Work

A method to compare the effects of the grain boundary misorientation and grain boundary plane orientation on thermal sensitisation

Year: 2025

Type: article

Abstract: Thermal sensitisation of austenitic stainless steel may cause the premature failure of piping materials at an elevated temperature due to loss of corrosion resistance. Grain boundary properties are widely studied as the factors of thermal sensitisation. In this research, a new method is proposed to compare the relationship between thermal sensitisation of individual boundaries with two grain boundary properties: grain boundary misorientation and grain boundary plane orientation. A heat-treated UNS S30400 stainless steel sample was serial-sectioned by FIB (Focused Ion Beam), and two grain boundary properties can be obtained from the 3D reconstructed volume. EDS (Energy-Dispersive X-ray Spectroscopy) was performed on two foils extracted from the remaining material to quantify thermal sensitisation by measuring the chromium depletion of individual boundaries.

Source: International Journal of Pressure Vessels and Piping

DOI: 10.1016/j.ijpvp.2025.105619

Authors: Kuo Yuan, Xiangli Zhong, Elisabeth Francis, Ronald Clark, Matthew Peel, Mahmoud Mostafavi

Institutions: University of Bristol, Henry Royce Institute, National Nuclear Laboratory, Monash University

Language: English

Topic: Hydrogen embrittlement and corrosion behaviors in metals

Subfield: Metals and Alloys

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,620

OpenAlex ID: W4413475180

FWCI: 0.216

Cites: 38

Cited by: 1

Related to: 10