Need of an Inert Atmosphere for High-Energy Ball Milling of Al Alloys

Need of an Inert Atmosphere for High-Energy Ball Milling of Al Alloys
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铝合金高能球磨需要惰性气氛

DOI:
10.1007/s11665-022-07309-y
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发表时间:
2022
影响因子:
2.3
通讯作者:
Gupta, R. K.
Gupta, R. K.
中科院分区:
材料科学4区
文献类型:
--
作者:
Ozdemir, F.;Christudasjustus, J.;Vukkum, V. B.;Okuyucu, H.;Gupta, R. K.

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比较了空气和高纯氩气中高能球磨制备的铝合金(AA2024)的腐蚀行为和硬度。将预合金的AA2024粉末在氩气和空气中进行球磨,并成功地对制备的粉末进行固结,研究其硬度和腐蚀性能。循环动电位极化试验表明,在空气中铣削的合金具有较高的点蚀电位。此外,在空气中铣削后,在400和500°C下进行1小时等温热处理后,硬度和热稳定性更高。我们的研究结果表明,并不是所有应用都需要高纯度的氩气,在空气中研磨可以获得优异的性能。
This article compares the corrosion behavior and hardness of an Al alloy (AA2024) produced by high-energy ball milling in air and high-purity Ar. The pre-alloyed AA2024 powder was milled in Ar and air atmospheres, and the produced powder was successfully consolidated to investigate the hardness and corrosion performance. Cyclic potentiodynamic polarization tests revealed higher pitting potential for the alloy milled in air. Additionally, milling in air resulted in higher hardness and thermal stability after a 1-h isothermal heat treatment at 400 and 500 °C. Our results demonstrate that a high-purity Ar atmosphere is not a requirement for all applications and milling in the air can lead to excellent properties.
通过低温研磨和随后在不同温度下固结生产的 Al-5 At. Pct Cr 的腐蚀和机械性能
DOI: --
发表时间: 2018
期刊: Metallurgical and Materials Transactions. A
影响因子: --
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发表时间: 2021-03
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影响因子: 3
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