Effect of Al-5Ti-0.25C-0.25B and Al-5Ti-1B Master Alloys on the Microstructure and Mechanical Properties of Al-9.5Si-1.5Cu-0.8Mn-0.6Mg Alloy

Wen, Yihan; Wu, Yuying; Wu, Yongjie; Gao, Tong; Wei, Zuoshan; Liu, Xiangfa

doi:10.3390/ma16031246

Cited by 4 publications

(6 citation statements)

References 21 publications

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“…Tane sınırları dislokasyon hareketini sınırladığı için daha fazla tane sınırı içeren alaşımın mukavemetinin ve sertliğinin daha yüksek olacağı anlamına gelmektedir. Hall-Petch bağıntısı da malzemelerin tane inceliği ile mukavemetleri arasındaki ilişkiyi açıklamaktadır [21], [22]. Al-5Ti-0,2B ve Al-5Ti-1B alaşımları arasındaki temel fark borun (B) varlığında yatmaktadır.…”

Section: Bulgular Ve Tartışmalarunclassified

Al-5Ti-0,2B ve Al-5Ti-1B Tane İncelticilerin AA 1050 Alüminyum Alaşımının Mekanik Özellikleri Üzerine Etkileri

YUNAK,

DURU,

SEVİNÇ

et al. 2023

Open Journal of Nano

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Öz – Bu kapsamlı çalışma, tane incelticilerin alüminyum alaşımlarının üzerindeki etkisini araştırmakta ve hem alaşım geliştirme hem de çeşitli endüstriyel uygulamalar için önemli çıkarımlar ortaya koymaktadır. Araştırmada, alüminyum levhalar üretmede hassasiyeti ve verimliliği ile tanınan ikiz merdaneli döküm metodundan yararlanılmıştır. İncelenen alaşımların kimyasal bileşiminin kesin olarak anlaşılması için spektrometrik analiz kullanılmıştır. Araştırma daha sonra Al-5Ti-0,2B ve Al-5Ti-1B olan iki farklı tane incelticili 1050 alüminyum alaşımının mikroyapı ve mekanik incelemesine girmektedir. Bu alaşımlar gelişmiş optik mikroskop ve SEM altında incelenmiş ve mekanik özelliklerinin bütünsel bir değerlendirmesini sağlamak için de sertlik analizi yapılmıştır. Sonuçlar, Al-5Ti-1B alaşımında daha fazla bulunan borun belirgin etkisini ortaya çıkarmıştır. Bu alaşımı SEM analizinde incelediğimizde intermetalik yapıların azaldığını ve daha homojen bir yapının ortaya çıktığı net bir şekilde görülmüştür. Bunun ile birlikte optik mikroskop görüntülerinde tane boyutlarının küçüldüğü ve daha tanecikli bir yapı oluşmasına sebebiyet vermesinin yanında akma, çekme ve sertlik değerinin artması Al-5Ti-1B alaşımının mikroyapı ve mekanik özelliklerindeki iyileşmelerin net bir göstergesi haline gelmiştir. Mikroyapıda elde edilen bu gelişmeler ile özellikle ikiz merdane döküm tekniği ile üretilen malzemelerde eloksallama yüzey işleminin uygulanabilirliğini ortaya koymuştur.

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Section: Bulgular Ve Tartışmalarunclassified

Al-5Ti-0,2B ve Al-5Ti-1B Tane İncelticilerin AA 1050 Alüminyum Alaşımının Mekanik Özellikleri Üzerine Etkileri

YUNAK,

DURU,

SEVİNÇ

et al. 2023

Open Journal of Nano

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“…Works have been found in the literature describing the influence of master alloys containing aluminum, titanium and boron on the microstructure and properties of hypoeutectic silumins [58,59]. Some authors have conducted research with different proportions of titanium and boron in the master alloy [59][60][61][62].…”

Section: Introductionmentioning

confidence: 99%

“…In many studies, the authors modify hypoeutectic silumin by introducing titanium and boron into the liquid alloy in the form of a powder or rod. There are works presenting the results of silumin modification using the available industrial alloy, AlTi5B1 [58]. There are works in which the authors define the titanium-to-boron ratio of 5:1 as optimal [63,64].…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Proportions of Titanium and Boron in the Al and AlSi7-Based Master Alloy on the Microstructure and Mechanical Properties of Hypoeutectic Silumin, AlSi7Mg

Lipiński

2023

Applied Sciences

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Unmodified hypoeutectic silumins have a microstructure composed of large-sized phases, which are the reason for their low mechanical properties. Many years of research have shown the modifying effects of many chemical elements and their compounds, including the master alloy consisting of Al-Ti-B, often in the form of the finished AlTi5B alloy. In this work, it was decided to check how the proportions of Ti and B content in the Al or AlSi-based master alloy affect the microstructure and mechanical properties of a hypoeutectic silumin, AlSi7Mg. It has been shown that a master alloy containing silicon (with the participation of Al + Ti + B) has a more effective impact on the refinement of the microstructure, and thus an increase in the mechanical properties of the AlSi7Mg alloy, than a master alloy without silicon. It has been shown that the ratio of titanium to boron content in the very-often-used AlTi5B modifier is not always optimal. It has been shown that the use of a master alloy with a composition similar to that of modified silumin with titanium and boron in a 2:1 ratio allows the obtaining of an AlSi7Mg alloy with higher mechanical properties than the alloy after the modification of the AlTi5 master alloy.

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“…Both modifiers cause porosity in alloys when casting into sand molds. There are a number of papers that describe the effect of modification after adding various modifiers, including Sr [33][34][35][36], Na [2,37,38]; Ti and B [39][40][41][42][43][44][45][46]; Li [47]; Ba, Ca, and Y [48,49]; Sc [50]; Y [51]; Sb [52]; and others. For grain refinement in Al casting alloys, alloys based on titanium and boron can be used.…”

Section: Introductionmentioning

confidence: 99%

Effect of Modifier Form on Mechanical Properties of Hypoeutectic Silumin

Lipiński

2023

Materials

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Aluminum–silicon alloys require modification due to their coarse-grained microstructures and resulting low strength properties. So far, research into the modification process has focused on the use of various chemical components and technological processes, the tasks of which are to refine the microstructure and, thus, increase the mechanical properties of the alloy. In this paper, the answer to the question of whether the form of the modifier influences the modification effect of the hypoeutectic silumin will be found. The tests were carried out using the popular silumin AlSi7Mg. To answer our research question, the alloy was modified under comparable conditions using the following elements: Ti, B, and master alloys AlTi1.5 and AlB1.5. Modifiers in the form of Sr and master alloy AlSr1.5 were also used. All mentioned modifiers were produced and introduced into the liquid alloy in the form of a powder and a rod. Master alloys AlSr1.5 were also produced via cooling from the liquid state through cooling in air and the second variant at a speed of 200 °C/s (in the form of powder and a thin strip). The microstructure and mechanical properties were analyzed based on the following measures: tensile strength, elongation, and hardness of silumin. Based on the conducted research, it was found that the form of the modifier also affects the modification effect visible in the form of changes in the microstructure and mechanical properties. For the powder-modified alloy, greater fineness in the eutectic phase (α and B phases) and an increase in all analyzed mechanical properties were obtained.

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Effect of Al-5Ti-0.25C-0.25B and Al-5Ti-1B Master Alloys on the Microstructure and Mechanical Properties of Al-9.5Si-1.5Cu-0.8Mn-0.6Mg Alloy

Cited by 4 publications

References 21 publications

Al-5Ti-0,2B ve Al-5Ti-1B Tane İncelticilerin AA 1050 Alüminyum Alaşımının Mekanik Özellikleri Üzerine Etkileri

Al-5Ti-0,2B ve Al-5Ti-1B Tane İncelticilerin AA 1050 Alüminyum Alaşımının Mekanik Özellikleri Üzerine Etkileri

The Influence of the Proportions of Titanium and Boron in the Al and AlSi7-Based Master Alloy on the Microstructure and Mechanical Properties of Hypoeutectic Silumin, AlSi7Mg

Effect of Modifier Form on Mechanical Properties of Hypoeutectic Silumin

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