-9
14.
YongguoW, ZhaoqianL.Development of ternary-boride-based hard cladding material. Mater Res Bull.2002;37:417–423. doi: 10.1016/S0025-5408(01)00824-8
15.
NishiyamaK, KeinoM, FuruyamaY, SakaguchiT, TakagiK.Internal friction of boride cermets at elevated temperatures‘, J Alloys Compd.2003;355:97–102. doi: 10.1016/S0925-8388(03)00284-6
16.
HaizhouY, WenjunL, PingF, YongZ.Synthesis and microstructure evolution during vacuum sintering of Mo2FeB2 based cermets. Int J Refract Met Hard Mater.2014;45:48–52. doi: 10.1016/j.ijrmhm.2014.03.010
17.
RaoD, UpadhyayaG. S.Sintering of Mo2FeB2 layered cermet containing SiC fibers. Mater Chem Phys.2001;70(3):336–339. doi: 10.1016/S0254-0584(00)00531-9
18.
PangX, ZhengY, WangS, WangQ.Effect of Mn on valence-electron structure and properties of hard phase in Mo2FeB2-based cermets. Int J Refract Met Hard Mater.2009;27(4):777–780. doi: 10.1016/j.ijrmhm.2009.01.004
19.
YuH, LiuW, FengP, ZhengY.Synthesis and microstructure evolution during vacuum sintering of Mo2FeB2 based cermets. Int J Refract Met Hard Mater.2014;45:48–52. doi: 10.1016/j.ijrmhm.2014.03.010
20.
HaizhouY, YongZ, WenjunL, JianzhiZ, WeihaoX.Effect of V content on the microstructure and mechanical properties of Mo2FeB2 based cermets. Mater Des.2010;31(5):2680–2683. doi: 10.1016/j.matdes.2009.11.051
21.
UllahA, MalikRA, UllahA, LeeDS, JeongSJ, LeeJS, KimIW, AhnCW.Electric-field-induced phase transition and large strain in lead-free Nb-doped BNKT-BST ceramics. J Eur Ceram Soc.2014;34(1):29–35. doi: 10.1016/j.jeurceramsoc.2013.07.014
22.
PengZ, QiangC, YuC, DingquanX, JianguoZ.Microstructure and electrical properties in W/Nb co-doped aurivillius phase Bi4Ti3O12 piezoelectric ceramics. Mater Res Bull.2014;59(59):125–130. doi: 10.1016/j.materresbull.2014.07.002
23.
UyangaE, GibaudA, DanielP, SangaaD, SevjidsurenG, AltantsogP, BeuvierT, LeeC. H, BalagurovA. M.Structural and vibrational investigations of Nb-doped TiO2 thin films. Mater Res Bull.2014;60(60): 222–231. doi: 10.1016/j.materresbull.2014.08.035
24.
MatteucciF, CrucianiG, DondiM, RaimondoM.The role of counterions (Mo, Nb, Sb, W) in Cr-, Mn-, Ni- and V-doped rutile ceramic pigments: part 1. crystal structure and phase transformations. Ceram Int.2015;32(4):385–392. doi: 10.1016/j.ceramint.2005.03.014
