Wear resistance of TC4 by deformation accelerated plasma nitriding at 400 °C

Abstract

An integrated low temperature nitriding process for TC4 (Ti6Al4V) has been developed and the effect on wear resistance has been investigated. Through the process of solid solution strengthening—cold deformation—nitriding at 400 °C, the TC4 alloy is nitrided on surface and dispersion strengthened in bulk at the same time. The white nitriding layer is formed after some time of nitriding. The nitriding speed increases with the deformation degree. The construction was investigated by XRD and the nitride is Ti₃N_2-X. The wear test was carried out and results exhibit that the nitrided samples have better wear resistance.

Keywords

TC4 (Ti6Al4V) / low temperature nitriding / cold deformation / wear resistance / tribology

References

[1] ZhaoY-q, ChenY-n, ZhangX-m, ZengW-d, WangLeiPhase transformation and heat treatment of titanium alloys [M], 201245-46

[2] BonelloT, WilsonJ C A-B, HousdenJ, GutmanasE Y, GotmanI, MatthewsA, LeylandA, CassarG. Evaluating the effects of PIRAC nitrogen-diffusion treatments on the mechanical performance of Ti-6Al-4V alloy [J]. Materials Science and Engineering A, 2014, 619: 300-311

[3] LiS-m, YuX-m, LiuJ-h, YuM, WuL, YangKang. Microstructure and abrasive wear behaviour of anodizing composite films containing SiC nanoparticles on Ti6Al4V alloy [J]. J Cent South Univ, 2014, 21: 4415-4423

[4] TsujiN, TanakaS, TakasugiT. Evaluation of surfacemodified Ti-6Al-4V alloy by combination of plasma-carburizing and deep-rolling [J]. Materials Science and Engineering A, 2008, 488: 139-145

[5] WilsonJ C A-B, BanfieldS, HousdenJ, OliveroC, ChaponP. On the response of Ti-6Al-4V and Ti-6Al-7Nb alloys to a Nitron-100 treatment [J]. Surface & Coatings Technology, 2014, 260: 335-346

[6] HosseiniS R, AhmadiA. Evaluation of the effects of plasma nitriding temperature and time on the characterisation of Ti6Al4V alloy [J]. Vacuum, 2013, 87: 30-39

[7] ScerriA, BuhagiarJ, BanfieldS, WilsonJ C A-B, HousdenJ, LeylandA, MatthewsA, CassarG. Corrosion behaviour of triode plasma diffusion treated and PVD TiN-coated Ti-6Al-4V in acidified aqueous chloride environments [J]. Surface & Coatings Technology, 2015, 280: 185-193

[8] MoritaT, AsakuraK, KagayaC. Effect of combination treatment on wear resistance and strength of Ti-6Al-4V alloy [J]. Materials Science and Engineering A, 2014, 618: 438-446

[9] FarokhzadehK, QianJ, EdrisyA. Effect of SPD surface layer on plasma nitriding of Ti-6Al-4V alloy [J]. Materials Science and Engineering A, 2014, 589: 199-208

[10] AmanovA, ChoI S, KimD E, PyumY S. Fretting wear and friction reduction of CP titanium and Ti-6Al-4V alloy by ultrasonic nanocrystalline surface modification [J]. Surface & Coatings Technology, 2012, 207: 135-142

[11] MorgielJ, WierzchonT. New estimate of phase sequence in diffusive layer formed on plasma nitrided Ti-6Al-4V alloy [J]. Surface & Coatings Technology, 2014, 259: 473-482

[12] Da SilvaS, LR, KerberL O, AmaralL, SantosC A D. X-ray diffraction measurements of plasma-nitrided Ti-6Al-4V [J]. Surface & Coatings Technology, 1999, 116: 342-346

[13] KimT S, ParkY G, WeyM Y. Characterization of Ti-6Al-4V alloy modified by plasma carburizing process [J]. Materials Science and Engineering A, 2003, 361: 255-282

[14] YangJ-shengImproving Ti-6Al-4V alloy’s friction and wear properties by complex processing technology [D], 2010

[15] WierzchonT, FleszarA. Properties of surface layers on titanium alloy produced by thermo-chemical treatments under glow discharge conditions [J]. Surface & Coatings Technology, 1997, 96(2): 205-209

[16] SheD-s, YueW, FuZ-q, LiuJ-jun. Effects of nitriding temperature on microstructures and vacuum tribological properties of plasma-nitrided titanium [J]. Surface & Coatings Technology, 2015, 264: 32-40

[17] FarokhzadehK, EdrisyA. Fatigue improvement in low temperature plasma nitrided Ti-6Al-4V alloy [J]. Materials Science and Engineering A, 2014, 620: 435-444

[18] RajasekaranB, RamanS, GaneshS. Plain fatigue and fretting fatigue behaviour of plasma nitrided Ti-6Al-4V [J]. Materials Letters, 2008, 62: 2473-2475

[19] Mubarak AliM, RamanS G S, PathakS D, GnanamoothyR. Influence of plasma nitriding on fretting wear behaviour of Ti-6Al-4V [J]. Tribology International, 2010, 43: 152-160

[20] Da SilvaS L R, KerberL O, AmaralL, SantosC A D. X-ray diffraction measurements of plasma-nitrided Ti-6Al-4V [J]. Surface & Coatings Technology, 1999, 116: 342-346