Anneal-Hardening Behavior of Cr-Fe-C Alloy Deposits Prepared in a Cr3+-Based Bath with Fe2+ Ions
1
Department of Mechanical Engineering, Chang Gung University, Taoyuan 333, Taiwan
2
Department of Mechanical Engineering, Ming Chi University of Technology, New Taipei 243, Taiwan
3
Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
*
Author to whom correspondence should be addressed.
Materials 2017, 10(12), 1392; https://doi.org/10.3390/ma10121392
Received: 28 September 2017
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Revised: 26 November 2017
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Accepted: 27 November 2017
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Published: 5 December 2017
(This article belongs to the Special Issue Materials Engineering—Select papers from Asia Conference on Mechanical and Materials Engineering (ACMME 2017))
Cr-Fe-C alloy deposits were successfully prepared on high-carbon tool steel in a Cr3+-based electroplating bath containing Fe2+ ions and suitable complex agents. A Cr-based alloy deposit was obtained with an electroplating current density higher than 25 Adm−2, and a Fe-based alloy deposit was obtained using a current density of 20 Adm−2. Following electroplating, these alloy deposited specimens were annealed via rapid thermal annealing (RTA) at 500 °C for different periods up to 30 s. The experimental results show that Cr- and Fe-based alloy deposits could be significantly hardened after RTA at 500 °C for a few seconds. The maximum hardness was that of the Cr-Fe-C alloy deposit annealed at 500 °C for 10 s. The maximum hardness of 1205 Hv was detected from the annealed Cr-based alloy deposit prepared with 30 ASD. The hardening mechanism of annealed Cr- and Fe-based alloy deposits is attributed to the precipitation of C-related membranes. The hardness values of the annealed Cr- and Fe-based alloy deposits increase with the increasing degree of crystallization of the C-related membranes.
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MDPI and ACS Style
Huang, C.A.; Chen, J.Y.; Wang, H.; Lai, P.L. Anneal-Hardening Behavior of Cr-Fe-C Alloy Deposits Prepared in a Cr3+-Based Bath with Fe2+ Ions. Materials 2017, 10, 1392. https://doi.org/10.3390/ma10121392
AMA Style
Huang CA, Chen JY, Wang H, Lai PL. Anneal-Hardening Behavior of Cr-Fe-C Alloy Deposits Prepared in a Cr3+-Based Bath with Fe2+ Ions. Materials. 2017; 10(12):1392. https://doi.org/10.3390/ma10121392
Chicago/Turabian StyleHuang, Ching A., Jhih Y. Chen, Hai Wang, and Po L. Lai. 2017. "Anneal-Hardening Behavior of Cr-Fe-C Alloy Deposits Prepared in a Cr3+-Based Bath with Fe2+ Ions" Materials 10, no. 12: 1392. https://doi.org/10.3390/ma10121392
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