Method for determining creep strength at different positions of nickel-based single crystal blade
A nickel-based single crystal, creep strength technology, applied in the field of nickel-based superalloys, can solve the problem of not considering the difference in the size of the γ' phase of the single crystal blade, the inability to analyze and determine the creep strength of the nickel-based single crystal blade, and the inability to It reflects the microstructure of γ/γ' phase very well, and achieves the effect of accurate analysis and determination
Pending Publication Date: 2021-06-01
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
However, the γ' phase single particle model is too idealized and cannot reflect the real γ / γ' phase microstructure well.
Moreover, the γ' phase single particle model does not consider the difference in the size of the γ' phase at different positions of the single crystal blade.
Therefore, the existing technology cannot accurately analyze and determine the creep strength at different positions of the nickel-based single crystal blade
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[0049] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure.
[0050] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, on...
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The invention relates to a method for determining creep strength at different positions of a nickel-based single crystal blade and a computer readable medium. The method comprises the following steps: providing blade samples at different positions of the nickel-based single crystal blade; shooting the metallographic structures at different positions in each blade sample to form a plurality of metallographic structure diagrams corresponding to the metallographic structures at all the positions; according to each metallographic structure diagram, establishing a probability density function of gamma'phase microstructure areas at different positions of the nickel-based single crystal blade; according to the probability density function, selecting a preset number of gamma'phase samples, and establishing gamma / gamma 'phase model diagrams at different positions of the nickel-based single crystal blade; according to the model diagram, establishing finite element models of gamma / gamma'phases at different positions of the nickel-based single crystal blade, and calculating the finite element models at the different positions to determine the creep strength at the different positions of the nickel-based single crystal blade. According to the method, the creep strength of the nickel-based single crystal blade at different positions can be determined more accurately.
Description
technical field [0001] The present disclosure relates to the technical field of nickel-based superalloys, and in particular to a method for determining creep strength at different positions of a nickel-based single crystal blade and a computer-readable storage medium. Background technique [0002] In the field of nickel-based superalloy technology, high-temperature creep is the main form of failure of nickel-based single crystal blades. In order to avoid failure caused by creep fracture of nickel-based single crystal Variable intensity analysis. [0003] In the prior art, a γ' phase is usually used to establish a single particle model. However, the γ' phase single particle model is too idealized and cannot reflect the real γ / γ' phase microstructure well. Moreover, the γ' phase single particle model does not consider the difference in the size of the γ' phase at different positions of the single crystal blade. Therefore, the prior art cannot accurately analyze and determin...
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Login to View More IPC IPC(8): G06F30/23G16C20/30
CPCG06F30/23G16C20/30
Inventor 王心美李磊岳珠峰李振兴乔诗展
Owner NORTHWESTERN POLYTECHNICAL UNIV