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Metals 2017, 7(6), 226;

High Temperature Oxidation and Wear Behaviors of Ti–V–Cr Fireproof Titanium Alloy

Key Laboratory of Science and Technology on Advanced Titanium Alloys, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
Author to whom correspondence should be addressed.
Received: 26 April 2017 / Revised: 10 June 2017 / Accepted: 14 June 2017 / Published: 19 June 2017
(This article belongs to the Special Issue Titanium Alloys 2017)
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The high temperature oxidation and wear behaviors of Ti–35V–15Cr–0.3Si–0.1C fireproof titanium alloy were examined at 873 and 1073 K. The oxidation weight gain after oxidation at 1073 K for 100 h was significantly larger than that at 873 K. Based on the analyses of the oxidation reaction index and oxide layer, the oxidation process at 1073 K was mainly controlled by oxidation reaction at the interface between the substrate and oxide layer. Dry sliding wear tests were performed on a pin-on-disk tester in air conditions. The friction coefficient was smaller at 1073 K than that at 873 K, while the volume wear rate at 1073 K was larger due to formation of amount of oxides on the worn surface. When the wearing temperature increased from 873 to 1073 K, the wear mechanism underwent a transition from a combination of abrasive wear and oxidative wear to only oxidative wear. View Full-Text
Keywords: titanium alloy; fireproof; oxidation; high temperature wear; mechanism titanium alloy; fireproof; oxidation; high temperature wear; mechanism

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Mi, G.; Yao, K.; Bai, P.; Cheng, C.; Min, X. High Temperature Oxidation and Wear Behaviors of Ti–V–Cr Fireproof Titanium Alloy. Metals 2017, 7, 226.

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