Influence of Cr content on tribological properties of Ni3Al matrix high temperature self-lubricating composites

Shengyu Zhu; Qinling Bi; Jun Yang; Weimin Liu

doi:10.1016/j.triboint.2011.05.014

Influence of Cr content on tribological properties of Ni₃Al matrix high temperature self-lubricating composites

Shengyu Zhu, Qinling Bi, Jun Yang, Weimin Liu

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

55 Scopus citations

Abstract

High temperature self-lubricating composites Ni₃AlBaF ₂CaF₂AgCr were fabricated by powder metallurgy technique. In this paper the effect of Cr content on tribological properties at a wide temperature range starting from room temperature to 1000 °C was investigated. It was found that Ni₃Al matrix composite with 20 wt% Cr exhibited low friction coefficient of 0.240.37 and a wear rate of 0.522.32×10^-4 mm³ N^-1 m^-1. Especially at 800 °C it showed the lowest friction coefficient of 0.24 and a favorable wear rate of 0.71×10^-4 mm³ N^-1 m^-1. This implied that 20 wt% Cr was the optimal Cr content and its excellent tribological performance could be attributed to the balance between strength and lubricity.

Original language	English
Pages (from-to)	1182-1187
Number of pages	6
Journal	Tribology International
Volume	44
Issue number	10
DOIs	https://doi.org/10.1016/j.triboint.2011.05.014
State	Published - Sep 2011
Externally published	Yes

Keywords

Cr
High temperature self-lubricating
NiAl matrix
Wear

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10.1016/j.triboint.2011.05.014

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title = "Influence of Cr content on tribological properties of Ni3Al matrix high temperature self-lubricating composites",

abstract = "High temperature self-lubricating composites Ni3AlBaF 2CaF2AgCr were fabricated by powder metallurgy technique. In this paper the effect of Cr content on tribological properties at a wide temperature range starting from room temperature to 1000 °C was investigated. It was found that Ni3Al matrix composite with 20 wt% Cr exhibited low friction coefficient of 0.240.37 and a wear rate of 0.522.32×10-4 mm3 N-1 m-1. Especially at 800 °C it showed the lowest friction coefficient of 0.24 and a favorable wear rate of 0.71×10-4 mm3 N-1 m-1. This implied that 20 wt% Cr was the optimal Cr content and its excellent tribological performance could be attributed to the balance between strength and lubricity.",

keywords = "Cr, High temperature self-lubricating, NiAl matrix, Wear",

author = "Shengyu Zhu and Qinling Bi and Jun Yang and Weimin Liu",

year = "2011",

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language = "英语",

volume = "44",

pages = "1182--1187",

journal = "Tribology International",

issn = "0301-679X",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Influence of Cr content on tribological properties of Ni3Al matrix high temperature self-lubricating composites

AU - Zhu, Shengyu

AU - Bi, Qinling

AU - Yang, Jun

AU - Liu, Weimin

PY - 2011/9

Y1 - 2011/9

N2 - High temperature self-lubricating composites Ni3AlBaF 2CaF2AgCr were fabricated by powder metallurgy technique. In this paper the effect of Cr content on tribological properties at a wide temperature range starting from room temperature to 1000 °C was investigated. It was found that Ni3Al matrix composite with 20 wt% Cr exhibited low friction coefficient of 0.240.37 and a wear rate of 0.522.32×10-4 mm3 N-1 m-1. Especially at 800 °C it showed the lowest friction coefficient of 0.24 and a favorable wear rate of 0.71×10-4 mm3 N-1 m-1. This implied that 20 wt% Cr was the optimal Cr content and its excellent tribological performance could be attributed to the balance between strength and lubricity.

AB - High temperature self-lubricating composites Ni3AlBaF 2CaF2AgCr were fabricated by powder metallurgy technique. In this paper the effect of Cr content on tribological properties at a wide temperature range starting from room temperature to 1000 °C was investigated. It was found that Ni3Al matrix composite with 20 wt% Cr exhibited low friction coefficient of 0.240.37 and a wear rate of 0.522.32×10-4 mm3 N-1 m-1. Especially at 800 °C it showed the lowest friction coefficient of 0.24 and a favorable wear rate of 0.71×10-4 mm3 N-1 m-1. This implied that 20 wt% Cr was the optimal Cr content and its excellent tribological performance could be attributed to the balance between strength and lubricity.

KW - Cr

KW - High temperature self-lubricating

KW - NiAl matrix

KW - Wear

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U2 - 10.1016/j.triboint.2011.05.014

DO - 10.1016/j.triboint.2011.05.014

M3 - 文章

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SN - 0301-679X

VL - 44

SP - 1182

EP - 1187

JO - Tribology International

JF - Tribology International

IS - 10

ER -

Influence of Cr content on tribological properties of Ni₃Al matrix high temperature self-lubricating composites

Abstract

Keywords

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