Microstructure, wear and residual stresses of selective laser melting AlSi10Mg solid cylinder

IF 2.3 4区工程技术 Q2 ENGINEERING, MECHANICAL

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering Pub Date : 2024-08-26 DOI:10.1177/09544089241272825

Harinadh Vemanaboina, Ankammarao Padamurthy, Praveen Kumar Gandla, Lakshman Rao Muppa, Koyyagura Lakshmi Kala

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Abstract

Advanced industrial processing technique selective laser melting (SLM) can handle various materials. Although titanium alloys are the main material used in SLM, aluminium alloys may be employed in the future. However, producing aluminium alloys is more complicated. This work uses SLM to make an AlSi10Mg solid cylinder. The aim is to study the mechanical properties and microstructure of products. Layer thickness increases defects; thus, research advises avoiding it. The optical microscope study proved the conduction melting process's stability and hole-freeness. EDX mapping and SEM were used to compare the chemical makeup of as-cast and SLM materials. An unusual microstructure showed consistent alloying component distribution. Investigations examine wear, hardness and residual stresses. Extreme hardness was found. The component has evenly distributed compressive residual stresses within material yield limits.

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选择性激光熔化 AlSi10Mg 实体圆柱体的微观结构、磨损和残余应力

先进的工业加工技术选择性激光熔融（SLM）可以加工各种材料。虽然钛合金是 SLM 的主要材料，但未来也可能使用铝合金。然而，铝合金的生产较为复杂。本研究利用 SLM 制作 AlSi10Mg 固体圆柱体。目的是研究产品的机械性能和微观结构。层厚会增加缺陷，因此研究建议避免层厚。光学显微镜研究证明了传导熔化过程的稳定性和无孔性。EDX 图谱和扫描电镜用于比较铸造材料和 SLM 材料的化学构成。不寻常的微观结构显示合金成分分布一致。对磨损、硬度和残余应力进行了调查。发现了极高的硬度。部件具有均匀分布的压缩残余应力，在材料屈服极限范围内。

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

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 工程技术-工程：机械

CiteScore

3.80

自引率

16.70%

发文量

370

审稿时长

6 months

期刊介绍： The Journal of Process Mechanical Engineering publishes high-quality, peer-reviewed papers covering a broad area of mechanical engineering activities associated with the design and operation of process equipment.

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