Year

2019

Degree Name

Doctor of Philosophy

Department

School of Mechanical, Materials, Mechatronic and Biomedical Engineering

Abstract

Fusion-bonded epoxy (FBE) coating of line pipe usually induces an increase of yield strength (YS) and yield strength to tensile strength (Y/T) ratio, as well as a decrease of ductility and toughness. This phenomenon is known as strain ageing in pipeline steels. Strain ageing induced by coating of line pipe has become a big concern in pipeline industry because the increase of YS and Y/T as well as the decrease of ductility are believed to have adverse effects on pipeline hydrostatic test, cold field bending and fracture control.

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Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily represent the views of the University of Wollongong.