Sage Journals: Discover world-class research

Abstract

Short mullite fibre reinforced Al–Cu–Mg alloy composites were produced by squeeze casting. The interfacial microstructure and microchemistry of the testing composites were studied by means of X-ray diffraction (XRD), transmission electron microscope (TEM) and energy disperse spectroscope (EDS) equipped with TEM respectively. It is shown that chopped mullite fibres in the composites are polycrystalline in structure composed of many fine mullite crystal particles which are orthorhombic in structure with lattice constants of a=0·749, b=0·927 and c=0·581 nm based on electron diffraction (ED) analysis and high resolution transmission electron microscope (HRTEM). There are highly densified dislocations in the vicinity of mullite fibre/matrix interface after solution treatment and quenching in ice water immediately. Interfacial reaction between mullite fibre and Al–Cu–Mg base alloy was observed, resulting in the formation of MgAl₂O₄ spinels in the testing composites.

Keywords

MULLITE FIBRE AL-CU-MG ALLOY COMPOSITE INTERFACE

Get full access to this article

View all access options for this article.

References

Canumalla

, Dynan

S. A.

, Green

D. J.

, Bkagat

R. B.

and Pangborn

R. N.

: J. Compos. Mater., 1995, 29, 653–670.

Chen

, Zhao

, Dong

, Gao

S. J.

, Shen

B. L.

and Tu

M. J.

: Chin. J. Nonferrous Met., 1998, 8, (Suppl. 1),181–184.

Zhao

, Gao

S. J.

, Shen

B. L.

and Tu

M. J.

: Chin. J. Nonferrous Met., 1999, 9, (4), 744–747.

Kavecky

and Sebo

: J. Mater. Set, 1996, 31, 757–764.

S. Q.

, Wang

H. Z.

and Tjong

S. C.

: Compos. Sci. Technol, 1996, 56, 1261–1270.

Cao

G. H.

, Wu

S. Q.

, Shen

G. J.

and Shu

G. J.

: J. Mater. Sci. Lett., 1999, 18, 393–402.

Cao

G. H.

, Shen

G. J.

, Liu

J. M.

and Liu

Z. G.

: Ibid, 2000, 19, 1311–1317.

Wang

, Wang

and Weatherly

G. C.

: Metall Trans. A, 1992, 23A, 1423–1530.

Rehman

F. U.

, Fox

, Flower

H. M.

and West

D. R. F.

: J. Mater. Set, 1994, 29, 1636–1645.

10.

Cao

G. H.

, Shen

G. J.

, Liu

Z. G.

and Wu

S. Q.

: J. Mater. Sci. Lett., 2001, 20, 501–503.

11.

, Fan

H. Y.

, Zhang

X. J.

, Shen

B. L.

, Gao

S. J.

, Tu

M. J.

, Li

and Qiu

S. Y.

: J. Mater. Set, 2004, 39, 1875–1877.

12.

Tjong

S. C.

, Wang

H. Z.

and Wu

S. Q.

: Metall Mater. Trans. A, 1996, 27A, 2385–2392.

13.

Brandes

E. A.

(ed.): ‘Smithell's metals reference book’, 6th edn; 1983, London, Betterworth.

14.

Clyne

T. W.

and Withers

P. J.

: ‘An introduction to metal matrix composites’, 348; 1996, Beijing, Metallurgical Industry Press.

15.

Maeda

, Wakashima

and Ono

: Scr. Mater., 1997, 36, 335–340.

16.

Sgobba

, Parrini

, Kunzi

H. U.

and Ilschner

: Metall Mater. Trans. A, 1995, 26A, 2745–2749.

17.

, Fan

H. Y.

, Li

, Shen

B. L.

, Gao

S. J.

and Tu

M. J.

: Rare Met. Mater. Eng., 2003, 32, 352–356.

18.

Chou

M. C.

and Chao

C. G.

: MetalL Mater. Trans. A, 1996, 27A, 2005–2012.

19.

Mercier

, Ehrburger

and Lahaye

: J. Mater. Set, 1995, 30, 4770–4774.

20.

Liu

Z. R.

, Wang

D. Z.

, Yao

C. K.

, Mao

J. F.

and Li

D. X.

: J. Mater. Set, 1996, 31, 6403–6407.

21.

Gupta

, Lu

and Ang

S. E.

: J. Mater. Sci., 1997, 32, 1261–1267.

22.

Zhong

W. M.

, Esperance

G. L.

and Suéry

: Mater. Charact., 2003, 49, 113–119.

23.

Levi

C. G.

, Abbaschian

G. J.

and Mehrabiam

: MetalL Trans. A, 1978, 9A, 697–711.

Interface study of short mullite fibre reinforced Al–Cu–Mg alloy composites

Abstract

Keywords

Get full access to this article

References