The current design of materials against wear considers hardness as the sole material property. As a result, the brittleness associated with increased hardness leads to severe damage. The purpose of this research is to understand the nature of conflicts between hardness and toughness of a new alloy composite. First, we designed Al-Cu-Fe alloys containing crystal structures of λ, β, and quasi-crystalline i-phase. These and their combination with others lead to a set of alloys with various hardness and fracture toughness. Experimental study was carried out using a noble and hard tungsten carbide (WC) ball against sample disks. The WC ball did not produce any wear. The wear rate of those alloys was found to be dependent not only on their hardness, but also the toughness, an alternative to the well-accepted Archard-based equations.
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September 2018
Research-Article
Effects of Microstructure of Quasicrystal Alloys on Their Mechanical and Tribological Performance
Kyungjun Lee,
Kyungjun Lee
Department of Mechanical Engineering,
Texas A&M University,
College Station, TX 77843-3123
e-mail: lee23834@tamu.edu
Texas A&M University,
College Station, TX 77843-3123
e-mail: lee23834@tamu.edu
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Wei Dai,
Wei Dai
Department of Mechanical Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: daiwei7@tamu.edu
Texas A&M University,
College Station, TX 77843
e-mail: daiwei7@tamu.edu
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Donald Naugle,
Donald Naugle
Department of Physics & Astronomy,
Texas A&M University,
College Station, TX 77843
e-mail: naugle@physics.tamu.edu
Texas A&M University,
College Station, TX 77843
e-mail: naugle@physics.tamu.edu
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Hong Liang
Hong Liang
Department of Mechanical Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: hliang@tamu.edu
Texas A&M University,
College Station, TX 77843
e-mail: hliang@tamu.edu
Search for other works by this author on:
Kyungjun Lee
Department of Mechanical Engineering,
Texas A&M University,
College Station, TX 77843-3123
e-mail: lee23834@tamu.edu
Texas A&M University,
College Station, TX 77843-3123
e-mail: lee23834@tamu.edu
Wei Dai
Department of Mechanical Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: daiwei7@tamu.edu
Texas A&M University,
College Station, TX 77843
e-mail: daiwei7@tamu.edu
Donald Naugle
Department of Physics & Astronomy,
Texas A&M University,
College Station, TX 77843
e-mail: naugle@physics.tamu.edu
Texas A&M University,
College Station, TX 77843
e-mail: naugle@physics.tamu.edu
Hong Liang
Department of Mechanical Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: hliang@tamu.edu
Texas A&M University,
College Station, TX 77843
e-mail: hliang@tamu.edu
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received May 28, 2017; final manuscript received February 23, 2018; published online April 10, 2018. Assoc. Editor: Min Zou.
J. Tribol. Sep 2018, 140(5): 051605 (8 pages)
Published Online: April 10, 2018
Article history
Received:
May 28, 2017
Revised:
February 23, 2018
Citation
Lee, K., Dai, W., Naugle, D., and Liang, H. (April 10, 2018). "Effects of Microstructure of Quasicrystal Alloys on Their Mechanical and Tribological Performance." ASME. J. Tribol. September 2018; 140(5): 051605. https://doi.org/10.1115/1.4039528
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