Influence from Size and Morphology of Mn5Si3 on Wear Resistance of Cu-Zn-Al-Mn-Si Alloys
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Detail(s)
Original language | English |
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Pages (from-to) | 3148–3157 |
Journal / Publication | Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science |
Volume | 50 |
Issue number | 7 |
Online published | 2 May 2019 |
Publication status | Published - Jul 2019 |
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Abstract
In this study, the microstructure, hardness, and wear resistance of two kinds of copper alloy are demonstrated to be affected by both composition, annealing temperature, and phases present with a sliding block-on-ring test, where the ring is 316 stainless steel. With a higher content of Zn, the solubility of Mn and Si would decrease, resulting in increased volume fraction of the hard ω-Mn5Si3 phase (with a high nanoindentation hardness of 12.9 GPa). Moreover, the higher contents of Mn and Si lead to the formation of large primary polyhedron Pω-Mn5Si3 cylinders during solidification. With the help of two-stage forging, the primary polyhedron Pω-Mn5Si3 grow along [0001], enabling the large primary Mn5Si3 cylinders all parallel to each other. This special microstructure could significantly improve the wear resistance in comparison with the samples with a microstructure containing only small and randomly oriented precipitates. Such parallel primary polyhedron Pω-Mn5Si3 cylinders can act as reinforcements to grab the matrix, effectively improving the wear resistance.
Citation Format(s)
Influence from Size and Morphology of Mn5Si3 on Wear Resistance of Cu-Zn-Al-Mn-Si Alloys. / LIN, Y.H.; CHUANG, W.S.; HUANG, J.C. et al.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 50, No. 7, 07.2019, p. 3148–3157.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 50, No. 7, 07.2019, p. 3148–3157.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review