Method for testing contact thermal resistance of GH4169/K417 alloy
A GH4169, contact thermal resistance technology, applied in the field of high-temperature metal material testing, can solve the problems of complex testing process, fixed testing conditions, and inability to provide timely and accurate contact thermal conductivity data of material interface, so as to simplify the testing process and make the testing process simple Effect
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[0127] In order to verify the correctness of the determined contact thermal resistance model, a set of confirmatory tests were carried out, and the test results are shown in Table 9:
[0128] Table 9 confirmatory test data
[0129]
[0130] (1) The empirical formula used to determine the contact thermal resistance: h s =26.534T 0.107 P 1.297
[0131] calculate h s :
[0132]
[0133] (2) The empirical formula used to determine the thermal contact resistance: h s =41.43P 1.291
[0134] The calculated contact thermal conductance h s :
[0135]
[0136]
[0137] It can be drawn through the above examples that the test method provided by the present invention can directly bring the temperature and pressure data into the formula when the temperature and pressure are changed at the same time or only the pressure is changed. The relationship between the two materials GH4169 / K417 can be obtained Contact thermal conductance, and then get the contact thermal resist...
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