等离子喷涂制备W丝增强NiAl单层复合材料的界面研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2007, Vol. 28 ›› Issue (增): 189-192.

Interface Study on the Plasma Sprayed Monolayer NiAl Composite Reinforced with W Fibers

ZHANG Zhi-gang,GONG Sheng-kai,XU Hui-bin

School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics

Received:2006-10-25 Revised:2007-01-30 Online:2007-08-10 Published:2007-08-10
Contact: XU Huibin

Abstract

Abstract:

The plasma sprayed monolayer NiAl composite reinforced with W fibers was prepared and the interfaces in the composite were also studied. The results show that W fibers and NiAl matrix have better inconsistency. The assprayed interface of W/NiAl is mechanically bonded and there is no interdiffusion or interface reaction. The bonding of W/NiAl interface is improved after annealing at 800 ℃ for 3 h and the alumina layer between W/NiAl and the crystallized NiAldroplets grows thicker after annealing at 1 200 ℃ for 48 h.

Key words: monolayer , NiAl , composite , reinforced , with , W , fibers, , plasma , spray, , interface, , inconsistency

CLC Number:

TB331

ZHANG Zhi-gang;GONG Sheng-kai;XU Hui-bin. Interface Study on the Plasma Sprayed Monolayer NiAl Composite Reinforced with W Fibers[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2007, 28(增): 189-192.

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Interface Study on the Plasma Sprayed Monolayer NiAl Composite Reinforced with W Fibers

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