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Microstructure and mechanical properties of Inconel 625 fabricated by wire-arc additive manufacturing
- Source :
- Surface and Coatings Technology. 374:116-123
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- In the present study Inconel 625 alloy fabricated using Cold Metal Transfer (CMT) Wire Arc Additive Manufacturing (WAAM) has been investigated. The microstructure and mechanical properties of the fabricated Inconel625 alloy, and the influence of torch travel speed on the properties of the manufactured specimens were researched. Microstructural studies revealed variation in microstructure in different layers of the specimen, with the bottom layer consisting of fine primary cellular grains. Mechanical properties that include hardness and tensile properties showed that with the increase in the travel speed, average micro-hardness of the manufactured specimens slightly improved from 248 HV to 253 HV. The ultimate tensile strength (UTS) increased from 647 MPa to 687 MPa, while yield strength (YS) increased from 376 MPa to 400 MPa. Results showed that the mechanical performance of the manufactured components by CMT-WAAM method was better than the mechanical properties of Inconel 625 alloy casting parts except UTS, which demonstrated that the Inconel 625 alloys can be fabricated by cold metal transfer process.
- Subjects :
- 0209 industrial biotechnology
Materials science
Chemical substance
Alloy
02 engineering and technology
Surfaces and Interfaces
General Chemistry
engineering.material
021001 nanoscience & nanotechnology
Condensed Matter Physics
Inconel 625
Microstructure
Casting
Surfaces, Coatings and Films
law.invention
020901 industrial engineering & automation
Magazine
law
Ultimate tensile strength
Materials Chemistry
engineering
Composite material
0210 nano-technology
Layer (electronics)
Subjects
Details
- ISSN :
- 02578972
- Volume :
- 374
- Database :
- OpenAIRE
- Journal :
- Surface and Coatings Technology
- Accession number :
- edsair.doi...........7176b1bc55d780bb69966f904ea5f3f2