Additive manufacturing of steels: a review of achievements and challenges

Abstract Metal additive manufacturing (AM), also known as 3D printing, is a disruptive manufacturing technology in which complex engineering parts are produced in a layer-by-layer manner, using a high-energy heating source and powder, wire or sheet as feeding material. The current paper aims to review the achievements in AM of steels in its ability to obtain superior properties that cannot be achieved through conventional manufacturing routes, thanks to the unique microstructural evolution in AM. The challenges that AM encounters are also reviewed, and suggestions for overcoming these challenges are provided if applicable. We focus on laser powder bed fusion and directed energy deposition as these two methods…

• UO
  University of New South Wales

  Award: DE180100440
• DO
  Department of Industry, Innovation and Science, Australian Government

  Award: DE180100440
• AR
  Australian Research Council

  Award: DE180100440