Development, Characterization, Mechanical and Corrosion Behaviour Investigation of Multi-direction Forged Mg–Zn Alloy

Gajanan Anne,Goutham Kumar,Sandeep Sahu,Shashibhushan Arya,S Ramesh,H Shivananda Nayaka,M R Ramesh

doi:10.1007/978-3-030-05789-3_50

Development, Characterization, Mechanical and Corrosion Behaviour Investigation of Multi-direction Forged Mg–Zn Alloy

Gajanan Anne, Goutham Kumar + Show 5 more

https://doi.org/10.1007/978-3-030-05789-3_50

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Publication Date: Jan 1, 2019

Citations: 1

Affiliation: Indian Institute of Technology Kanpur, Institute of Technology Management, National Institute of Technology Karnataka

#Zn Alloy #Multi-direction Forging + Show 8 more

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Abstract

In the present study, homogenized Mg−4%Zn (wt%) alloy was exposed to multi-direction forging (MDF) at 280 °C up to 5 passes successfully. Microstructural evolution, mechanical properties and corrosion behavior of the MDF-processed Mg−4%Zn alloy was investigated using different characterization techniques. Five passes of MDF (cumulative strain, ΣΔe = 3.45) led to the formation of ultrafine grain structure (grain size ~2.3 μm) with high angle grain boundaries (HAGBs) and high dislocation density. Corresponding ultimate tensile strength (UTS) and microhardness were observed to be 228 MPa and 88 Hv. Potentiodynamic polarization test results exhibited higher corrosion resistance (0.38 mm/y) in comparison with that of homogenized condition (1.33 mm/y).

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