Mitigating Corrosion Effects of Ti-48Al-2Cr-2Nb Alloy Fabricated via Electron Beam Melting (EBM) Technique by Regulating the Immersion Conditions

被引：19
作者：
Abdo, Hany S. [1 ]
Samad, Ubair Abdus [1 ]
Mohammed, Jabair Ali [1 ]
Ragab, Sameh A. [1 ]
Seikh, Asiful H. [1 ]
机构：
[1] King Saud Univ, Mech Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
来源：
CRYSTALS | 2021年 / 11卷 / 08期
关键词：
electron beam melting; titanium alloys; corrosion behavior; polarization; EIS; MECHANICAL-PROPERTIES; POLARIZATION; TITANIUM;
D O I：
10.3390/cryst11080889
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The corrosion behavior of newly fabricated gamma-TiAl alloy was studied using electrochemical impedance spectroscopy (EIS) and cyclic potentiodynamic polarization (CPP) techniques. The gamma-TiAl alloy was produced from powder with compositions of Ti-48Al-2Cr-2Nb processed using electron beam melting (EBM) technique. The corrosion behavior of the bulk alloy was investigated in 1 M HCl solution for different immersion times and temperatures. The experimental results suggest that the fabricated alloy exhibits good resistance to corrosion in acid solution at room temperature. The results also indicate that with an increase in immersion time and solution temperature, the corrosion potential (Ecorr) shifts to a higher positive value, resulting in an increase in corrosion current (jcorr) and consequently a decrease in the corrosion resistance (Rp) of the alloy.
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页数：12
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