Big Ideas 2015

Prof. Madeleine du Toit Madeleine du Toit



"My research interests include welding metallurgy, welding engineering, stainless steel, titanium and aluminium alloys".


I am Titanium

Titanium is critical in applications in the chemical, aerospace, marine and medical fields on account of its low density, excellent corrosion resistance and high strength-to-weight ratio. Titanium products can be manufactured using a number of processes, but larger components for engineering applications are typically produced using costly machining processes. Using fusion welding to join smaller subassemblies into complex components, or using arc-wire deposition additive manufacturing techniques can serve as alternatives, but may result in the formation of coarse titanium grain structures that reduce the strength and toughness of the component. Professor Madeleine Du Toit investigates the in-situ grain refinement of titanium alloys to produce a more superior product for worldwide use.

Madeleine du Toit is a Programme Leader in the Energy Pipelines CRC. Madeleine holds BEng, MEng and PhD degrees in Metallurgical Engineering from the University of Pretoria in South Africa and a Masters degree in Welding Engineering from the University of the Witwatersrand. She is a registered Professional Engineer in South Africa and a qualified International Welding Engineer. She served as President and member of Council of the Southern African Institute of Welding from 2010 to 2014, and as Chairperson of the Governing Board of SAIW Certification from 2005 to 2014. Madeleine is actively involved in the activities of the International Institute of Welding as part of the Australian delegation.

Last reviewed: 18 March, 2016