Defects and post-manufacturing processes of additively manufactured steels: A Review (Part 2)

Ojo O. O., TABAN E.

MATERIALS TESTING, vol.62, no.8, pp.835-848, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Review
  • Volume: 62 Issue: 8
  • Publication Date: 2020
  • Doi Number: 10.3139/120.111508
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex
  • Page Numbers: pp.835-848
  • Keywords: Steel, additive manufacturing, metal additive manufacturing, 3D printing, additive manufacturing technologies, mechanical properties, microstructure, defects, CRACK GROWTH-BEHAVIOR, AUSTENITIC STAINLESS-STEEL, STRESS-CORROSION CRACKING, STATE-DEPENDENT MECHANICS, STRAIN-RATE SENSITIVITY, RESIDUAL-STRESS, HEAT-TREATMENT, DEFORMATION-BEHAVIOR, TOOL STEEL, TENSILE PROPERTIES
  • Kocaeli University Affiliated: Yes


Design freedom, complex geometry fabrication capability, minimal parts assembly and excellent material utilization attributes of additive manufacturing processes have provided a leverage ground for the development of functional engineering steel parts in the manufacturing industries. Despite the good attributes of additive manufacturing technology, there are still some local and inherent defects of as-built steel parts that can jeopardize the overall integrity of structural steel components. This review paper provides the associated defects of as-built steel and summarizes the post-manufacturing strategies being deployed to mitigate the severity of as-built steel defects. The microstructural and mechanical responses of some specific as-built steel under different fabrication conditions or additive manufacturing techniques are also summarized in this paper.