Effect of Loading Rate Upon Conventional Ceramic Microindentation Hardness.
Effect of Loading Rate Upon Conventional Ceramic Microindentation Hardness.
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DOI：
10.6028/jres.107.023
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发表时间：
2002-05
影响因子：
1.5
通讯作者：
Lloyd I
中科院分区：
文献类型：
--
作者：
Quinn GD;Patel PJ;Lloyd I
传统陶瓷硬度的世界标准对压痕循环期间的加载速率控制有不同的要求。文献综述表明，在某些情况下，加载速率可能会影响测得的硬度。鉴于在这个问题上的不确定性，在一个范围内的压痕加载速率进行了新的实验上的钢，烧结碳化硅，和氮氧化铝。当加载速率从约0.03 N/s到10 N/s变化近四个数量级时，对维氏硬度的影响可以忽略不计。
The world standards for conventional ceramic hardness have varying requirements for control of loading rate during the indentation cycle. A literature review suggests that loading rate may affect measured hardness in some instances. In view of the uncertainty over this issue, new experiments over a range of indentation loading rates were performed on a steel, sintered silicon carbide, and an aluminum oxynitride. There was negligible effect upon Vickers hardness when loading rate was varied by almost four orders of magnitude from approximately 0.03 N/s to 10 N/s.