Journal
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Volume 35, Issue 9, Pages 2086-2098Publisher
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2019.04.012
Keywords
Mg-6Al-1zn-xFe alloys; Fracturing balls; Corrosion; Mechanical properties
Funding
- National Natural Science Foundation of China [51671041, 51701029, 51531002]
- National Key Research and Development Program of China [2016YFB0301100]
- Fundamental Research Funds for the Central Universities [106112016CDJXZ138811, 2018CDGFCL005]
- China Postdoctoral Science Foundation [2017M620410, 2018T110942]
- Chongqing Postdoctoral Scientific Research Foundation [Xm2017010]
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Mg-6Al-1Zn-xFe (x = 0, 1, 3, 5 and 7 wt%) alloys were prepared by powder metallurgy and followed by hot extrusion. Majority of Fe element exists as insoluble particles in the alloys. The as-extruded alloys showed higher degradable rates but less stable mechanical properties than as-annealed alloys. Corrosion rate of all the alloys increased with increasing Fe concentration, reaching 2.4 mL cm(-2) h(-1).0.2% yield strength of all the alloys was higher than 150 MPa. In short, Mg-6Al-1Zn-xFe alloys have an attractive combination of corrosion and mechanical properties, which holds a bright future for fracturing balls applications. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of journal of Materials Science & Technology.
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