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논문 기본 정보

자료유형
학술저널
저자정보
Jorge Chávez (Universidad Michoacana de San Nicolás de Hidalgo) Omar Jiménez Alemán (Universidad de Guadalajara) Martín Flores Martínez (Universidad de Guadalajara) Héctor J. Vergara‑Hernández (TecNM/Instituto Tecnológico de Morelia) Luis Olmos (Universidad Michoacana de San Nicolás de Hidalgo) Pedro Garnica‑González (TecNM/Instituto Tecnológico de Morelia) Didier Bouvard (Université Grenoble Alpes)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.26 No.2
발행연도
2020.1
수록면
205 - 220 (16page)

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The design and fabrication of a bilayer Ti6Al4V–Ti6Al4V/30Ta component were performed by using the powder metallurgyprocess and solid-state sintering as the consolidation step. Phase change and sintering densifcation of the component werestudied by dilatometry. The addition of 30 vol% of Ta to the Ti6Al4V matrix had a noticeable efect over the microstructuraland mechanical properties of the alloy, which showed decrements of up to 12.2 and 21.5% in nano-hardness and elastic modulus, respectively. The decrement of these properties strongly afected the wear and corrosion performance of the component. Special attention was focused on the intermediate zone between layers denoted by a transition zone, which presented betterwear response because of the properties and microstructure caused by the gradient difusion of Ta. Ti6Al4V/30Ta alloyshowed an improved corrosion behaviour compared to Ti6Al4V alloy, decreasing 2.4 times their susceptibility to corrosionand about two orders of magnitude their corrosion rate. The bilayer component in this study is proposed as an alternative todecrease the consumption of expensive materials with improved properties.

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