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首页> 外文会议>International Conference on Local Mechanical Properties >Residual Stresses and Young's Moduli of Plasma Sprayed W+Cu Composites and FGMs Determined by In Situ Curvature Method
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Residual Stresses and Young's Moduli of Plasma Sprayed W+Cu Composites and FGMs Determined by In Situ Curvature Method

机译：通过原位曲率法测定的血浆喷涂W + Cu复合材料和FGM的残留应力和杨氏调节剂

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摘要

In this work, application of the in-situ curvature method on plasma sprayed composite and graded coatings is presented. First, uniform composites of different W/Cu ratio, were sprayed by water stabilized plasma. By continuous monitoring of the curvature of a flat specimen during spraying, the stress evolution throughout the entire history of coating formation was traced. By a simultaneous monitoring of curvature and temperature during post-deposition cooling, Young's moduli of the coatings were determined. Second, a 5-layer stepwise functionally graded material (FGM) was sprayed. With the knowledge of each layer's properties, the complex evolution of deposition, thermal and residual stresses in the FGM could be determined. The ability to determine the stresses and mechanical properties with a spatial resolution comparable to the thickness of one spray pass is demonstrated.
机译：在这项工作中，提出了原位曲率法在等离子体喷涂复合材料和渐变涂层上的应用。首先，通过水稳定的等离子体喷射不同W / Cu比的均匀复合材料。通过在喷涂期间连续监测扁平试样的曲率，跟踪整个涂层形成历史的应力演化。通过在沉积后冷却过程中同时监测曲率和温度，测定杨氏的涂层的模态。其次，喷洒5层逐步功能梯度材料（FGM）。随着每个层性质的知识，可以确定FGM中沉积，热和残余应力的复杂演化。证明了具有与一个喷射通的厚度相当的具有空间分辨率的应力和机械性能的能力。

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