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Creep test with use of miniaturized specimens

机译：使用小型化标本的蠕变试验

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Application of the mini samples methods is very common especially for residual service life assessment of the components operating in the energy sector. Residual lifetime of operating device can be evaluated using standard tests, but these usually cannot be performed due to limited material amount that can be extracted from the components. It is possible to use in these cases a semi destructive sampling of materials and testing methods employing miniature specimens. This article deals with comparison of the creep results obtained with the use of on standard test bars and sub sized samples such as Small Punch Test and newly proposed miniature samples that are axially loaded. The experiment was performed on steam line steel CSN 15 128 after operation. Emphasis was put to practical use of the test results and therefore residual life was assessed with the use of standard and new mini specimens. The results obtained for standard and mini samples exhibit very good agreement without necessity of any correlation as in the case of SPT and thus much more straight forward approach can be applied even for "unknown materials".
机译：迷你样品的应用是非常常见的，特别是对于在能量领域运行的部件的残余使用寿命评估。可以使用标准测试评估操作装置的剩余寿命，但由于可以从组件中提取的有限的材料量，通常不能进行这些通常不能进行。在这些情况下可以使用采用微型样本的材料和测试方法的半破坏性采样。本文涉及使用在标准试验条和子尺寸样本中获得的蠕变结果进行比较，例如小冲击测试和轴向装载的新提出的微型样品。在操作之后对蒸汽管线CSN 15 128进行实验。重点是实际使用测试结果，因此使用标准和新型迷你标本评估残留的寿命。对于标准和迷你样品获得的结果表现出非常良好的一致性，而不需要任何相关性，因为在SPT的情况下，甚至可以适用更直接的方法即使是“未知材料”也可以应用。

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