Microstructure and mechanical properties modification through in-situ heat treatment of AlSi10Mg/CNTs Composites prepared through additive manufacturing

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-05-31 DOI:10.1016/j.matlet.2025.138863

Bishnu Nand yadav , Dilip Muchhala , Jitendar Kumar Tiwari , Pei-Chen Huang , De-Shin Liu , Pai Chen Lin

引用次数: 0

Abstract

Current study investigates the microstructure and mechanical properties of additively manufactured AlSi10Mg/CNTs composites using in-situ heat treatment and annealing. In this work, different weight percentages (wt. %) of CNTs (0 wt. %, 0.2 wt. %, and 0.4 wt. %) were mixed with the AlSi10Mg alloy powder. The powder mixture was then processed using laser powder bed fusion process by implementing bi-directional scanning strategy with single scan (SS) and double scan (DS, also called as in-situ heat treated). The printed samples were further annealed at 350°C and 500°C for 1 hour. The results indicate that strength and ductility increase in DS samples significantly compared to those of SS samples.

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通过原位热处理改性增材制造制备的AlSi10Mg/CNTs复合材料的组织和力学性能

本研究采用原位热处理和退火的方法对增材制造的AlSi10Mg/CNTs复合材料的显微组织和力学性能进行了研究。在这项工作中，将不同重量百分比（wt. %）的CNTs （0 wt. %、0.2 wt. %和0.4 wt. %）与AlSi10Mg合金粉末混合。然后采用激光粉末床熔合工艺，采用单扫描（SS）和双扫描（DS，也称为原位热处理）双向扫描策略对粉末混合物进行加工。将打印出来的样品分别在350℃和500℃退火1小时。结果表明，与SS相比，DS试样的强度和塑性显著提高。

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

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive