Microstructure and Mechanical Properties of Welded Additively Manufactured Stainless Steels SS316L

Microstructure and mechanical properties of additively manufactured SS316L has been investigated. The samples produced by selective electron beam melting machine were then subjected to gas tungsten arc welding. Various examinations were performed including metallography and microscopy, hardness test...

Full description

Saved in:
Bibliographic Details
Published in:Metals and materials international 2019, 25(5), , pp.1278-1286
Main Authors: Pasang, T., Kirchner, A., Jehring, U., Aziziderouei, M., Tao, Y., Jiang, C. -P., Wang, J. C., Aisyah, I. S.
Format: Article
Language:English
Subjects:
Additive manufacturing
Arc welding machines
Base metal
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chromium
Coalescing
Digital imaging
Dimpling
Ductile fracture
Ductility tests
Electron beam melting
Engineering Thermodynamics
Fracture surfaces
Gas tungsten arc welding
Grain boundaries
Hardness
Heat affected zone
Heat and Mass Transfer
Heat treating
Machines
Magnetic Materials
Magnetism
Manufacturing
Materials Science
Mechanical properties
Metallic Materials
Metallography
Microscopy
Microstructure
Molybdenum
Necking
Precipitates
Processes
Scanning electron microscopy
Solid Mechanics
Stainless steels
Strain distribution
Weldments
재료공학
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Microstructure and mechanical properties of additively manufactured SS316L has been investigated. The samples produced by selective electron beam melting machine were then subjected to gas tungsten arc welding. Various examinations were performed including metallography and microscopy, hardness testing, and tensile testing coupled with digital image correlation software. Strain distribution was clearly evident on the samples during tensile testing with necking taking place at the heat affected zone on both sides of the weldments. From tensile testing, it was clear that the ductility and strengths of the samples were equal to those of conventionally produced samples such as rolled sheet. Hardness testing indicated the uniform distribution across the base metal and the weldments. Scanning electron microscopy identified the presence of Cr and Mo-rich precipitates on the grain boundaries, while the fracture surface was entirely covered with dimples (microvoid coalescence) indicating a ductile fracture mode.
ISSN:1598-9623
2005-4149
DOI:10.1007/s12540-019-00264-9