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The Impact of Al-Ti-B Grain-Refiners from Different Manufacturers on Wrought Al-Alloy

Treść / Zawartość
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
To investigate the impact of various Al-Ti-B grain-refiners on solidification and grain-refining performance, a wrought aluminium alloy AA6182 was used. Three different grain-refiners from different manufacturers were used to establish the efficiency, i.e. contact time before casting, on the primary solidification and grain formation size. The primary solidification of α-Al grains at inoculation was observed by using thermal analysis (TA). Differential scanning calorimetry (DSC) was used in order to analyze the quality of various grain-refiners. The size of the primary grains was analyzed using optical microscopy (OM). Scanning electron microscopy (SEM) was used to estimate the size and distribution of Al3Ti and TiB2 particles in various grain-refiners and to establish the best efficiency of the investigated grain-refiners. Within 1-4 min of inoculation the smallest fine equiaxed grains were achieved when either one of the investigated grain-refiners was added. It was established, that grain-refiner A contains higher content of impurities which do not melt in the experimental temperature range made by DSC method. The most pure grain-refiner turned out to be grain-refiner B, in which the most optimal number of TiB2 particles and particle size distribution was found.
Twórcy
autor
  • University of Ljubljana, Faculty of Natural Sciences and Engineering, Aškerčeva 12, 1000 Ljubljana, Slovenia
autor
  • University of Ljubljana, Faculty of Natural Sciences and Engineering, Aškerčeva 12, 1000 Ljubljana, Slovenia
autor
  • University of Ljubljana, Faculty of Natural Sciences and Engineering, Aškerčeva 12, 1000 Ljubljana, Slovenia
autor
  • Institut of Metals and Technology, Lepi Pot 11, 1000 Ljubljana
autor
  • Impol Group, Partizanska 38, 2310 Slovenska Bistrica
  • Impol Group, Partizanska 38, 2310 Slovenska Bistrica
Bibliografia
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Uwagi
EN
1. This work was supported by A Republic of Slovenia, Ministry of Education, Science and Sport and by European Commission, European Regional Development. This work was made in a frame of program Materials and Technologies for New Applications (MARTINA, grand number: C3330-16-529008).
PL
2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-60400ef3-c69a-4ae8-b2d6-68141c84c820
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