Optimizing the sintering process parameters for simultaneous improvement of the compression strength, impact strength, hardness and corrosion resistance of W–Cu nanocomposite

IF 1.8 4区物理与天体物理 Q3 PHYSICS, APPLIED

Modern Physics Letters B Pub Date : 2024-01-08 DOI:10.1142/s0217984924501690

M. R. Samadi, Ebrahim Zeynali, Fatemeh Allahyari, Ehsan Salahshorrad, Karim Zangeneh-Madar, Mahmoud Afshari

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Abstract

The main purpose of this work is to optimize the mechanical properties of tungsten–copper (W–Cu) nanocomposite fabricated by the sintering process. For this purpose, the parameters of sintering temperature, sintering time and weight percentage of copper were selected to optimize the compression strength, impact strength, hardness and corrosion resistance of the W–Cu nanocomposite using the desirability function procedure and response surface method. The analyses of transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) were also performed to examine the microstructure of W–Cu nanocomposite. The results exhibited that a rise in the sintering temperature from 1000∘C to 1150∘C significantly enhanced the impact strength of W–Cu nanocomposite, while a rise in the sintering temperature from 1150∘C to 1300∘C deteriorated the impact strength. Moreover, the compression strength and hardness of the W–Cu nanocomposite continuously improved by elevation of sintering temperature from 1000∘C to 1300∘C. A rise in the amount of Cu from 20[Formula: see text]wt.% to 40[Formula: see text]wt.% led to a reduction in the hardness of the W–Cu nanocomposite, while a rise of Cu content improved the impact and compression strengths. The results also indicated that the mechanical properties of W–Cu nanocomposite enhanced simultaneously by using 27[Formula: see text]wt.% Cu at sintering temperature of 1197∘C and sintering time of 2.7[Formula: see text]h. The samples sintered at the optimal conditions indicated a higher corrosion resistance than that sintered at the initial conditions.

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优化烧结工艺参数，同时提高 W-Cu 纳米复合材料的压缩强度、冲击强度、硬度和耐腐蚀性能

这项工作的主要目的是优化通过烧结工艺制作的钨-铜（W-Cu）纳米复合材料的机械性能。为此，利用可取函数程序和响应面法，选择烧结温度、烧结时间和铜的重量百分比等参数来优化 W-Cu 纳米复合材料的压缩强度、冲击强度、硬度和耐腐蚀性。此外，还利用透射电子显微镜（TEM）、扫描电子显微镜（SEM）、能量色散 X 射线光谱（EDS）和 X 射线衍射（XRD）分析 W-Cu 纳米复合材料的微观结构。结果表明，烧结温度从 1000∘C升高到 1150∘C，W-Cu 纳米复合材料的冲击强度显著提高；而烧结温度从 1150∘C升高到 1300∘C，冲击强度降低。此外，随着烧结温度从 1000∘C升至 1300∘C，W-Cu 纳米复合材料的压缩强度和硬度不断提高。将铜的含量从 20[式中：见正文]重量%提高到 40[式中：见正文]重量%会导致 W-Cu 纳米复合材料的硬度降低，而铜含量的提高则会改善冲击强度和压缩强度。结果还表明，在烧结温度为 1197∘C、烧结时间为 2.7[式中：见正文]h、Cu 含量为 27[式中：见正文]重量%的条件下，W-Cu 纳米复合材料的机械性能同时得到了提高。在最佳条件下烧结的样品比在初始条件下烧结的样品具有更高的耐腐蚀性。

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

Modern Physics Letters B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

10.50%

发文量

235

审稿时长

5.9 months

期刊介绍： MPLB opens a channel for the fast circulation of important and useful research findings in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low-dimensional materials. The journal also contains a Brief Reviews section with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.