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Title: Dry Sliding Wear Behavior of Hot-Dip Aluminized Ti-6Al-4V Alloy as a Function of Sliding Velocity

Abstract

An aluminized coating was prepared on Ti-6Al-4V alloy by hot-dip aluminizing and subsequently diffusion treatment. Dry sliding wear tests were performed for the aluminized and uncoated Ti-6Al-4V alloy under the loads of 10-50 N at the sliding velocities of 0.5-4 m/s. The wear resistance of the titanium alloy was improved by the aluminized coating under various conditions, especially at 4 m/s. The improved wear performance was suggested to be attributed to the Ti-Al coating and tribo-oxide layer. Tribo-layers were identified to form on worn surfaces under various conditions but their influence on the wear behavior and mechanism was decided by the amount and kind of oxides. The outmost values of the microhardness distribution at subsurfaces as a function of load could be used to identify the property and stability of tribo-layers. At 4 m/s, oxide-containing tribo-layers (more TiO, TiO{sub 2} and trace Fe{sub 2}O{sub 3}) presented high hardness and stability, thus possessed an obvious wear-reduced function. Conversely at 2.68 m/s, no-oxide tribo-layers did not show the protection from wear because of their lower hardness and instability. The formation of tribo-layers under various sliding speeds was noticed to be a process including wear debris production, oxidation and accumulation and densification, even sintering.

Authors:
; ; ; ;  [1]
  1. Jiangsu University, School of Materials Science and Engineering (China)
Publication Date:
OSTI Identifier:
22863248
Resource Type:
Journal Article
Journal Name:
Journal of Materials Engineering and Performance
Additional Journal Information:
Journal Volume: 27; Journal Issue: 10; Conference: EUROMAT 2017: European Congress and Exhibition on Advanced Materials and Processes, Thessaloniki (Greece), 17-22 Sep 2017, AeroMat 2017: Advanced Aerospace Materials and Processes Conference and Exposition, Thessaloniki (Greece), 17-22 Sep 2017; Other Information: Copyright (c) 2018 ASM International; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1059-9495
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM COMPOUNDS; COATINGS; DIFFUSION; DISTRIBUTION; IRON OXIDES; LAYERS; MICROHARDNESS; SINTERING; STABILITY; SURFACES; TITANIUM ALLOYS; TITANIUM OXIDES; VANADIUM COMPOUNDS; VELOCITY; WEAR RESISTANCE

Citation Formats

Jiang, Wei, Zhang, Benguo, Chen, Wei, Wang, Shuqi, and Cui, Xianghong. Dry Sliding Wear Behavior of Hot-Dip Aluminized Ti-6Al-4V Alloy as a Function of Sliding Velocity. United States: N. p., 2018. Web. doi:10.1007/S11665-018-3629-7.
Jiang, Wei, Zhang, Benguo, Chen, Wei, Wang, Shuqi, & Cui, Xianghong. Dry Sliding Wear Behavior of Hot-Dip Aluminized Ti-6Al-4V Alloy as a Function of Sliding Velocity. United States. https://doi.org/10.1007/S11665-018-3629-7
Jiang, Wei, Zhang, Benguo, Chen, Wei, Wang, Shuqi, and Cui, Xianghong. 2018. "Dry Sliding Wear Behavior of Hot-Dip Aluminized Ti-6Al-4V Alloy as a Function of Sliding Velocity". United States. https://doi.org/10.1007/S11665-018-3629-7.
@article{osti_22863248,
title = {Dry Sliding Wear Behavior of Hot-Dip Aluminized Ti-6Al-4V Alloy as a Function of Sliding Velocity},
author = {Jiang, Wei and Zhang, Benguo and Chen, Wei and Wang, Shuqi and Cui, Xianghong},
abstractNote = {An aluminized coating was prepared on Ti-6Al-4V alloy by hot-dip aluminizing and subsequently diffusion treatment. Dry sliding wear tests were performed for the aluminized and uncoated Ti-6Al-4V alloy under the loads of 10-50 N at the sliding velocities of 0.5-4 m/s. The wear resistance of the titanium alloy was improved by the aluminized coating under various conditions, especially at 4 m/s. The improved wear performance was suggested to be attributed to the Ti-Al coating and tribo-oxide layer. Tribo-layers were identified to form on worn surfaces under various conditions but their influence on the wear behavior and mechanism was decided by the amount and kind of oxides. The outmost values of the microhardness distribution at subsurfaces as a function of load could be used to identify the property and stability of tribo-layers. At 4 m/s, oxide-containing tribo-layers (more TiO, TiO{sub 2} and trace Fe{sub 2}O{sub 3}) presented high hardness and stability, thus possessed an obvious wear-reduced function. Conversely at 2.68 m/s, no-oxide tribo-layers did not show the protection from wear because of their lower hardness and instability. The formation of tribo-layers under various sliding speeds was noticed to be a process including wear debris production, oxidation and accumulation and densification, even sintering.},
doi = {10.1007/S11665-018-3629-7},
url = {https://www.osti.gov/biblio/22863248}, journal = {Journal of Materials Engineering and Performance},
issn = {1059-9495},
number = 10,
volume = 27,
place = {United States},
year = {2018},
month = {10}
}