激光烧结热处理 Ti-6A1-4V 合金的固体颗粒侵蚀行为

IF 0.9 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Russian Journal of Nondestructive Testing Pub Date : 2024-08-23 DOI:10.1134/S1061830924601533
Amit Kumar Singh Chauhan, Mukul Shukla, Abhishek Kumar
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引用次数: 0

摘要

摘要 钛-6Al-4V 合金用于高温航空航天领域,如飞机涡轮盘、机身和其他结构部件。固体颗粒侵蚀在航空航天部件中十分常见。在本研究中,我们研究了固体颗粒侵蚀对通过直接金属激光烧结制造的 Ti-6Al-4V 合金的影响。使用光学显微镜和扫描电子显微镜对制造的样品进行了表征。结果表明,由于热处理温度远低于 β 反式值,因此保留了长马氏体相结构(以 α/α' 板条的形式存在)。采用田口试验方法,对不同的冲击角度、速度和温度进行了 SPE 试验。这种方法优化了测量侵蚀速率的实验次数,并预测了试验中影响最大的变量。此外,还利用扫描电子显微镜技术对侵蚀样品进行了表征。影响 Ti-6Al-4V 合金侵蚀行为的主要因素是冲击速度,其次是温度和冲击角度。在最高温度 650 K 时,侵蚀率随冲击角的增加而降低,随冲击速度的增加而升高。本研究旨在确定最佳参数组合,以最大限度地降低侵蚀率。
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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Solid Particle Erosion Behaviour of Laser Sintered Heat Treated Ti–6Al–4V Alloy

Ti–6Al–4V alloy is used in high-temperature aerospace applications such as aircraft turbine discs, airframes, and other structural parts. Solid particle erosion is quite common in aerospace components. In the present work, a study has been conducted to see the effect of solid particle erosion on Ti–6Al–4V alloy fabricated by direct metal laser sintering. The fabricated sample was characterized using optical microscopy and scanning electron microscopy. It was observed that a long martensitic phase structure (in the form of α/α' laths) was retained since the heat treatment temperature was far below the β transus value. Using the Taguchi experimental approach, the SPE tests were conducted for different impact angles, velocities, and temperatures. This approach optimized the number of experiments for measuring the erosion rate and predicted the most influencing variable in the test. The scanning electron microscopy technique was also used to characterize the eroded sample. The effect of impact velocity dominated the erosion behaviour of Ti–6Al–4V alloy, followed by temperature and impact angle. At highest temperature of 650 K, erosion rate decreased with an increase in impact angle and increased with an increase in impact velocity. This study aims to identify the optimal parameter combination to minimize the erosion rate.

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来源期刊
Russian Journal of Nondestructive Testing
Russian Journal of Nondestructive Testing 工程技术-材料科学:表征与测试
CiteScore
1.60
自引率
44.40%
发文量
59
审稿时长
6-12 weeks
期刊介绍: Russian Journal of Nondestructive Testing, a translation of Defectoskopiya, is a publication of the Russian Academy of Sciences. This publication offers current Russian research on the theory and technology of nondestructive testing of materials and components. It describes laboratory and industrial investigations of devices and instrumentation and provides reviews of new equipment developed for series manufacture. Articles cover all physical methods of nondestructive testing, including magnetic and electrical; ultrasonic; X-ray and Y-ray; capillary; liquid (color luminescence), and radio (for materials of low conductivity).
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