Experimental investigation of the onset of sand deposits on Hastelloy-X between 1,000 degrees C and 1,100 degrees C

Boulanger A.; Hutchinson J.; Ng W. F.; Ekkad S. V.; Keefe M. J.; Xu W.; Barker B.; Hsu K.

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Experimental investigation of the onset of sand deposits on Hastelloy-X between 1,000 degrees C and 1,100 degrees C

机译：在1000摄氏度至1100摄氏度之间Hastelloy-X上的沙沉积开始的实验研究

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Deposit formation on turbine hardware in propulsion turbine engines can occur in many arid regions globally. Characterising crystalline deposits on metallic substrates can aid in component resilience and health monitor algorithms during particle ingestion. This study has developed two statistical empirical models for prediction from acquired experimental data for the onset of deposits. The prediction models are for crystalline particulate (Arizona Road Test Dust) deposits on a flat rectangular Hastelloy-X test coupon. Particle impingement angles varied between 20 degrees and 80 degrees in experimental flow temperatures of 1,000-1,100 degrees C. Averaged deposits are methodically quantified through normalised particle deposit tallies per area and percent coverage of the surface using microscopic imaging and image processing programs. Deposit accumulation is a quadratic function of both near-surface coupon temperature and coupon angle.

机译：推进涡轮发动机中涡轮硬件上的沉积物形成可能在全球许多干旱地区发生。表征金属基材上的结晶沉积物可有助于颗粒摄入过程中的组件弹性和健康监测算法。这项研究已经开发了两个统计经验模型，用于根据获得的矿床开始的实验数据进行预测。预测模型适用于扁平矩形Hastelloy-X测试试样上的结晶颗粒（亚利桑那州道路测试粉尘）沉积物。在1,000-1,100摄氏度的实验流动温度下，粒子的撞击角度在20到80度之间变化。使用显微成像和图像处理程序，通过归一化的粒子沉积物单位面积和表面覆盖率，对平均沉积物进行系统地量化。沉积物堆积是近表面试样温度和试样角度的二次函数。

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来源
《The Aeronautical Journal》 |2017年第1242期|1187-1199|共13页
作者
Boulanger A.; Hutchinson J.; Ng W. F.; Ekkad S. V.; Keefe M. J.; Xu W.; Barker B.; Hsu K.;
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作者单位

Virginia Tech, Coll Engn, Dept Mech Engn, Blacksburg, VA 24061 USA;

Virginia Tech, Coll Engn, Dept Mech Engn, Blacksburg, VA 24061 USA;

Virginia Tech, Coll Engn, Dept Mech Engn, Blacksburg, VA 24061 USA;

Virginia Tech, Coll Engn, Dept Mech Engn, Blacksburg, VA 24061 USA;

Virginia Tech, Coll Sci, Dept Stat, Blacksburg, VA USA;

Virginia Tech, Coll Sci, Dept Stat, Blacksburg, VA USA;

Rolls Royce Corp, Indianapolis, IN USA;

Rolls Royce Corp, Indianapolis, IN USA;

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原文格式 PDF
正文语种 eng
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关键词
Sand; deposition; turbines; Arizona Road Dust;

机译：沙子;沉积物;涡轮机;亚利桑那州道路扬尘;

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Experimental investigation of the onset of sand deposits on Hastelloy-X between 1,000 degrees C and 1,100 degrees C

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