Mechanical characteristics of laser-deposited sandwich structures and quasi-homogeneous alloys of Fe-Cu system
The laser metal deposition approach implements a unique opportunity for controlling the fabrication of functionally graded and sandwich structures from different metal powders for artificial physical properties management. In this study, the quasi-homogeneous alloys were fabricated by the simultaneo...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-12-01
|
| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127522009352 |
| _version_ | 1798006941802299392 |
|---|---|
| author | Konstantin I. Makarenko Stepan D. Konev Oleg N. Dubinin Igor V. Shishkovsky |
| author_facet | Konstantin I. Makarenko Stepan D. Konev Oleg N. Dubinin Igor V. Shishkovsky |
| author_sort | Konstantin I. Makarenko |
| collection | DOAJ |
| description | The laser metal deposition approach implements a unique opportunity for controlling the fabrication of functionally graded and sandwich structures from different metal powders for artificial physical properties management. In this study, the quasi-homogeneous alloys were fabricated by the simultaneous feed of bronze and steel powders from different feeders of the LMD installation and the gradient structures by alternating deposition of the materials. The resulting alloys consisted of 50 wt% − 50 wt% and 25 wt% − 75 wt% non-gradient bronze-steel parts and sandwich structures of alternating 250-μm-height steel and bronze layers. The alloy based on aluminum bronze demonstrated the highest ultimate tensile strength (838.6 MPa). Its yield stress amounted to 665 MPa, strain-to-fracture – 0.035, Poisson’s ratio – 0.23, and modulus of resilience – 1.03 MJ/m3. A digital image correlation approach was applied to study the character of major strain distribution in the fabricated specimens and localizations of strain concentrators and compare them with all specimens’ failure areas. Fractography analysis showed a predominantly brittle character of failure. Investigated materials are expected to be applied as interface regions of Fe-Cu system functionally graded structures. |
| first_indexed | 2024-04-11T13:02:23Z |
| format | Article |
| id | doaj.art-20e7d41567b94c6eb1b39a1e9b2aa0cb |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-11T13:02:23Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-20e7d41567b94c6eb1b39a1e9b2aa0cb2022-12-22T04:22:52ZengElsevierMaterials & Design0264-12752022-12-01224111313Mechanical characteristics of laser-deposited sandwich structures and quasi-homogeneous alloys of Fe-Cu systemKonstantin I. Makarenko0Stepan D. Konev1Oleg N. Dubinin2Igor V. Shishkovsky3Additive Manufacturing Laboratory, CMT, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow 121205, Russian Federation; Corresponding author.Additive Manufacturing Laboratory, CMT, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow 121205, Russian FederationAdditive Manufacturing Laboratory, CMT, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow 121205, Russian Federation; World-Class Research Center «Advanced Digital Technologies», Saint Petersburg State Marine Technical University, Lostmanskaya Street 3, Saint Petersburg 190121, Russian FederationAdditive Manufacturing Laboratory, CMT, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow 121205, Russian FederationThe laser metal deposition approach implements a unique opportunity for controlling the fabrication of functionally graded and sandwich structures from different metal powders for artificial physical properties management. In this study, the quasi-homogeneous alloys were fabricated by the simultaneous feed of bronze and steel powders from different feeders of the LMD installation and the gradient structures by alternating deposition of the materials. The resulting alloys consisted of 50 wt% − 50 wt% and 25 wt% − 75 wt% non-gradient bronze-steel parts and sandwich structures of alternating 250-μm-height steel and bronze layers. The alloy based on aluminum bronze demonstrated the highest ultimate tensile strength (838.6 MPa). Its yield stress amounted to 665 MPa, strain-to-fracture – 0.035, Poisson’s ratio – 0.23, and modulus of resilience – 1.03 MJ/m3. A digital image correlation approach was applied to study the character of major strain distribution in the fabricated specimens and localizations of strain concentrators and compare them with all specimens’ failure areas. Fractography analysis showed a predominantly brittle character of failure. Investigated materials are expected to be applied as interface regions of Fe-Cu system functionally graded structures.http://www.sciencedirect.com/science/article/pii/S0264127522009352Laser metal deposition (LMD)Functionally graded materials (FGM)Sandwich structuresHeterogeneous Fe-Cu system alloysDigital image correlation (DIC) |
| spellingShingle | Konstantin I. Makarenko Stepan D. Konev Oleg N. Dubinin Igor V. Shishkovsky Mechanical characteristics of laser-deposited sandwich structures and quasi-homogeneous alloys of Fe-Cu system Materials & Design Laser metal deposition (LMD) Functionally graded materials (FGM) Sandwich structures Heterogeneous Fe-Cu system alloys Digital image correlation (DIC) |
| title | Mechanical characteristics of laser-deposited sandwich structures and quasi-homogeneous alloys of Fe-Cu system |
| title_full | Mechanical characteristics of laser-deposited sandwich structures and quasi-homogeneous alloys of Fe-Cu system |
| title_fullStr | Mechanical characteristics of laser-deposited sandwich structures and quasi-homogeneous alloys of Fe-Cu system |
| title_full_unstemmed | Mechanical characteristics of laser-deposited sandwich structures and quasi-homogeneous alloys of Fe-Cu system |
| title_short | Mechanical characteristics of laser-deposited sandwich structures and quasi-homogeneous alloys of Fe-Cu system |
| title_sort | mechanical characteristics of laser deposited sandwich structures and quasi homogeneous alloys of fe cu system |
| topic | Laser metal deposition (LMD) Functionally graded materials (FGM) Sandwich structures Heterogeneous Fe-Cu system alloys Digital image correlation (DIC) |
| url | http://www.sciencedirect.com/science/article/pii/S0264127522009352 |
| work_keys_str_mv | AT konstantinimakarenko mechanicalcharacteristicsoflaserdepositedsandwichstructuresandquasihomogeneousalloysoffecusystem AT stepandkonev mechanicalcharacteristicsoflaserdepositedsandwichstructuresandquasihomogeneousalloysoffecusystem AT olegndubinin mechanicalcharacteristicsoflaserdepositedsandwichstructuresandquasihomogeneousalloysoffecusystem AT igorvshishkovsky mechanicalcharacteristicsoflaserdepositedsandwichstructuresandquasihomogeneousalloysoffecusystem |