The Effect of Technological Parameters on the Microstructure and Mechanical Properties of AlSi17Cu4 Alloy

<p>The mechanical properties (HB, HV, <em>R<sub>0.2</sub></em>,<sub> </sub><em>Rm</em>) and plastic properties (<em>A<sub>5</sub></em><sub>, </sub><em>Z</em>) of AlSi17Cu4 alloy when exposed to chos...

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Main Authors: Jaroslaw PIĄTKOWSKI, Robert WIESZAŁA, Marta ZIEMNICKA-SYLWESTER
Format: Article
Language:English
Published: Kaunas University of Technology 2016-09-01
Series:Medžiagotyra
Subjects:
Online Access:http://matsc.ktu.lt/index.php/MatSc/article/view/8490
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author Jaroslaw PIĄTKOWSKI
Robert WIESZAŁA
Marta ZIEMNICKA-SYLWESTER
author_facet Jaroslaw PIĄTKOWSKI
Robert WIESZAŁA
Marta ZIEMNICKA-SYLWESTER
author_sort Jaroslaw PIĄTKOWSKI
collection DOAJ
description <p>The mechanical properties (HB, HV, <em>R<sub>0.2</sub></em>,<sub> </sub><em>Rm</em>) and plastic properties (<em>A<sub>5</sub></em><sub>, </sub><em>Z</em>) of AlSi17Cu4 alloy when exposed to chosen technological processes, such as modification, overheating and rapid cooling, are presented in this paper. The best combination of properties was noticed in alloy overheated for 40 minutes at 920 <sup>o</sup>C and casted into a metallic mould submerged in liquid nitrogen. Moreover, the technological stability and homogeneity of alloys were evaluated based on spread of results, expressed by standard deviation. It was proven, based on microstructure analysis, that the best effect of refinement was achieved by intensive cooling of alloy preceded by its overheating. The XRD analysis indicated that the intermetallic phases, mainly θ(Al<sub>2</sub>Cu) and γ<sub>1</sub>(Al<sub>4</sub>Cu<sub>9</sub>) caused hardening of the solution, improvement in mechanical properties and technological stability.</p><p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.22.3.8490">http://dx.doi.org/10.5755/j01.ms.22.3.8490</a></p>
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spelling doaj.art-372b4f7d18ca4b8cbf95e8546c6738992022-12-21T19:02:12ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892016-09-0122333033610.5755/j01.ms.22.3.84907286The Effect of Technological Parameters on the Microstructure and Mechanical Properties of AlSi17Cu4 AlloyJaroslaw PIĄTKOWSKI0Robert WIESZAŁA1Marta ZIEMNICKA-SYLWESTER2Department of Materials Technology, Faculty of Materials Science and Metallurgy, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, PolandFaculty of Transport, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, PolandDivision of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita –Ku 060-8628 Sapporo, Japan<p>The mechanical properties (HB, HV, <em>R<sub>0.2</sub></em>,<sub> </sub><em>Rm</em>) and plastic properties (<em>A<sub>5</sub></em><sub>, </sub><em>Z</em>) of AlSi17Cu4 alloy when exposed to chosen technological processes, such as modification, overheating and rapid cooling, are presented in this paper. The best combination of properties was noticed in alloy overheated for 40 minutes at 920 <sup>o</sup>C and casted into a metallic mould submerged in liquid nitrogen. Moreover, the technological stability and homogeneity of alloys were evaluated based on spread of results, expressed by standard deviation. It was proven, based on microstructure analysis, that the best effect of refinement was achieved by intensive cooling of alloy preceded by its overheating. The XRD analysis indicated that the intermetallic phases, mainly θ(Al<sub>2</sub>Cu) and γ<sub>1</sub>(Al<sub>4</sub>Cu<sub>9</sub>) caused hardening of the solution, improvement in mechanical properties and technological stability.</p><p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.22.3.8490">http://dx.doi.org/10.5755/j01.ms.22.3.8490</a></p>http://matsc.ktu.lt/index.php/MatSc/article/view/8490casting, Al-Si alloys, crystallisation, mechanical properties
spellingShingle Jaroslaw PIĄTKOWSKI
Robert WIESZAŁA
Marta ZIEMNICKA-SYLWESTER
The Effect of Technological Parameters on the Microstructure and Mechanical Properties of AlSi17Cu4 Alloy
Medžiagotyra
casting, Al-Si alloys, crystallisation, mechanical properties
title The Effect of Technological Parameters on the Microstructure and Mechanical Properties of AlSi17Cu4 Alloy
title_full The Effect of Technological Parameters on the Microstructure and Mechanical Properties of AlSi17Cu4 Alloy
title_fullStr The Effect of Technological Parameters on the Microstructure and Mechanical Properties of AlSi17Cu4 Alloy
title_full_unstemmed The Effect of Technological Parameters on the Microstructure and Mechanical Properties of AlSi17Cu4 Alloy
title_short The Effect of Technological Parameters on the Microstructure and Mechanical Properties of AlSi17Cu4 Alloy
title_sort effect of technological parameters on the microstructure and mechanical properties of alsi17cu4 alloy
topic casting, Al-Si alloys, crystallisation, mechanical properties
url http://matsc.ktu.lt/index.php/MatSc/article/view/8490
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