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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Grindability of cast Ti-Hf alloys.
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Grindability of cast Ti-Hf alloys.

机译：铸造Ti-Hf合金的可磨性。

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摘要

As part of our systematic studies characterizing the properties of titanium alloys, we investigated the grindability of a series of cast Ti-Hf alloys. Alloy buttons with hafnium concentrations up to 40 mass% were made using an argon-arc melting furnace. Each button was cast into a magnesia-based mold using a dental titanium casting machine; three specimens were made for each metal. Prior to testing, the hardened surface layer was removed. The specimens were ground at five different speeds for 1 min at 0.98 N using a carborundum wheel on an electric dental handpiece. Grindability was evaluated as the volume of metal removed per minute (grinding rate) and the volume ratio of metal removed compared to the wheel material lost (grinding ratio). The data were analyzed using ANOVA. A trend of increasing grindability was found with increasing amounts of hafnium, although there was no statistical difference in the grindability with increasing hafnium contents. We also found that hafnium may be used to harden orstrengthen titanium without deteriorating the grindability.
机译：作为表征钛合金性能的系统研究的一部分，我们研究了一系列铸造Ti-Hf合金的可磨性。使用氩弧熔化炉制造made浓度最高为40质量％的合金纽扣。使用牙科钛铸造机将每个纽扣铸入基于氧化镁的模具中;每种金属制作三个样品。在测试之前，去除硬化的表面层。使用电动牙科手机上的金刚砂轮，以五种不同的速度在0.98 N下将样品研磨1分钟。以每分钟去除的金属量（研磨速率）和去除的金属与砂轮材料损失的体积比（研磨率）来评估可磨性。使用ANOVA分析数据。尽管with含量增加，但可磨性没有统计学差异，但with含量增加却发现可磨性增加。我们还发现ha可用于硬化或强化钛而不会降低可磨性。

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