Fabrication of Al-Al3Ti-Ti3Al Functionally Graded Materials under a Centrifugal ForceReport as inadecuate


Fabrication of Al-Al3Ti-Ti3Al Functionally Graded Materials under a Centrifugal Force


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1

Department of Engineering Physics, Electronics and Mechanics, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan

2

Department of Manufacturing Technology, Central Metallurgical Research & Development Institute, P.O.BOX 87, Helwan, Cairo, Egypt





*

Author to whom correspondence should be addressed.



Abstract Fabrication of Al-Al3Ti functionally graded materials FGMs under the centrifugal force has recently attracted some attention. The controlled compositional gradient of the fabricated FGMs, the low cost of the process, and the good mold filling, are the main advantages of the centrifugal method CM. Using the conventional CM techniques such as the centrifugal solid-particle method and centrifugal in-situ method, FGMs rings with gradually distributed properties could be achieved. As a more practical choice, the centrifugal mixed-powder method CMPM was recently proposed to obtain FGMs containing nano-particles selectively dispersed in the outer surface of the fabricated parts. However, if a control of the particles morphology, compound formulas or sizes, is desired, another CM technique is favored. As a development of CMPM, our novel reaction centrifugal mixed-powder method RCMPM has been presented. Using RCMPM, Al‑Al3Ti-Ti3Al FGMs with good surface properties and temperature controlled compositional gradient could be achieved. In this short review, this novel method will be discussed in detail and the effect of RCMPM processing temperature on the reinforcement particles morphology, size and distribution through the fabricated samples, will be reviewed. View Full-Text

Keywords: functionally graded materials FGMs; centrifugal method CM; reaction mixed-powder method functionally graded materials FGMs; centrifugal method CM; reaction mixed-powder method





Author: Shimaa El-Hadad 1,2,* , Hisashi Sato 1, Eri Miura-Fujiwara 1 and Yoshimi Watanabe 1

Source: http://mdpi.com/



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