Effect of Mixed Rare Earth Fluorides on the Mechanical and Tribological Characteristics of Ni-Based Alloy
作者:
Jinjun Lu,
Qunji Xue,
期刊:
Tribology Transactions
(Taylor Available online 2000)
卷期:
Volume 43,
issue 1
页码: 27-32
ISSN:1040-2004
年代: 2000
DOI:10.1080/10402000008982308
出版商: Taylor & Francis Group
关键词: High Temperature;Self-Lubricating;Composites;Mechanical Strength;Mixed Rare Earth Fluorides
数据来源: Taylor
摘要:
In this paper, Ni-based alloys with different addition amounts of mixed rare earth fluoride were prepared using a P/M method in an intermediate frequency inductive furnace. The effect of mixed rare earth fluoride (30.9 wt.% LaF3and 69.1 wt.% DyF3in composition) additions on the mechanical strength of the alloy was investigated and compared with that of a CeF3addition. The findings indicated that by adding 3 wt.% mixed rare earth fluorides the improved toughness can be obtained. By adding 3 wt.% and 5 wt.% of mixed rare earth fluorides the compressive strength at 700°C were increased. The friction and wear behavior of the composite sliding against a high temperature self-lubricating composite at room temperature and 600°C in air were investigated on a pin-on-disk tribometer. The composites showed better tribological performances at 600°C than at room temperature.
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