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Intergranular Corrosion Sensitivity of Welded Joint of Super304H at High Temperature

Year: 2017

Type: article

Abstract: This paper investigated the effect of sensitization time (0h,5h,15h,30h)on intergranular corrosion sensitivity of welded joints of Super304H stainless steel at 650°C by electrochemical impedance spectroscopy (EIS), electrochemical potentiodynamic reactivation (EPR) method and scanning electron microscopy (SEM). EPR results showed that with the increase of sensitization time, the value of reactivation rate Ra increased. Electrochmical impedance spectra of welded joint of super304H for different sensitization time exhibited the similar characteristics. The fitted results showed that the values of Rf decreased with the increase of sensitization time.

Source: Key engineering materials

DOI: 10.4028/www.scientific.net/kem.732.50

Authors: Ya Qing Chen, Jian Chen, Yan Jie Ren, Jian Lin Chen, Jian Jun He, Wei Qiu

Institution: Changsha University of Science and Technology

Language: English

Topic: Hydrogen embrittlement and corrosion behaviors in metals

Subfield: Metals and Alloys

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W2596423964

FWCI:

Cites: 7

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Related to: 10