Details

Autor(en) / Beteiligte

• Smith, Thale R.
• Sugar, Joshua D.
• Schoenung, Julie M.
• San Marchi, Chris

Titel

Anomalous Annealing Response of Directed Energy Deposited Type 304L Austenitic Stainless Steel

Ist Teil von

• JOM (1989), 2018-03, Vol.70 (3), p.358-363

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Directed energy deposited (DED) and forged austenitic stainless steels possess dissimilar microstructures but can exhibit similar mechanical properties. In this study, annealing was used to evolve the microstructure of both conventional wrought and DED type 304L austenitic stainless steels, and significant differences were observed. In particular, the density of geometrically necessary dislocations and hardness were used to probe the evolution of the microstructure and properties. Forged type 304L exhibited the expected decrease in measured dislocation density and hardness as a function of annealing temperature. The more complex microstructure–property relationship observed in the DED type 304L material is attributed to compositional heterogeneities in the solidification microstructure.