The Test Method of Thermal Fatigue with Spherical Specimen and T-n-d Values
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摘要: 提出以球形試樣來測定材料抵抗熱疲勞龜裂能力的試驗方法,并提出了以上限溫度T,循環次數n,龜裂紋深度d作為衡量這種能力的定量的參數。作者在3種不同類型的材料,13個試樣上所進行的試驗,初步證明了此試驗方法及其定量參數T—n—d值的可行性Abstract: This article gives a method by which the thermal faiigue resistance of engineering materials can be measured through spherial specimen. The pare-meters of upper temperature T, cylc time n and fracture depth d are recommended as the quantitative indexes of measuring the thermal fatigue resistance of engineering materials. Three kinds, thirteen specimens were tested using this method and the test result have proved the feasibility of the method.
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Key words:
- fatigue /
- thermal fatigue /
- thermal fatigue test /
- T-n-d values
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