2016
DOI: 10.1590/0001-3765201620150172 View full text |Buy / Rent full text
|
|

Abstract: An experimental study has been carried out to evaluate the microstructural and microhardness evolution on the directionally solidifi ed binary Al-Cu and multicomponent Al-Cu-Si alloys and the infl uence of Si alloying. For this purpose specimens of Al-6wt.%Cu and Al-6wt.%Cu-8wt.%Si alloys were prepared and directionally solidifi ed under transient conditions of heat extraction. A water-cooled horizontal directional solidifi cation device was applied. A comprehensive characterization is performed including expe… Show more

Help me understand this report

Search citation statements

Order By: Relevance
Select...
2
1
0
3
0

Year Published

2018
2018
2018
2018

Publication Types

Select...
2

Relationship

1
1

Authors

Journals

0
3
0
Order By: Relevance
“…It is observed that higher HV values were obtained in the interdendritic regions, in which Si + π + θ particles of high hardness are present. Vasconcelos et al 48 , Araújo et al 28 and Souza et al 40 have found higher HV values for Al-Si multicomponent alloys with addition of Cu and Mg and the authors have attributed to the presence of intermetallic phases (Al 2 Cu and Mg 2 Si) of high hardness in the interdendritic region of the as-solidified samples. In contrast to the procedure adopted in the present study, these authors did not perform HV measurements in the Al-rich and eutectic phases, the HV values reported by them were the means of 20 measurements obtained directly in the casting samples.…”
Section: Resultsmentioning
See 1 more Smart Citation
Create an account to read the remaining citation statements from this report. You will also get access to:
  • Search over 1.2b+ citation statments to see what is being said about any topic in the research literature
  • Advanced Search to find publications that support or contrast your research
  • Citation reports and visualizations to easily see what publications are saying about each other
  • Browser extension to see Smart Citations wherever you read research
  • Dashboards to evaluate and keep track of groups of publications
  • Alerts to stay on top of citations as they happen
  • Automated reference checks to make sure you are citing reliable research in your manuscripts
  • 7 day free preview of our premium features.

Trusted by researchers and organizations around the world

Over 130,000 students researchers, and industry experts at use scite

See what students are saying

rupbmjkragerfmgwileyiopcupepmcmbcthiemesagefrontiersapsiucrarxivemeralduhksmucshluniversity-of-gavle
“…It is observed that higher HV values were obtained in the interdendritic regions, in which Si + π + θ particles of high hardness are present. Vasconcelos et al 48 , Araújo et al 28 and Souza et al 40 have found higher HV values for Al-Si multicomponent alloys with addition of Cu and Mg and the authors have attributed to the presence of intermetallic phases (Al 2 Cu and Mg 2 Si) of high hardness in the interdendritic region of the as-solidified samples. In contrast to the procedure adopted in the present study, these authors did not perform HV measurements in the Al-rich and eutectic phases, the HV values reported by them were the means of 20 measurements obtained directly in the casting samples.…”
Section: Resultsmentioning
“…The dependence of the microhardness (HV) on the microstructure in Al-based binary and multicomponent alloys has been investigated for several directional solidification systems 23,28,38,[41][42][43][44][45][46][47][48] and the results obtained in these studies have shown that power and Hall-Petch types experimental equations may characterize the variation of HV with λ 1 , λ 2 and λ 3 , of which the alloys containing the Si as the major alloying element with Cu/Mg/Sn addition are highlighted. This can be seen in Table 1.…”
Section: Introductionmentioning
“…Additionally, Dias Filho et al [28] have shown that the k 3 evolution of the same Al-Cu alloy during unsteady-state horizontal solidification may also be related to G R and C R by -1.1 and -0.55 power laws, respectively. In the study by Vasconcelos et al [29], the microhardness (HV) dependence on microstructural features of a horizontally solidified Al-6 wt%Cu alloy has been evaluated using power and Hall-Petch-type experimental equation. In a recent investigation, Kaygısız and Marasli [30] analyzed samples of a eutectic Al-30 wt%Cu-6 wt%Mg alloy solidified in a Bridgman-type upward solidification furnace and have proposed experimental equations to represent the functional dependencies of lamellar eutectic spacings (k E ) of both Al 2 CuMg and Al 2 Cu phases, HV profile, tensile strength (r T ), and electrical resistivity (q) on G R .…”
Section: Introductionmentioning