Unified empirical relations for cavitation and liquid impingement erosion processes
Unified empirical relations for cavitation and liquid impingement erosion processes
复制标题
空化和液体冲击侵蚀过程的统一经验关系
DOI：
10.1016/0043-1648(87)90022-6
复制
发表时间：
1987
期刊：
影响因子：
5
通讯作者：
D. Buckley
中科院分区：
文献类型：
--
作者：
P. Rao;D. Buckley
在过去，已经进行了几次尝试来预测由于空化和液体冲击引起的侵蚀。大多数模型和公式都有某些缺陷，因此不能充分预测侵蚀的程度，特别是在加速期和长期接触期间。本报告提出了一个幂律之间的关系平均侵蚀速率和累积侵蚀在加速和减速区的腐蚀铜，黄铜和不锈钢试样在旋转盘设备检查。对文氏管、磁致伸缩和液体射流冲击等其它类型冲蚀装置的数据分析，均符合本统一关系式。这种一致性表明加速区和减速区的侵蚀性质相似。试图理解幂律关系中的系数与材料性质之间的关系。
Several attempts have been made in the past to predict erosion due to cavitation and liquid impingement. Most of the models and formulations suffer certain deficiencies so that they do not adequately predict the magnitude of erosion, particularly during the acceleration period and for long-term exposure. This report presents a power-law relationship between average erosion rate and cumulative erosion during the acceleration and deceleration zones of erosion for copper, brass and stainless steel specimens examined in a rotating disk device. Data analyses from other types of erosion devices, including venturi, magnetostriction and liquid jet impingement, conform to the present unified relation. This agreement is indicative of the similar nature of erosion in the acceleration and deceleration zones. Attempts are made to understand the relationship between the coefficients in the power-law relation and the material properties.