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首页> 美国卫生研究院文献>Materials >Effect of Nickel and Titanium on Properties of Fe-Al-Si Alloy Prepared by Mechanical Alloying and Spark Plasma Sintering
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Effect of Nickel and Titanium on Properties of Fe-Al-Si Alloy Prepared by Mechanical Alloying and Spark Plasma Sintering

机译：镍和钛对机械合金化和等离子烧结制备的Fe-Al-Si合金性能的影响

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摘要

This paper describes the structure and properties of an innovative Fe-Al-Si alloy with a reduced amount of silicon (5 wt. %) in order to avoid excessive brittleness. The alloy was produced by a combination of mechanical alloying and spark plasma sintering. Nickel and titanium were independently tested as the alloying elements for this alloy. It was found that wear resistance, which reached values comparable with tool steels, could be further improved by the addition of nickel. Nickel also improved the high-temperature oxidation behavior, because it lowers the liability of the oxide layers to spallation. Both nickel and titanium increased the hardness of the alloy. Titanium negatively influenced oxidation behavior and wear resistance because of the presence of titanium dioxide in the oxide layer and the brittle silicides that caused chipping wear, respectively.
机译：本文介绍了一种创新的Fe-Al-Si合金，其硅含量减少了（5 wt。％），以避免过大的脆性。该合金是通过机械合金化和火花等离子体烧结的组合来生产的。镍和钛作为该合金的合金元素被独立测试。已经发现，通过添加镍可以进一步提高达到与工具钢相当的耐磨性的值。镍还改善了高温氧化性能，因为它降低了氧化物层剥落的可能性。镍和钛都增加了合金的硬度。钛对氧化行为和耐磨性有负面影响，这是因为分别存在于氧化层中的二氧化钛和造成碎屑磨损的脆性硅化物。

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