Mon, 18 September, 2023
NSIRC PhD Student Ahamed Ameen has presented his latest research at the Federation of European Materials Society (FEMS) EuroMat Conference.
Frankfurt, Germany - The conference was attended by experts in the field of materials science, who were eager to learn about Ahamed's topic, which was titled "Wire-Arc Directed Energy Deposition: In-situ temperature measurement of thermal history during Low Alloyed Steel Deposition.”
Ahamed's research explores how varying heat input during deposition, by variation of process parameters, influence the thermal history experienced by a particular layer due to repeated heating. The data gathered is then correlated with microstructure and material properties. The findings from this research place the emphasis on choosing the optimum heat input to avoid heat accumulation during deposition and grain coarsening in the microstructure.
Ahamed’s work is unique, as he is the first researcher to measure the thermal cycles in any additively manufactured deposit.
Joanna Nicholas, Team Manager, Materials Integrity & Performance, TWI Ltd
The presentation session was interactive, with many questions from industry experts focusing on the measurement techniques for temperature evolution during the wire-DED processing. The experts were interested in understanding how the data gathered could be used to improve the properties of the deposited material.
"I received great feedback that will benefit my future research, particularly related to the characterisation of the as-deposited material," said Ahamed.
The research presented by Ahamed has significant implications for the field of materials science. The ability to control the thermal history of a deposited layer can lead to the development of new materials with improved properties. The findings from this research could be applied to a range of industries, including aerospace, automotive, and energy.
Ahamed's research is supported by several partners, including Coventry University, TWI Ltd, Lloyd’s Register Foundation and the National Structural Integrity Research Centre (NSIRC), where he is conducting his PhD. Managing the operations of NSIRC, TWI Ltd is a leading research and technology organisation that specialises in welding, joining, and engineering technologies.
“Ahamed’s work is unique, as he is the first researcher to measure the thermal cycles in any additively manufactured deposit. This is a testament to the innovative work that is being facilitated by NSIRC,” said Joanna Nicholas, Ahamed’s TWI Supervisor. “We are pleased to have played a role within Ahamed’s research and look forward to how it will be developed and applied in the future.”
The FEMS EuroMat Conference is a prestigious event that brings together researchers, scientists, and industry experts from around the world. The conference is focused on the latest developments in the field of materials science and provides a platform for researchers to share their findings and collaborate on new projects.
Ahamed's presentation was well-received by the attendees of the conference, who were impressed by the depth of his research and the potential applications of his findings.
"Thank you to my sponsors Lloyd’s Register Foundation, as well as National Structural Integrity Research Centre, TWI Ltd and Coventry University, for their continued support and valuable contributions that are making my research possible,” said Ahamed.
NSIRC students studying additive manufacturing and DED techniques benefit from TWI's equipment and experience in this field. Photo: TWI Ltd