Full-field method for the statistical evaluation and characterization of micro-induced fluid stress for microstructures of alloys

摘要

The invention relates to a micro-scale full-field [statistical] and characterizing full-field micromachining process for microstructures of alloys comprising the steps of: a) grinding and polishing the surface of an alloy sample for high gloss polishing without grinding error and then defining a region to be measured on the surface of the alloy sample, b) the use of a white light interferometric 3D surface profilometer to perform on the surface of the alloy sample a measurement of the morphology in the initial state, c) the application of the technology of isostatic pressing to the microstructural deformation on the To obtain a surface of the alloy sample, and then the application of a white light interferometric 3D surface profilometer to perform the measurement of morphology in the deformed state on the surface of the alloy sample, so that a Spektru d) performing the oversized and rapid quantitative statistical distribution characterization of the microstructures in the region of the alloy to be measured, based on the morphological changes before and after isostatic pressing, so that a corresponding full-field metallography is obtained. In the present invention, the pretreatment of the sample is easy, the analysis speed is high, the sampling area is large, and the requirements for the high-performance oversized analysis can be satisfied, so that the metallographic characteristics of materials as a whole can be obtained.