Wear rate at RT and 100 °C and operating temperature range of microalloyed Cu50Zr50 shape memory alloy

Research output: Contribution to journalArticlepeer-review

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Wear rate at RT and 100 °C and operating temperature range of microalloyed Cu50Zr50 shape memory alloy. / Younes, A.; Nnamchi, P.; Medina, J.; Pérez, P.; Villapún, Victor M.; Badimuro, F.; Kamnis, S.; Jimenez-Melero, E.; González, S.

In: Journal of Alloys and Compounds, Vol. 817, 153330, 15.03.2020.

Research output: Contribution to journalArticlepeer-review

Harvard

Younes, A, Nnamchi, P, Medina, J, Pérez, P, Villapún, VM, Badimuro, F, Kamnis, S, Jimenez-Melero, E & González, S 2020, 'Wear rate at RT and 100 °C and operating temperature range of microalloyed Cu50Zr50 shape memory alloy', Journal of Alloys and Compounds, vol. 817, 153330. https://doi.org/10.1016/j.jallcom.2019.153330

APA

Younes, A., Nnamchi, P., Medina, J., Pérez, P., Villapún, V. M., Badimuro, F., Kamnis, S., Jimenez-Melero, E., & González, S. (2020). Wear rate at RT and 100 °C and operating temperature range of microalloyed Cu50Zr50 shape memory alloy. Journal of Alloys and Compounds, 817, [153330]. https://doi.org/10.1016/j.jallcom.2019.153330

Vancouver

Author

Younes, A. ; Nnamchi, P. ; Medina, J. ; Pérez, P. ; Villapún, Victor M. ; Badimuro, F. ; Kamnis, S. ; Jimenez-Melero, E. ; González, S. / Wear rate at RT and 100 °C and operating temperature range of microalloyed Cu50Zr50 shape memory alloy. In: Journal of Alloys and Compounds. 2020 ; Vol. 817.

Bibtex

@article{bbfaeb8bceeb4c598e78e7f5d508abc0,
title = "Wear rate at RT and 100 °C and operating temperature range of microalloyed Cu50Zr50 shape memory alloy",
abstract = "The effect of microalloying with Co on the wear rate and on the operating temperature range of Cu50Zr50 shape memory alloy against 304 stainless steel counterface has been investigated by studying the mass loss and wear behaviour of Cu50Zr50, Cu49.5Zr50Co0.5 and Cu49Zr50Co1 at. % at room temperature (RT) and 100 °C. For the alloys tested at 15 N, maximum wear resistance is achieved at RT for the alloy with 0.5 at. % Co compared to the parent Cu50Zr50 at. % alloy. This is mostly attributed to the effect of Co in promoting stress-induced martensitic transformation (i.e., work-hardening). For wear tests at 100 °C (100 °C plus friction temperature for 1 h), the mass loss is higher than that at RT since martensite partly reverts into soft austenite through an isothermal process. In addition, the alloys are more prone to oxidation with formation of thick oxide layers that can easily get fragmented and detached from the surface thus resulting is higher mass loss than at RT. The effect of Co in promoting martensitic transformation is negligible when testing at 100 °C, since the stress-induced martensite partly reverts into austenite and the thick oxide layer formed on the surface not only masks the effect of the underlaying substrate for it can also easily detach upon wear.",
keywords = "Mechanical properties, Metals and alloys, Quenching, Shape memory",
author = "A. Younes and P. Nnamchi and J. Medina and P. P{\'e}rez and Villap{\'u}n, {Victor M.} and F. Badimuro and S. Kamnis and E. Jimenez-Melero and S. Gonz{\'a}lez",
year = "2020",
month = mar,
day = "15",
doi = "10.1016/j.jallcom.2019.153330",
language = "English",
volume = "817",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Wear rate at RT and 100 °C and operating temperature range of microalloyed Cu50Zr50 shape memory alloy

AU - Younes, A.

AU - Nnamchi, P.

AU - Medina, J.

AU - Pérez, P.

AU - Villapún, Victor M.

AU - Badimuro, F.

AU - Kamnis, S.

AU - Jimenez-Melero, E.

AU - González, S.

PY - 2020/3/15

Y1 - 2020/3/15

N2 - The effect of microalloying with Co on the wear rate and on the operating temperature range of Cu50Zr50 shape memory alloy against 304 stainless steel counterface has been investigated by studying the mass loss and wear behaviour of Cu50Zr50, Cu49.5Zr50Co0.5 and Cu49Zr50Co1 at. % at room temperature (RT) and 100 °C. For the alloys tested at 15 N, maximum wear resistance is achieved at RT for the alloy with 0.5 at. % Co compared to the parent Cu50Zr50 at. % alloy. This is mostly attributed to the effect of Co in promoting stress-induced martensitic transformation (i.e., work-hardening). For wear tests at 100 °C (100 °C plus friction temperature for 1 h), the mass loss is higher than that at RT since martensite partly reverts into soft austenite through an isothermal process. In addition, the alloys are more prone to oxidation with formation of thick oxide layers that can easily get fragmented and detached from the surface thus resulting is higher mass loss than at RT. The effect of Co in promoting martensitic transformation is negligible when testing at 100 °C, since the stress-induced martensite partly reverts into austenite and the thick oxide layer formed on the surface not only masks the effect of the underlaying substrate for it can also easily detach upon wear.

AB - The effect of microalloying with Co on the wear rate and on the operating temperature range of Cu50Zr50 shape memory alloy against 304 stainless steel counterface has been investigated by studying the mass loss and wear behaviour of Cu50Zr50, Cu49.5Zr50Co0.5 and Cu49Zr50Co1 at. % at room temperature (RT) and 100 °C. For the alloys tested at 15 N, maximum wear resistance is achieved at RT for the alloy with 0.5 at. % Co compared to the parent Cu50Zr50 at. % alloy. This is mostly attributed to the effect of Co in promoting stress-induced martensitic transformation (i.e., work-hardening). For wear tests at 100 °C (100 °C plus friction temperature for 1 h), the mass loss is higher than that at RT since martensite partly reverts into soft austenite through an isothermal process. In addition, the alloys are more prone to oxidation with formation of thick oxide layers that can easily get fragmented and detached from the surface thus resulting is higher mass loss than at RT. The effect of Co in promoting martensitic transformation is negligible when testing at 100 °C, since the stress-induced martensite partly reverts into austenite and the thick oxide layer formed on the surface not only masks the effect of the underlaying substrate for it can also easily detach upon wear.

KW - Mechanical properties

KW - Metals and alloys

KW - Quenching

KW - Shape memory

UR - http://www.scopus.com/inward/record.url?scp=85076093786&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2019.153330

DO - 10.1016/j.jallcom.2019.153330

M3 - Article

AN - SCOPUS:85076093786

VL - 817

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

M1 - 153330

ER -