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Abstract

Plasma chromising and carburisation following plasma chromising (duplex treatment) were carried out on the Ti₂AlNb based (O phase) alloys by the double glow plasma process. The dynamic ultramicro hardness and elastic modulus of the alloyed layers were investigated by the nano-indentation technique. Dry sliding friction tests on the samples against silicon nitride (Si₃N₄) balls were completed at high temperature by a ball-on-disc tribometer. The results indicated that the duplex-treated layer was mainly composed of Cr₂₃C₆ and Cr₂Nb, while the chromised layer was consisted of Al₈Cr₅ and Cr₂Nb phases. The ultramicro hardness of the duplex-treated layer was higher than that of the chromised layer, whereas the elastic modulus of the duplex-treated layer was lower than that of the chromised layer. The wear rates of the duplex-treated layer and the chromised layer were ∼6˙6 and 2˙5 times respectively, lower than that of substrate. The duplex-treated layer exhibited excellent high temperature wear resistance.

Keywords

SURFACE MODIFICATION NANO-INDENTATION HIGH TEMPERATURE TRIBOLOGICAL BEHAVIOUR HARDNESS ELASTIC MODULUS WEAR RESISTANT COATINGS

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References

Yang

S. J.

, Nam

S. W.

and Masuo

: J. Alloys Compd, 2004, 368, 197–210.

Germann

, Banerjee

, Gue'dou

J. Y.

and Strudel

J.-L.

: Intermetallics, 2005, 13, 920–924.

Miyoshi

, Lerch

B. A.

and Draper

S. L.

: Tribot Int., 2003, 36, 145–153.

Peng

J. H.

, Mao

, Li

S. Q.

and Sun

X. F.

: Mater. Sci. Eng. A, 2001, A299, 75–80.

Yang

S. J.

, Nam

S. W.

and Masuo

: Intermetallics, 2004, 12, 261–274.

and Gao

: J. Adv. Mater., 2002, 34, 32–38.

Zhang

, Xie

X. S.

, Yang

Z. M.

, Dong

J. X.

, Xu

, Gao

and Zhang

T. H.

: Surf Coat. Technot, 2000, 131, 378–382.

Colaco

and Vilar

: Wear, 2003, 255, 643–650.

Ghaleb

N. S.

and Gar

B. H.

: AppL Surf ScL, 1998, 134, 194–196.

10.

Jiang

, Sordelet

D. J.

and Gleeson

: Acta Mater., 2006, 54, 1147–1154.

11.

Liang

W. P.

, Xu

, Miao

, Liu

X. P.

and He

Z. Y.

: Tribology, 2007, 27, 121–125.

12.

Lichinchi

, Lenardi

, Haupt

and Vitali

: Thin Solid Films, 1998, 312, 240–248.

13.

Oliver

W. C.

and Pharr

G. M.

: Mater. Sci. Eng. A, 1998, A253, 151–159.

14.

Oliver

W. C.

and Pharr

G. M.

: J. Mater. Res., 1992,7, 1564–1583.

15.

Miao

, Cui

C. E.

, Pan

J. D.

, Duan

L. H.

and Liu

Y. P.

: Chin. J. Aeronaut., 2006, 19, 266–270.

16.

Jung

H. G.

, Jung

D. J.

and Kim

K. Y.

: Surf Coat. TechnoL, 2002, 154, 75–81.

17.

Bao

Y. W.

, Wang

and Zhou

Y. C.

: Acta Mater., 2004,52, 5397–5404.

18.

Kirakosyan

Kh. G.

, Manukyan

Kh. V.

, Kharatyan

S. L.

and Mnatsakanyan

R. A.

: Mater. Chem. Phys., 2008, 110, 454–456.

19.

Zhang

D. W.

, Lei

T. C.

and Li

F. J.

: Wear, 2001, 251, 1372–1376.

20.

Zhang

D. W.

and Lei

T. C.

: Wear, 2003, 25, 5129.

21.

Wang

, Qian

, Li

X. Y.

and Tandon

K. N.

: Surf Coat. Technot, 1997, 91, 37.

Study on nanomechanical and high temperature tribological behaviour of Ti 2 AlNb based alloys by plasma surface alloying

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