提高性能：预加工热处理对摩擦表面 Al-16Si-4Cu 合金快速多回转轧制的影响

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2024-10-30 DOI:10.1016/j.surfcoat.2024.131308

Seyedeh Marjan Bararpour , Hamed Jamshidi Aval , Roohollah Jamaati , Mousa Javidani

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引用次数: 0

摘要

本研究探讨了预处理热处理对铝-16Si-4Cu 合金摩擦堆焊到 AA1050 铝基材上的快速多回转轧制 (FMRR) 的影响。结果表明，在摩擦堆焊和 FMRR 过程之前进行固溶处理可获得最薄的涂层厚度（1.4 ± 0.2 毫米）。此外，使用固溶处理的 Al-16Si-4Cu 合金棒可使 FMRR 处理层中的硅颗粒平均尺寸最小（4.2 ± 0.1 μm）。此外，在 FMRR 和摩擦堆焊之前对合金进行固溶处理，可使 FMRR 处理层中的 AlCu 沉淀分布最均匀、尺寸最小。值得注意的是，在进行 FMRR 和摩擦堆焊之前先进行固溶处理，可在堆焊层中产生最大的纳米硬度（10.42 ± 0.54 GPa）、剪切强度（174.32 ± 9.21 MPa）和弹性模量（221.03 ± 0.54 GPa）。此外，通过固溶热处理进行预处理可使熔覆层的磨损率最低，与 AA1050 基体相比，磨损率降低了 74.47%。

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Enhancing performance: Pre-processing heat treatment's influence on fast multiple rotation rolling of friction-surfaced Al-16Si-4Cu alloy

This study investigated the influence of pre-processing heat treatment on the fast-multiple rotation rolling (FMRR) of Al-16Si-4Cu alloy friction-surfaced onto the AA1050 aluminum substrate. Results showed that applying solid solution treatment before both the friction surfacing and FMRR processes yielded the thinnest coating thickness (1.4 ± 0.2 mm). Moreover, using a solid solution-treated Al-16Si-4Cu alloy rod resulted in the smallest average size of Si particles (4.2 ± 0.1 μm) in the FMRR-treated layer. Additionally, the most uniform distribution and smallest size of Al₂Cu precipitates in the FMRR-treated layer were achieved by subjecting the alloy to solid solution treatment prior to both FMRR and friction surfacing. Notably, solid solution treatment preceding both FMRR and friction surfacing processes produced maximum nano-hardness (10.42 ± 0.54 GPa), shear strength (174.32 ± 9.21 MPa), and elastic modulus (221.03 ± 0.54 GPa) in the clad layer. Furthermore, pre-processing with solid solution heat treatment led to the lowest wear rate of the clad layer, exhibiting a reduction of 74.47 % compared to the AA1050 substrate.

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.