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<p>Main aim of this study is to examine change of microstructural and the mechanical properties of Al-7075 alloy depending on B content added with different proportions. Rapid solidification process used to produce the alloys was carried out with a single roll melt spinner via a wheel with a rotational speed of 25 m/s. For the microstructural characterization of the alloys, a scanning electron microscope and X-ray diffraction analyzes were used. According to obtained results, it can be said that B addition led to modification of dimensions and shapes of both α−Al and intermetallic phases occurred, it reduced average grain size from 0.45 μm to 0.34 μm in the microstructure. The B addition also led to dramatically increase in microhardness of the Al-7075 alloy. The microhardness of the alloy with 0.4 wt. % B is 0.19 GPa, this is clearly one times higher than that of the alloy without B addition. The microhardness of the alloy with 1 wt. % B is 0.21 GPa, this is also slightly higher than that of the alloy with 0.4 wt. % B.</p>
</abstract>

Main aim of this study is to examine change of microstructural and the mechanical properties of Al-7075 alloy depending on B content added with different proportions. Rapid solidification process used to produce the alloys was carried out with a single roll melt spinner via a wheel with a rotational speed of 25 m/s. For the microstructural characterization of the alloys, a scanning electron microscope and X-ray diffraction analyzes were used. According to obtained results, it can be said that B addition led to modification of dimensions and shapes of both α−Al and intermetallic phases occurred, it reduced average grain size from 0.45 μm to 0.34 μm in the microstructure. The B addition also led to dramatically increase in microhardness of the Al-7075 alloy. The microhardness of the alloy with 0.4 wt. % B is 0.19 GPa, this is clearly one times higher than that of the alloy without B addition. The microhardness of the alloy with 1 wt. % B is 0.21 GPa, this is also slightly higher than that of the alloy with 0.4 wt. % B.

Effects of B Addition on the Microstructure and Microhardness of Melt-Spun Al-7075 Alloy

Department of Fundamental Sciences and Engineering

Sivas University of Science and Technology

Department of Materials Science and Engineering

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Main aim of this study is to examine change of microstructural and the mechanical properties of Al-7075 alloy depending on B content added with different...

Effects of B Addition on the Microstructure and Microhardness of Melt-Spun Al-7075 Alloy

Publié en ligne: 12 juil. 2022

Pages: 5 - 18

DOI: https://doi.org/10.2478/adms-2022-0004

Mots clés
Al-7075, B addition, microhardness, microstructure, rapid solidification

© 2022 Muhammed Fatih Kilicaslan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effects of B Addition on the Microstructure and Microhardness of Melt-Spun Al-7075 Alloy

Publié en ligne: 12 juil. 2022

Pages: 5 - 18

DOI: https://doi.org/10.2478/adms-2022-0004

Mots clésAl-7075, B addition, microhardness, microstructure, rapid solidification

© 2022 Muhammed Fatih Kilicaslan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Al-7075, B addition, microhardness, microstructure, rapid solidification