Optimising and Assessing the Properties of Iron Alloy Powders for Near-net Shape Manufacturing Processes
Characterising the physical and structural properties of metal powders for use in near-net shape manufacturing processes is important for assessing their suitability for a particular process route or end use application.Key characteristics include particle size distribution,particle shape,surface condition and microstructure,which impact powder properties such as packing,flowability,compressibility and sintering behaviour.By better understanding the relationship between particle characteristics,bulk powder properties and process factors in relation to final product performance,it should be possible to develop a more robust and optimal set of design and manufacturing rules to give the required part consistency and quality.In this paper we present the results of a study to investigate how the physical properties of several iron-based alloy powders,produced using different manufacturing methods,influence performance in a Cold Isostatic Pressing(CIP)process.Measured physical properties include particle size,particle shape,hardness and phase composition.Batches that showed poor performance were physically modified in an attempt to improve process performance and the impact of the modifications on CIP suitability and measured physical properties were assessed.
metal powders structural characterization particle morphology elemental composition Cold Isostatic Pressing (CIP)
Dawes Jason Taylor Mark Norberg Nicholas Virden Anne Huck-Jones Debbie Langley Cathryn
Manufacturing Technology Centre Limited Coventry,UK CV2 2TF Malvern Panalytical Almelo,Netherlands Malvern Panalytical Malvern,UK
国际会议
北京
英文
182-188
2018-09-16（万方平台首次上网日期，不代表论文的发表时间）