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ECB. 2014; 3(12): 1031-1035 HIGH ENTROPY ALLOYS AND CORROSION RESISTANCE –A
BIRD’S EYE VIEWS. John Mary, R. Nagalakshmi, Susai Rajendran, R. Epshipha. Abstract | | | | The introduction of high entropy alloys (HEA) concept broke up the traditional rule that the main elements take up more than 50% atomic
content. HEA means that alloys are composed of multi elements and each takes up a relatively high but less than 35% of atomic content.
The properties of this innovative alloy are decided by the combined action of multi elements. HEA tends to form simple crystallization
phase. By controlling the composition, it is possible to achieve high-hardness and high-abrasion performance at high temperature,
Microstructure and properties of several HEAs prepared by various methods such as powder metallurgy laser cladding etc, are discussed.
The corrosion resistance of HEAs is also discussed.
Key words: High entropy alloys; corrosion resistance; micro structure; properties, applications
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