Grain Refiner Effect on the Microstructure and Mechanical Properties of the A356 Automotive Wheels

Torre, E. Aguirre-De la; Afeltra, U.; Gómez-Esparza, C.D.; Camarillo-Cisneros, J.; Pérez-Bustamante, R.; Martínez-Sánchez, R.

doi:10.1007/s11665-013-0596-x

Cited by 14 publications

(7 citation statements)

References 10 publications

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“…In terms of the properties, Al alloys are characterized by high specific strength and low specific weight compared with conventional ferrous material, wide adaptability of heat treatment, and superior processability for casting, forging, welding, and machining [1][2][3]. Up to now, they have been widely employed as structural components in the fields of spacecraft, aircraft, automotive, and 3C products [4][5][6]. However, Al and its alloys are susceptible to be corroded both in the acidic and the alkaline environments, which is also a fatal shortcoming for its natural oxide film.…”

Section: Introductionmentioning

confidence: 99%

Wear and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy in Electrolytes with Aluminate and Phosphate

Peng

Liu

et al. 2021

Materials

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Phosphate and aluminate electrolytes were used to prepare plasma electrolytic oxidation (PEO) coatings on 6061 aluminum alloy. The surface and cross-section microstructure, element distribution, and phase composition of the PEO coatings were characterized by SEM, EDS, XPS, and XRD. The friction and wear properties were evaluated by pin-on-disk sliding tests under dry conditions. The corrosion resistance of PEO coatings was investigated by electrochemical corrosion and salt spray tests in acidic environments. It was found that the PEO coatings prepared from both phosphate and aluminate electrolytes were mainly composed of α-Al2O3 and γ-Al2O3. The results demonstrate that a bi-layer coating is formed in the phosphate electrolyte, and a single-layered dense alumina coating with a hardness of 1300 HV is realizable in the aluminate electrolyte. The aluminate PEO coating had a lower wear rate than the phosphate PEO coating. However, the phosphate PEO coating showed a better corrosion resistance in acidic environment, which is mainly attributed to the presence of an amorphous P element at the substrate/coating interface.

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Section: Introductionmentioning

confidence: 99%

Wear and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy in Electrolytes with Aluminate and Phosphate

Peng

Liu

et al. 2021

Materials

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“…Лантаноиды, входящие в группу РЗМ, в последнее время применяются как потенциальные модификаторы для улучшения эксплуатационных свойств силуминов (как эвтектического, так и заэвтектического состава) в целом ряде работ. Были проведены исследования структуры и свойств силуминов, модифицированных европием (Eu) [25,62,63], эрбием (Er) [6,[64][65][66], лантаном (La) [9,67], церием (Ce) [68] и их комбинацией, La/Ce [69][70][71][72][73][74], иттербием (Yb) [75][76][77][78], иттрием (Y) [79][80][81] и рядом других редкоземельных лантаноидов [82][83][84][85].…”

Section: редкоземельные элементы как модификаторы силуминаunclassified

Section: Uts N/mmunclassified

“…При введении в состав коммерческих сплавов А357 [69], А356 [70,71], A413 [74] и в состав сплава Al−8% Si [68] лантан и церий меняют форму кремния в эвтектике c грубой пластинчатой на частично волокнистую. В результате механических испытаний, проведенных в [70,71] образцов сплава А356, модифицированных комплексом La/Ce (0.2%) [70] или La (1.0%) [71], обнаружен только рост величины удлинения до разрушения примерно в 1.5 раза и небольшой рост, на 15%, величин твердости и предела прочности после отжига на старение (Т6). В работе [69] в промышленном доэвтектическом сплаве А357 (Si -6.75%, Mg -0.63%, Ti -0.14%, остальное Al), модифицированном комплексом La/Ce (0.2%), наблюдали уменьшение размеров первичных дендритов α-алюминия и кристаллов кремния из-за образования дисперсных частиц интерметаллидов Al(La/Ce), сдерживающих рост компонент.…”

Section: Uts N/mmunclassified

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Влияние модифицирующих элементов на структуру и механические свойства литейных Al-Si-сплавов

Осипов¹

2022

Журнал Технической Физики

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The state of scientific research on the modification of aluminum-silicon (Al-Si) alloy with strontium, sodium, phosphorus, which are widely employed in industrial alloys, and the modification of Al-Si alloy with intensively studied rare-earth elements (cerium, europium, samarium and others) was analyzed. Scientific articles related to the study of the effect of modifiers on the mechanical properties, mainly on the strength and ductility of hypoeutectic, eutectic and hypereutectic alloys was considered. On the basis of a literary data analysis, ways of improving the mechanical properties have been proposed by jointly modifying several elements, the possibility of forming the solely eutectic structure in the hypereutectic composition alloy 0.01 wt% strontium (Sr) modified and directionally crystallized at a rate that provides paired growth of the eutectic components is noted. This composition of Al-Si alloy has superfine-grained eutectic structure, its strength and ductility exceed the mechanical properties of Al-Si alloys obtained by other techniques.

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“…AleSi die casting alloys own some prominent properties, such as excellent castability, low thermal expansion coefficient, etc., they are now widely used in the manufacturing industry [1]. Some of their products, especially electronic devices, need surface coloring treatment for decoration demands.…”

Section: Introductionmentioning

confidence: 99%

Preparation of black PEO layers on Al–Si alloy and the colorizing analysis

Kang¹,

Li²,

Zhang³

et al. 2015

Vacuum

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Grain Refiner Effect on the Microstructure and Mechanical Properties of the A356 Automotive Wheels

Cited by 14 publications

References 10 publications

Wear and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy in Electrolytes with Aluminate and Phosphate

Wear and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy in Electrolytes with Aluminate and Phosphate

Влияние модифицирующих элементов на структуру и механические свойства литейных Al-Si-сплавов

Preparation of black PEO layers on Al–Si alloy and the colorizing analysis

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