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First reported in the early 2000s, a new generation of metals called 'high-entropy alloys' (HEAs) have the potential to outperform conventional alloys that rely on a primary base metal. The plethora of five or more metallic elements when alloyed in equiatomic or near equiatomic creates a vast HEA material hyperspace that can lead to exceptional technical properties. This paper provides insights into HEAdevelopment in Australia; in particular, the additive manufacturing of HEA deposits through thermal spray and laser-based methods. [ABSTRACT FROM AUTHOR]

CSIRO has extensive experience and track record in turning powders into products. Through the CSIRO Lab 22 and associations, the teams in CSIRO are tailoring metal powders to processes, repurposing waste for additive manufacturing (AM) processes and generating unique materials, products and processes for Australia. The laboratory also houses Australia's own metal printer from Aurora Labs that can operate in both direct laser melting (DLM) and laser powder bed fusion (LPBF) modes. This paper discusses capability and case study examples, with some scientific detail, as we work to mainstream and industrialise AM. [ABSTRACT FROM AUTHOR]

As rail operators look for efficiency improvement, a new trend towards integration of detection technologies on revenue raising rolling stock has emerged, the objective being that a saving can be made by eliminating specialised rolling stock and reducing network scheduling. An area currently attracting research attention in the Australian heavy haul segment is the detection of rail foot flaws from moving vehicles through the use of Infrared Thermography. This paper presents a modelling and simulation methodology for full train simulation using a co-simulation approach for calculating heat transfer in the rail under a number of different vehicle system dynamics cases. The excitation source for the heat transfer focuses only on wheel/rail contact mechanics. The paper will explore the problem from a Modulated Thermography perspective that uses periodic heating and observation of the heating process for flaw detection. [ABSTRACT FROM AUTHOR]