Characterisation of austenitic 316LSi stainless steel produced by wire arc additive manufacturing with interlayer cooling

Chloe Cunningham; Jie Wang; Vimal Dhokia; Alborz Shokrani; Stephen Newman

Characterisation of austenitic 316LSi stainless steel produced by wire arc additive manufacturing with interlayer cooling

Chloe Cunningham, Jie Wang, Vimal Dhokia, Alborz Shokrani, Stephen Newman

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

26 Citations (SciVal)

117 Downloads (Pure)

Abstract

Wire arc additive manufacturing (WAAM) expands the possibilities of cost effectively producing large-scale, complex metal objects at high deposition rates. However, the variation in the WAAM process parameters is not well understood, despite greatly affecting the materials properties, part functionality and the economics of WAAM production. Austenitic stainless steel is a commonly used material and has many applications in the marine and nuclear industry due to its high toughness and corrosion resistance. In this research, the effects of the interpass temperature and heat input process parameters on WAAM of austenitic AISI 316LSi stainless steel are experimentally analysed and evaluated. It was found that the heat input and interpass temperature influences the cellular/dendritic morphology and the formation of macro-scale grains within the microstructure. Additionally, use of higher heat input, resulted in a 28.7% improvement in average Young’s modulus compared to lower heat input, although this remained lower than provided by wrought annealed material.

Original language	English
Title of host publication	International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings
Publication status	Published - 1 Nov 2019
Event	Solid Freeform Fabrication 2019: Proceedings of the 30th Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference - Hilton Austin, Austin, USA United States Duration: 12 Aug 2019 → 14 Aug 2019 https://sffsymposium.engr.utexas.edu/

Publication series

Name	International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings

Conference

Conference	Solid Freeform Fabrication 2019: Proceedings of the 30th Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference
Country/Territory	USA United States
City	Austin
Period	12/08/19 → 14/08/19
Internet address	https://sffsymposium.engr.utexas.edu/

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

M138920 updated finalFinal published version, 2.18 MBLicence: CC BY

http://utw10945.utweb.utexas.edu/sites/default/files/2019/034%20Characterisation%20of%20Austenitic%20316LSi%20Stainless%20St.pdf

Instron Testing Machine
Department of Architecture & Civil Engineering
Facility/equipment: Equipment
Retrofitted 8800 Control Tower for 200 kN Mayes Machine
Department of Architecture & Civil Engineering
Facility/equipment: Equipment

Cite this

Cunningham, C., Wang, J., Dhokia, V., Shokrani, A., & Newman, S. (2019). Characterisation of austenitic 316LSi stainless steel produced by wire arc additive manufacturing with interlayer cooling. In International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings (International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings). http://utw10945.utweb.utexas.edu/sites/default/files/2019/034%20Characterisation%20of%20Austenitic%20316LSi%20Stainless%20St.pdf

Characterisation of austenitic 316LSi stainless steel produced by wire arc additive manufacturing with interlayer cooling. / Cunningham, Chloe; Wang, Jie ; Dhokia, Vimal et al.
International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings. 2019. (International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings).

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Cunningham, C, Wang, J , Dhokia, V , Shokrani, A & Newman, S 2019, Characterisation of austenitic 316LSi stainless steel produced by wire arc additive manufacturing with interlayer cooling. in International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings. International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings, Solid Freeform Fabrication 2019: Proceedings of the 30th Annual International
Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference, Austin, Texas, USA United States, 12/08/19. <http://utw10945.utweb.utexas.edu/sites/default/files/2019/034%20Characterisation%20of%20Austenitic%20316LSi%20Stainless%20St.pdf>

Cunningham C, Wang J , Dhokia V , Shokrani A , Newman S. Characterisation of austenitic 316LSi stainless steel produced by wire arc additive manufacturing with interlayer cooling. In International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings. 2019. (International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings).

Cunningham, Chloe ; Wang, Jie ; Dhokia, Vimal et al. / Characterisation of austenitic 316LSi stainless steel produced by wire arc additive manufacturing with interlayer cooling. International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings. 2019. (International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings).

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title = "Characterisation of austenitic 316LSi stainless steel produced by wire arc additive manufacturing with interlayer cooling",

abstract = "Wire arc additive manufacturing (WAAM) expands the possibilities of cost effectively producing large-scale, complex metal objects at high deposition rates. However, the variation in the WAAM process parameters is not well understood, despite greatly affecting the materials properties, part functionality and the economics of WAAM production. Austenitic stainless steel is a commonly used material and has many applications in the marine and nuclear industry due to its high toughness and corrosion resistance. In this research, the effects of the interpass temperature and heat input process parameters on WAAM of austenitic AISI 316LSi stainless steel are experimentally analysed and evaluated. It was found that the heat input and interpass temperature influences the cellular/dendritic morphology and the formation of macro-scale grains within the microstructure. Additionally, use of higher heat input, resulted in a 28.7% improvement in average Young{\textquoteright}s modulus compared to lower heat input, although this remained lower than provided by wrought annealed material.",

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AU - Dhokia, Vimal

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AU - Newman, Stephen

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N2 - Wire arc additive manufacturing (WAAM) expands the possibilities of cost effectively producing large-scale, complex metal objects at high deposition rates. However, the variation in the WAAM process parameters is not well understood, despite greatly affecting the materials properties, part functionality and the economics of WAAM production. Austenitic stainless steel is a commonly used material and has many applications in the marine and nuclear industry due to its high toughness and corrosion resistance. In this research, the effects of the interpass temperature and heat input process parameters on WAAM of austenitic AISI 316LSi stainless steel are experimentally analysed and evaluated. It was found that the heat input and interpass temperature influences the cellular/dendritic morphology and the formation of macro-scale grains within the microstructure. Additionally, use of higher heat input, resulted in a 28.7% improvement in average Young’s modulus compared to lower heat input, although this remained lower than provided by wrought annealed material.

AB - Wire arc additive manufacturing (WAAM) expands the possibilities of cost effectively producing large-scale, complex metal objects at high deposition rates. However, the variation in the WAAM process parameters is not well understood, despite greatly affecting the materials properties, part functionality and the economics of WAAM production. Austenitic stainless steel is a commonly used material and has many applications in the marine and nuclear industry due to its high toughness and corrosion resistance. In this research, the effects of the interpass temperature and heat input process parameters on WAAM of austenitic AISI 316LSi stainless steel are experimentally analysed and evaluated. It was found that the heat input and interpass temperature influences the cellular/dendritic morphology and the formation of macro-scale grains within the microstructure. Additionally, use of higher heat input, resulted in a 28.7% improvement in average Young’s modulus compared to lower heat input, although this remained lower than provided by wrought annealed material.

M3 - Chapter in a published conference proceeding

T3 - International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings

BT - International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference Proceedings

T2 - Solid Freeform Fabrication 2019: Proceedings of the 30th Annual International<br/>Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference

Y2 - 12 August 2019 through 14 August 2019

ER -

Characterisation of austenitic 316LSi stainless steel produced by wire arc additive manufacturing with interlayer cooling

Abstract

Publication series

Conference

UN SDGs

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Equipment

Instron Testing Machine

Retrofitted 8800 Control Tower for 200 kN Mayes Machine

Cite this