Next Article in Journal
Variable Pitch Approach for Performance Improving of Straight-Bladed VAWT at Rated Tip Speed Ratio
Previous Article in Journal
Comparison Among Different Rainfall Energy Harvesting Structures
Previous Article in Special Issue
Brazing Ti-48Al-2Nb-2Cr Alloys with Cu-Based Amorphous Alloy Filler
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessCommunication
Appl. Sci. 2018, 8(6), 956; https://doi.org/10.3390/app8060956

Fabrication of Metallic Glass Layers on Al Alloys with Improved Corrosion Resistance and Micro-Hardness by Pulsed Electrical Discharge Treatment

1
Laboratory of Advanced Light Alloy Materials and Devices, Yantai Nanshan University, Longkou 265713, China
2
Hang Xin Material Technology Co. Ltd., Longkou 264006, China
*
Author to whom correspondence should be addressed.
Received: 22 May 2018 / Revised: 6 June 2018 / Accepted: 6 June 2018 / Published: 11 June 2018
(This article belongs to the Special Issue Bulk Metallic Glasses and Their Composites)
View Full-Text   |   Download PDF [2027 KB, uploaded 11 June 2018]   |  

Abstract

Pulsed electrical discharge (PED) is a method that has been employed to fabricate metallic glass (MG) layers on Al-Cu-Mg-(Zn) alloys. Abnormal Al and Cu element segregation has been found on the alloys vitrified surfaces after PED treatment. Surface element evaporation was found and proven to be the main reason for such significant segregation. Benefits to the evaporation of the non-corrosion resisting elements in the MG layers, the corrosion resistance, and the surface hardness of Al-Cu-Mg-Zn alloys have been greatly improved. The average corrosion rates of Al-Cu-Mg-Zn alloys with MG layers were reduced to about 2% of that without MG layers. Additionally, the surface hardness of Al-Cu-Mg-Zn alloys with MG layers was increased to 537.173 (±7) HV0.1. PED treatment is a promising way to synthesize MG layers with controllable element proportions and distributions for wear- and corrosion-resistant coatings on traditional Al-Cu-Mg-Zn alloys. View Full-Text
Keywords: metallic glass; Al alloys; segregation; surfaces metallic glass; Al alloys; segregation; surfaces
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Dai, H.; Sun, J.; Li, Z.; Zhao, J.; Yu, X.; Fang, H.; Chen, J. Fabrication of Metallic Glass Layers on Al Alloys with Improved Corrosion Resistance and Micro-Hardness by Pulsed Electrical Discharge Treatment. Appl. Sci. 2018, 8, 956.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top