摩擦搅拌加工:用于汽车轻量化的高压压铸铝合金的热机械加工工具

IF 1.9 Q3 ENGINEERING, MANUFACTURING
Avik Samanta , Hrishikesh Das , Glenn J. Grant , Saumyadeep Jana
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引用次数: 0

摘要

本研究采用摩擦搅拌加工(FSP)对高压压铸(HPDC)进行热机械加工,以改变微观结构并提高机械性能。FSP 在两种不同的 HPDC 铝合金上进行:(a) 通用、高铁 HPDC A380 合金;(b) 优质、低铁 HPDC Aural-5 薄壁平板合金。随后的机械测试表明,屈服强度和拉伸延展性分别提高了 30% 和 65%。此外,FSP 还使 A380 合金的疲劳寿命提高了 ∼ 10 倍,Aural-5 合金的断裂韧性提高了 ∼ 70%。这些发现强调了 FSP 对基于 HPDC 铝合金的结构组件的微观结构进行改性的能力,从而使其能够很好地结合强度、延展性、断裂韧性和高疲劳性能,以获得长期的耐用性和可靠性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Friction stir processing: A thermomechanical processing tool for high pressure die cast Al-alloys for vehicle light-weighting
This study uses friction stir processing (FSP) for thermomechanical processing of high-pressure die-casting (HPDC) to modify microstructure and improve mechanical properties. FSP is carried out on two different HPDC aluminum alloys: (a) general-purpose, high-iron, HPDC A380 alloy and (b) premium quality, low-iron HPDC Aural-5 alloy in thin wall, flat plate geometry. Subsequent mechanical testing shows ∼30 % and ∼65 % enhancement in yield strength and tensile ductility. In addition, FSP leads to ∼10 times improvement in fatigue life for A380 alloy and ∼70 % improvement in fracture toughness for Aural-5 alloy. These findings emphasize the capability of FSP to modify the microstructure of HPDC Al-alloys-based structural components so that they can demonstrate a good combination of strength, ductility, fracture toughness, and high fatigue properties for long-term durability and reliability.
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来源期刊
Manufacturing Letters
Manufacturing Letters Engineering-Industrial and Manufacturing Engineering
CiteScore
4.20
自引率
5.10%
发文量
192
审稿时长
60 days
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