Showing and quantitative evaluation methods of gamma' phase in nickel-based superalloy
A technology of nickel-based superalloy and corrosive agent, which is applied in the preparation of test samples, instruments, scanning probe technology, etc. High and practical effect
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Embodiment 1
[0046] The invention provides a set of schemes for quantitatively evaluating the γ' phase content aiming at the shortcomings of the existing nickel-base superalloy metallographic quantitative evaluation. The scheme includes: 1. providing a corrosion agent with good corrosion effect and capable of displaying the γ' form of the nickel-based superalloy strengthening phase and its preparation method, and at the same time providing a corrosion method for the corrosion agent to corrode the nickel-base superalloy. The morphology of the strengthening phase γ' of the nickel-base superalloy is clearly displayed, which is beneficial to the observation and measurement of the strengthening phase γ' of the processed surface of the nickel-base superalloy. Second, on this basis, use the drawing analysis software to process the obtained microscope γ' phase pictures to obtain the volume fraction of the nickel-based superalloy γ' phase.
[0047] The whole operation flow of the present invention ...
Embodiment 2
[0065] Nickel-based superalloy GH4169 corroded by the formula of "40 milliliters of hydrochloric acid, 20 milliliters of hydrofluoric acid, 40 milliliters of ethanol, and 2 grams of copper chloride", and other processing steps are the same as in Example 1 to obtain the volume of the γ' phase in GH4169 The score is 29.82%.
[0066] G 0 (γ') is 27.53%,
[0067] The error of the amount of γ' phase obtained by comparing the formula C of this etchant with the above calculation formula is 8.3%.
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