用预合金和混合粉末通过电子束熔化制备自由成形铝化钛

4区材料科学 Q2 Engineering Advances in Materials Science and Engineering Pub Date : 2007-01-01 DOI:10.1155/2007/34737

D. Cormier, O. Harrysson, T. Mahale, H. West

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引用次数: 99

摘要

钛铝化物(TiAl)是一种金属间化合物，具有优异的高温性能，但密度明显低于镍基高温合金。本文介绍了利用电子束熔化(EBM)工艺加工TiAl的初步实验结果。探索了两条加工路线。第一种方法使用预合金粉末，而第二种方法探索控制反应合成。讨论了工艺参数、合金元素的汽化、显微组织和性能等问题。

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Freeform Fabrication of Titanium Aluminide via Electron Beam Melting Using Prealloyed and Blended Powders

Titanium aluminide (TiAl) is an intermetallic compound possessing excellent high-temperature performance while having significantly lower density than nickel-based superalloys. This paper presents preliminary results of experiments aimed at processing TiAl via the electron beam melting (EBM) process. Two processing routes are explored. The first uses prealloyed powder, whereas the second explores controlled reaction synthesis. Issues such as processing parameters, vaporization of alloying elements, microstructure, and properties are discussed.

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来源期刊

Advances in Materials Science and Engineering Materials Science-General Materials Science

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Advances in Materials Science and Engineering is a broad scope journal that publishes articles in all areas of materials science and engineering including, but not limited to: -Chemistry and fundamental properties of matter -Material synthesis, fabrication, manufacture, and processing -Magnetic, electrical, thermal, and optical properties of materials -Strength, durability, and mechanical behaviour of materials -Consideration of materials in structural design, modelling, and engineering -Green and renewable materials, and consideration of materials’ life cycles -Materials in specialist applications (such as medicine, energy, aerospace, and nanotechnology)