Effect of TiB2 on Tribological Properties of TiAl Self-lubricating Composites Containing Ag at Elevated Temperature

Jie Yao; Xiaoliang Shi; Wenzheng Zhai; Ahmed Mohamed Mahmoud Ibrahim; Zengshi Xu; Siyuan Song; Long Chen; Qingshuai Zhu; Yecheng Xiao; Qiaoxin Zhang

doi:10.1007/s11665-014-1275-2

Effect of TiB₂ on Tribological Properties of TiAl Self-lubricating Composites Containing Ag at Elevated Temperature

Jie Yao, Xiaoliang Shi, Wenzheng Zhai, Ahmed Mohamed Mahmoud Ibrahim, Zengshi Xu, Siyuan Song, Long Chen, Qingshuai Zhu, Yecheng Xiao, Qiaoxin Zhang

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

TiB₂ was chosen to further improve the tribological properties of TiAl matrix self-lubricating composites containing Ag. The possible synergetic action of a combination of TiB₂ and Ag was investigated using a pin-on-disk high temperature tribometer from room temperature to 600 °C. The tribological test results indicated that the addition of TiB₂ obviously enhanced the wear resistance of the composites over a wide temperature range. Moreover, the composites containing TiB₂ had a low friction coefficient at 600 °C. The subsurface analysis of cross sections of worn surfaces showed that TiB₂ played the role in wear-resistant skeleton and restricted the plastic flow of Ag during dry friction process. The investigation showed that TiB₂ and Ag could exhibit good synergistic effect on improving the tribological properties of composites.

Original language	English
Pages (from-to)	307-318
Number of pages	12
Journal	Journal of Materials Engineering and Performance
Volume	24
Issue number	1
DOIs	https://doi.org/10.1007/s11665-014-1275-2
Publication status	Published - Jan 2015
Externally published	Yes

Keywords

electron microscopy
mechanical testing
metal-matrix composite
powder metallurgy
tribology

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1007/s11665-014-1275-2

Cite this

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title = "Effect of TiB2 on Tribological Properties of TiAl Self-lubricating Composites Containing Ag at Elevated Temperature",

abstract = "TiB2 was chosen to further improve the tribological properties of TiAl matrix self-lubricating composites containing Ag. The possible synergetic action of a combination of TiB2 and Ag was investigated using a pin-on-disk high temperature tribometer from room temperature to 600 °C. The tribological test results indicated that the addition of TiB2 obviously enhanced the wear resistance of the composites over a wide temperature range. Moreover, the composites containing TiB2 had a low friction coefficient at 600 °C. The subsurface analysis of cross sections of worn surfaces showed that TiB2 played the role in wear-resistant skeleton and restricted the plastic flow of Ag during dry friction process. The investigation showed that TiB2 and Ag could exhibit good synergistic effect on improving the tribological properties of composites.",

keywords = "electron microscopy, mechanical testing, metal-matrix composite, powder metallurgy, tribology",

author = "Jie Yao and Xiaoliang Shi and Wenzheng Zhai and Ibrahim, {Ahmed Mohamed Mahmoud} and Zengshi Xu and Siyuan Song and Long Chen and Qingshuai Zhu and Yecheng Xiao and Qiaoxin Zhang",

note = "Publisher Copyright: {\textcopyright} 2014, ASM International.",

year = "2015",

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doi = "10.1007/s11665-014-1275-2",

language = "English",

volume = "24",

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TY - JOUR

T1 - Effect of TiB2 on Tribological Properties of TiAl Self-lubricating Composites Containing Ag at Elevated Temperature

AU - Yao, Jie

AU - Shi, Xiaoliang

AU - Zhai, Wenzheng

AU - Ibrahim, Ahmed Mohamed Mahmoud

AU - Xu, Zengshi

AU - Song, Siyuan

AU - Chen, Long

AU - Zhu, Qingshuai

AU - Xiao, Yecheng

AU - Zhang, Qiaoxin

PY - 2015/1

Y1 - 2015/1

N2 - TiB2 was chosen to further improve the tribological properties of TiAl matrix self-lubricating composites containing Ag. The possible synergetic action of a combination of TiB2 and Ag was investigated using a pin-on-disk high temperature tribometer from room temperature to 600 °C. The tribological test results indicated that the addition of TiB2 obviously enhanced the wear resistance of the composites over a wide temperature range. Moreover, the composites containing TiB2 had a low friction coefficient at 600 °C. The subsurface analysis of cross sections of worn surfaces showed that TiB2 played the role in wear-resistant skeleton and restricted the plastic flow of Ag during dry friction process. The investigation showed that TiB2 and Ag could exhibit good synergistic effect on improving the tribological properties of composites.

AB - TiB2 was chosen to further improve the tribological properties of TiAl matrix self-lubricating composites containing Ag. The possible synergetic action of a combination of TiB2 and Ag was investigated using a pin-on-disk high temperature tribometer from room temperature to 600 °C. The tribological test results indicated that the addition of TiB2 obviously enhanced the wear resistance of the composites over a wide temperature range. Moreover, the composites containing TiB2 had a low friction coefficient at 600 °C. The subsurface analysis of cross sections of worn surfaces showed that TiB2 played the role in wear-resistant skeleton and restricted the plastic flow of Ag during dry friction process. The investigation showed that TiB2 and Ag could exhibit good synergistic effect on improving the tribological properties of composites.

KW - electron microscopy

KW - mechanical testing

KW - metal-matrix composite

KW - powder metallurgy

KW - tribology

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