Effect of dendritic or globular (rosette-like) morphology and its parameters on hardness of Al–7.5 wt% Si castings

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Bulletin of Materials Science Pub Date : 2024-06-04 DOI:10.1007/s12034-024-03169-5

Andrey Borisov, Artem Neduzhyi, Leonid Shenevidko

引用次数: 0

Abstract

Effect of dendritic and globular (rosette-like) morphology and its parameters on the hardness of Al–7.5% Si castings has been investigated. It was established that Brinell hardness demonstrates a slight increase with the rise of globules’ size and a slight decrease with the rise in dendrite parameter. In the first case, this is apparently due to isothermal holding in the process of obtaining castings, in the second case, with a decrease in the quenching rate of eutectics due to a decrease in the surface area of the dendrites because of coarsening.

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树枝状或球状（莲座状）形态及其参数对 Al-7.5 wt% Si 铸件硬度的影响

研究了树枝状和球状（莲座状）形态及其参数对 Al-7.5% Si 铸件硬度的影响。结果表明，布氏硬度随着球状体尺寸的增加而略有上升，随着树枝状体参数的增加而略有下降。在第一种情况下，这显然是由于在获得铸件的过程中进行了等温保温；在第二种情况下，由于粗化导致枝晶表面积减少，共晶淬火率也随之降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of Materials Science 工程技术-材料科学：综合

CiteScore

3.40

自引率

5.60%

发文量

209

审稿时长

11.5 months

期刊介绍： The Bulletin of Materials Science is a bi-monthly journal being published by the Indian Academy of Sciences in collaboration with the Materials Research Society of India and the Indian National Science Academy. The journal publishes original research articles, review articles and rapid communications in all areas of materials science. The journal also publishes from time to time important Conference Symposia/ Proceedings which are of interest to materials scientists. It has an International Advisory Editorial Board and an Editorial Committee. The Bulletin accords high importance to the quality of articles published and to keep at a minimum the processing time of papers submitted for publication.

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