Casting Aluminum Alloys

Золоторевский, В. С.; Белов, Н. А.; Glazoff, Michael V.

doi:10.1016/b978-0-08-045370-5.x5001-9

Cited by 30 publications

(17 citation statements)

References 6 publications

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“…Al-Mg-based alloys are typical lightweight structural materials and are characterized by non-heat treatable, higher strength and ductility under as-cast condition in comparison with Al-Si-based alloys [1,2]. With the significantly technological progress in recent years in aerospace and automobile industry and the increased requirements in materials recycling for energetic and environmental benefits [3,4], the improvement in mechanical properties of lightweight components is always in great demand.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the turbulence of melt during die-filling process, die castings usually contain too much trapped gas. Heat treatment, especially the solution treatment at a high temperature, would make the impressed trapped gas expand greatly to form surficial blisters and inside big porosities, resulting in poor and scattered mechanical properties [1]. Therefore, the feature of solutionizing at relatively low temperature and the subsequently precipitation process are very important for the thin-wall castings made by high-pressure die casting because much less blisters, residual stress and distortion in components will be possible through lowering the solution temperature.…”

Section: Introductionmentioning

confidence: 99%

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The development of low-temperature heat-treatable high-pressure die-cast Al–Mg–Fe–Mn alloys with Zn

et al. 2021

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In the present work, a novel low-temperature heat-treatable recycled die-cast Al–Mg alloy was developed by adding Zn into non-heat-treatable Al–5Mg–1.5Fe–0.5Mn alloy. The results showed that Zn additions resulted in the formation of equilibrium phase T-Mg32(Al, Zn)49 under as-cast condition, which can be dissolved into the α-Al matrix at a relatively low solution temperature (430 °C) and thus set the base for the low-temperature heat treatment. The mechanical test results indicated that Zn additions had a smooth liner improvement in the strength of all as-cast alloys and T6-state alloys with 1% and 2% Zn as its concentration increased but resulted in a sharp improvement on the strength of T6-state alloy when Zn concentration increased from 2 to 3%. TEM analysis revealed that the precipitate in T6-state Al–5Mg–1.5Fe–0.5Mn–3Zn alloy is η′ phase, rather than the widely reported T″ or T′ phase in other Al–Mg–Zn alloys with approximately same Mg and Zn concentrations. After the optimized low-temperature T6 heat treatment (solution at 430 °C for 60 min and ageing at 120 °C for 16 h), the Al–5Mg–1.5Fe–0.5Mn–3Zn alloy exhibits the yield strength of 321 MPa, ultimate tensile strength of 445 MPa and elongation of 6.2%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The development of low-temperature heat-treatable high-pressure die-cast Al–Mg–Fe–Mn alloys with Zn

et al. 2021

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“…The wide range of demand for aluminum alloys is due to the peculiarities of their physical, mechanical and chemical properties [8]. The creation of new alloys and development of treatment methods for existing ones are based on the results of solving numerous technical problems.…”

Section: Introductionmentioning

confidence: 99%

Analysis of technological approaches to electrochemical surface treatment of aluminum alloys

Karakurkchi

Сахненко

Ved

et al. 2020

EEJET

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strength characteristics, alloying components (manganese, iron, copper, silicon, magnesium, etc.) are introduced into alloys, which form intermetallic compounds in the alloy structure. This causes the surface heterogeneity of alloyed aluminum alloys, significantly reduces corrosion resistance in aggressive media and complicates the surface treatment of such materials [9]. To give additional functional properties to the surface, surface modification methods are used, when predetermined indicators can be achieved without changing the structure of the base material [10]. Such surface engineering technologies are in demand and promising. Application of thin-film coatings for surface protection and strengthening [11, 12], formation of catalytically active layers [13, 14], electrochemical [15] and plasma-chemical treatment are the most common [16]. Variations and combinations of treatment methods

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“…At the same time, coarse-needle eutectics and primary deposition of silicon in the structure of silumins cause embrittlement of the material. This undesirable phenomenon strengthens with an increase in the content of Si in alloy composition [1]. That is why, in order to ensure a high level of mechanical properties, it is required to use additional methods for the surface modification of such materials.…”

Section: Introductionmentioning

confidence: 99%

“…Friction of metals in active liquid media has specific features. Namely, deformation process and destruction of conjugate surfaces affect electrochemical factors significantly [1]. The tribocorrosion covers a science of surface transformations and combines mechanical and chemical interactions between a body, a counter body, interphase medium and medium, which includes friction, greasing, wear and tribological activated chemical and electrochemical reactions [2].…”

Section: Introductionmentioning

confidence: 99%

Study into formation of cobalt-containing peo-coatings on АК12М2МgN from a pyrophosphate electrolyte

Karakurkchi

Сахненко

Ved

et al. 2017

EEJET

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Досліджено формування кобальтовмісних оксидних покривів методом плазмово-електролітичного оксидування силуміну АК12М2МгН у пірофосфатних електролітах. Показано, що варіювання концентрації кобальту сульфату в розчині впливає на робочі параметри ПЕО. Встановлено, що склад та морфологія сформованих оксидних шарів залежать від співвідношення компонентів електроліту. Це дозволяє керувати процесом інкорпорації допанта в матрицю оксиду алюмінія. Обгрунтовано склад пірофосфатного електроліту для одержання оксидних покривів, збагачених каталітичним компонентом Ключові слова: оксидний покрив, силумін, АК12М2МгН, плазмово-електролітичне оксидування, пірофосфатний електроліт, морфологія поверхні Исследовано формирование кобальтосодержащих оксидных покрытий методом плазменно-электролитического оксидирования силумина АК12М2МгН в пирофосфатных электролитах. Показано, что варьирование концентрации кобальта сульфата в растворе влияет на рабочие параметры ПЭО. Установлено, что состав и морфология сформированных оксидных слоев зависят от соотношения компонентов электролита. Это позволяет управлять процессом инкорпорации допанта в матрицу оксида алюминия. Обоснован состав пирофосфатного электролита для получения оксидных покрытий, обогащенных каталитическим компонентом Ключевые слова: оксидное покрытие, силумин, АК12М2МгН, плазменно-электролитическое оксидирование, пирофосфатный электролит, морфология поверхности

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Casting Aluminum Alloys

Cited by 30 publications

References 6 publications

The development of low-temperature heat-treatable high-pressure die-cast Al–Mg–Fe–Mn alloys with Zn

The development of low-temperature heat-treatable high-pressure die-cast Al–Mg–Fe–Mn alloys with Zn

Analysis of technological approaches to electrochemical surface treatment of aluminum alloys

Study into formation of cobalt-containing peo-coatings on АК12М2МgN from a pyrophosphate electrolyte

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