A comparative study of electrochemical corrosion behavior in Laser and TIG welded Ti–5Al–2.5Sn alloy | Zendy

Muhammad Shamir | Zendy; Massab Junaid | Zendy; Fahd Nawaz Khan | Zendy; Aqeel Ahmad Taimoor | Zendy; Mirza Nadeem Baig | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

A comparative study of electrochemical corrosion behavior in Laser and TIG welded Ti–5Al–2.5Sn alloy

Author(s) -

Muhammad Shamir,

Massab Junaid,

Fahd Nawaz Khan,

Aqeel Ahmad Taimoor,

Mirza Nadeem Baig

Publication year - 2017

Publication title -

journal of materials research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.832

H-Index - 44

eISSN - 2214-0697

pISSN - 2238-7854

DOI - 10.1016/j.jmrt.2017.09.006

Subject(s) - materials science , gas tungsten arc welding , metallurgy , welding , corrosion , dielectric spectroscopy , acicular , alloy , galvanic cell , laser beam welding , oxide , martensite , galvanic corrosion , electrochemistry , composite material , microstructure , arc welding , electrode , chemistry

Corrosion behavior of TIG and laser welded Ti–5Al–2.5Sn alloy was compared using different electrochemical techniques. Bead on plate (BoP) configuration was used for welding of 1.6 mm thick Ti–5Al–2.5Sn plates which led to the formation of complete α′ martensitic structure in laser welds and acicular α along with α′ martensite within coarse prior β grains was observed in TIG welds. Potentiodynamic and cyclic polarization were carried out in 5, 7 and 9 M HNO3 to study the effect of concentration on the galvanic corrosion of laser and TIG welded Ti–5Al–2.5Sn. The oxide layer developed after 192 h of immersion in fuming HNO3 was studied using electrochemical impedance spectroscopy (EIS) and SEM. All the samples showed good passivity but different oxidation behavior was observed mainly because of the surface modification after the welding operation.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research