Primary dendrite arm spacing effects upon mechanical properties of an Al–3wt%Cu–1wt%Li alloy
| dc.contributor.author | Santos G.A. | |
| dc.contributor.author | Goulart P.R. | |
| dc.contributor.author | Couto A.A. | |
| dc.contributor.author | Garcia A. | |
| dc.date.accessioned | 2024-03-13T00:51:38Z | |
| dc.date.available | 2024-03-13T00:51:38Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | © Springer Science+Business Media Singapore 2017.The imposition of a wide range of operational conditions in foundry and castings processes generates, as a direct consequence, a diversity of solidification structures. It is well known that mechanical properties depend on solidification structures. The literature presents relationships between yield strength and grain size, such as the Hall-Petch’s equation, or ultimate tensile strength and dendrite arm spacing. In this work, an Al–3wt%Cu–1wt%Li alloy was solidified under upward unsteady state heat flow conditions. Heat was directionally extracted only through a water-cooled bottom made of steel (SAE 1020). The aim of the present study is to obtain correlations between the as-cast microstructure, solidification thermal variables and mechanical properties of an Al–3wt%Cu–1wt%Li alloy casting. The results include tip growth rate (VL), cooling rate (Ṫ), primary dendrite arm spacing (λ1), ultimate tensile strength (σUTS) and yield strength (σy) as a function of solidification conditions imposed by the metal/mold system. It is found that the primary dendrite arm spacing decreases with the increase in tip growth rate and cooling rate. In both cases (σUTS and σy = 0.2 %ε), the finer dendritic arrangement presents superior mechanical properties. | |
| dc.description.firstpage | 215 | |
| dc.description.lastpage | 229 | |
| dc.description.volume | 33 | |
| dc.identifier.doi | 10.1007/978-981-10-1602-8_19 | |
| dc.identifier.issn | 1869-8441 | |
| dc.identifier.uri | https://dspace.mackenzie.br/handle/10899/35886 | |
| dc.relation.ispartof | Advanced Structured Materials | |
| dc.rights | Acesso Restrito | |
| dc.subject.otherlanguage | Al–3wt%Cu–1wt%Li alloy | |
| dc.subject.otherlanguage | Mechanical properties | |
| dc.subject.otherlanguage | Primary dendrite arm spacing | |
| dc.subject.otherlanguage | Solidification thermal variables | |
| dc.title | Primary dendrite arm spacing effects upon mechanical properties of an Al–3wt%Cu–1wt%Li alloy | |
| dc.type | Artigo de evento | |
| local.scopus.citations | 16 | |
| local.scopus.eid | 2-s2.0-84982943807 | |
| local.scopus.updated | 2024-05-01 | |
| local.scopus.url | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84982943807&origin=inward |