Nanocrystalline tungsten–nickel heavy alloy reinforced by in-situ tungsten carbide: Mechanical alloying preparation and microstructural evolution

Gu, Dongdong; Zhang, Guoquan; Dai, Donghua; Wang, Hongqiao; Shen, Yifu

doi:10.1016/j.ijrmhm.2012.10.015

Cited by 14 publications

(1 citation statement)

References 24 publications

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“…Then, powder particles undergo work hardening and in the last phase, particles are fragmented. Previous studies reported a slight increase in the powder dimension with the effect of cold welding taking place in the first stage of the mechanical alloying process [29][30][31]. Therefore, titanium powder particles in the matrix can be combined together during mechanical alloying and form coarse grains.…”

Section: Methodsmentioning

confidence: 99%

Wear Behaviour of A356/TiAl3 in Situ Composites Produced by Mechanical Alloying

Çam

Demir

Özyürek

2016

Metals

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Abstract:In this study, the effects of in situ TiAl 3 particles on dry sliding wear behavior of A356 aluminum alloy (added Ti) composites were investigated. The wear samples were prepared by adding different amounts of Ti (4%, 6%, and 8%) into A356 powder alloy by mechanical alloying. The mechanically alloyed powders were cold pressed at 600 MPa and sintered 530˝C for 1 h in argon atmosphere and cooled in the furnace. After the sintering process, the samples were characterized. The results show that AlTi and TiAl 3 intermetallic phases were formed and their amount increased depending on the amount of Ti added into A356 powder alloy. Out of the samples sintered with different titanium amounts (1 h at 530˝C), the highest hardness value and, accordingly, the lowest wear amount, were observed in the alloy containing 8% Ti.

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Section: Methodsmentioning

confidence: 99%