CMT wire-arc additive manufacturing of 310 austenitic stainless steel: Microstructure-properties relationships
This study examines the microstructure and mechanical properties of 310 austenitic stainless steel produced using cold metal transfer (CMT) wire arc additive manufacturing (WAAM). The microstructure of the WAAM-fabricated wall is characterized by epitaxial growth, elongated columnar grains that exte...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425000651 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841526300512092160 |
|---|---|
| author | Ali Rahimi Morteza Yazdizadeh Masoud Vatan Ara Majid Pouranvari |
| author_facet | Ali Rahimi Morteza Yazdizadeh Masoud Vatan Ara Majid Pouranvari |
| author_sort | Ali Rahimi |
| collection | DOAJ |
| description | This study examines the microstructure and mechanical properties of 310 austenitic stainless steel produced using cold metal transfer (CMT) wire arc additive manufacturing (WAAM). The microstructure of the WAAM-fabricated wall is characterized by epitaxial growth, elongated columnar grains that extend several millimeters in length, and a dendritic sub-solidification structure featuring elongated eutectic δ-ferrite along the interdendritic and grain boundaries. This microstructure contrasts with the annealed hot-rolled AISI 310, which exhibits a δ-ferrite-free, fully austenitic microstructure with fine equiaxed grains. The geometry of the dendrites, including primary and secondary dendrite arm spacing, is influenced by variations in cooling rates both along the building direction and within each deposited layer, as well as by remelting phenomena occurring in the interlayer boundary zone. The tensile behavior and Charpy V-notch impact performance of the additively manufactured part are compared to those of its wrought hot-rolled counterpart. The tensile strength, ductility, and energy absorption during impact tests are affected by the anisotropic microstructure of the manufactured part. The orientation of coarse columnar grains and the alignment of δ-ferrite along the interdendritic and grain boundaries are critical factors influencing the anisotropic tensile properties of the WAAM-fabricated SS310 austenitic stainless steel. |
| format | Article |
| id | doaj-art-bf523ce87d0c4b2796f38ec16dfdcd71 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-bf523ce87d0c4b2796f38ec16dfdcd712025-01-17T04:49:33ZengElsevierJournal of Materials Research and Technology2238-78542025-03-0135881891CMT wire-arc additive manufacturing of 310 austenitic stainless steel: Microstructure-properties relationshipsAli Rahimi0Morteza Yazdizadeh1Masoud Vatan Ara2Majid Pouranvari3Department of Materials Science and Engineering, Sharif University of Technology, 11365-9466, Tehran, IranMAPNA Group, TUGA, Tehran, IranMAPNA Group, TUGA, Tehran, IranDepartment of Materials Science and Engineering, Sharif University of Technology, 11365-9466, Tehran, Iran; Corresponding author.This study examines the microstructure and mechanical properties of 310 austenitic stainless steel produced using cold metal transfer (CMT) wire arc additive manufacturing (WAAM). The microstructure of the WAAM-fabricated wall is characterized by epitaxial growth, elongated columnar grains that extend several millimeters in length, and a dendritic sub-solidification structure featuring elongated eutectic δ-ferrite along the interdendritic and grain boundaries. This microstructure contrasts with the annealed hot-rolled AISI 310, which exhibits a δ-ferrite-free, fully austenitic microstructure with fine equiaxed grains. The geometry of the dendrites, including primary and secondary dendrite arm spacing, is influenced by variations in cooling rates both along the building direction and within each deposited layer, as well as by remelting phenomena occurring in the interlayer boundary zone. The tensile behavior and Charpy V-notch impact performance of the additively manufactured part are compared to those of its wrought hot-rolled counterpart. The tensile strength, ductility, and energy absorption during impact tests are affected by the anisotropic microstructure of the manufactured part. The orientation of coarse columnar grains and the alignment of δ-ferrite along the interdendritic and grain boundaries are critical factors influencing the anisotropic tensile properties of the WAAM-fabricated SS310 austenitic stainless steel.http://www.sciencedirect.com/science/article/pii/S2238785425000651Wire arc additive manufacturingCold metal transfer310 austenitic stainless steelMicrostructureTensile behaviorImpact toughness |
| spellingShingle | Ali Rahimi Morteza Yazdizadeh Masoud Vatan Ara Majid Pouranvari CMT wire-arc additive manufacturing of 310 austenitic stainless steel: Microstructure-properties relationships Journal of Materials Research and Technology Wire arc additive manufacturing Cold metal transfer 310 austenitic stainless steel Microstructure Tensile behavior Impact toughness |
| title | CMT wire-arc additive manufacturing of 310 austenitic stainless steel: Microstructure-properties relationships |
| title_full | CMT wire-arc additive manufacturing of 310 austenitic stainless steel: Microstructure-properties relationships |
| title_fullStr | CMT wire-arc additive manufacturing of 310 austenitic stainless steel: Microstructure-properties relationships |
| title_full_unstemmed | CMT wire-arc additive manufacturing of 310 austenitic stainless steel: Microstructure-properties relationships |
| title_short | CMT wire-arc additive manufacturing of 310 austenitic stainless steel: Microstructure-properties relationships |
| title_sort | cmt wire arc additive manufacturing of 310 austenitic stainless steel microstructure properties relationships |
| topic | Wire arc additive manufacturing Cold metal transfer 310 austenitic stainless steel Microstructure Tensile behavior Impact toughness |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425000651 |
| work_keys_str_mv | AT alirahimi cmtwirearcadditivemanufacturingof310austeniticstainlesssteelmicrostructurepropertiesrelationships AT mortezayazdizadeh cmtwirearcadditivemanufacturingof310austeniticstainlesssteelmicrostructurepropertiesrelationships AT masoudvatanara cmtwirearcadditivemanufacturingof310austeniticstainlesssteelmicrostructurepropertiesrelationships AT majidpouranvari cmtwirearcadditivemanufacturingof310austeniticstainlesssteelmicrostructurepropertiesrelationships |