Bonding of Interface Bimetal Aluminum-Bronze for Bimetal Bushing Produced by Solid Liquid Method

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-06-22 DOI:10.36547/ams.28.2.1253

L. Setyana, N. Santoso, Bambang Suharnadi, Benidiktus Tulung Prayoga, Wiyadi Wiyadi

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Abstract

Bimetal is a combination of two dissimilar metals that form a metallurgical bond. The manufacture of bimetallic bushing by centrifugal casting has not been widely developed. There is still no recommendation for optimum temperature used in the manufacture. The aim of this research was to determine the first frozen layer temperature of the aluminum when bronze was poured to produce a well-integrated bond interface. The materials used were aluminum and bronze. Molten metal was pouring into the mold alternately. First, aluminum was poured into the mold. Then, bronze was poured gradually to form a bushing aluminum-bronze bimetallic. The temperature variations of the first frozen layer of aluminum were 27º C, 350º C, 400º C, and 450º C when bronze poured. The molten metal was poured with the filling speed of about 0.2 kg/s into a rotating sand mold. The rotational speed of the mold was 350 rpm. The result shows that the bond interface’s width increases as the first frozen layer aluminum temperature increases. As a result, interface wear and hardness are increased compared to the base metal. Hence, centrifugal casting with the first frozen layer aluminum was 450ºC recommended for aluminum-bronze bimetal bushing applications.

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固液法双金属衬套双金属铝青铜界面的粘接

双金属是两种不同金属的结合，形成冶金结合。用离心铸造的方法制造双金属套管还没有得到广泛的发展。对于制造中使用的最佳温度仍然没有建议。本研究的目的是确定浇注青铜以产生良好集成的粘结界面时铝的第一个冻结层温度。使用的材料是铝和青铜。熔化的金属交替地倒入模具中。首先，将铝倒入模具中。然后，逐渐浇注青铜以形成衬套铝青铜双金属。浇注青铜时，第一层铝冻结层的温度变化为27ºC、350ºC、400ºC和450ºC。将熔融金属以约0.2kg/s的填充速度倒入旋转砂模中。模具的旋转速度为350rpm。结果表明，随着第一凝固层铝温度的升高，界面宽度增大。结果，与基底金属相比，界面磨损和硬度增加。因此，对于铝青铜双金属套管应用，建议使用450ºC的第一个凝固层铝离心铸造。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.