Alloy Microstructure Analysis via Isostatic Pressing and Interferometry

The patent replaces traditional optical microscopy and chemical etching with isostatic pressing technology that applies uniform fluid pressure to the alloy surface. This mechanical substitution eliminates the need for subjective optical observation and chemical etching processes, providing objective, quantitative deformation measurements that directly reflect microstructure characteristics without the limitations of microscope amplification or etching solution variability

The patent changes the measurement parameter from optical image analysis to physical deformation measurement under controlled isostatic pressure. By measuring the deformation amount of microstructures under uniform pressure, the method transforms the analysis from subjective visual inspection to objective quantitative measurement, where deformation characteristics directly correlate with microstructure properties

The patent employs isostatic pressing technology that uses fluid (pneumatic or hydraulic) to transmit uniform pressure to the alloy sample. The fluid medium ensures that pressure is applied equally in all directions and uniformly across the entire surface, eliminating the uneven deformation that occurs with conventional mechanical pressing methods. This allows standardized analysis by ensuring consistent deformation conditions across different microstructure regions

The patent creates an equipotential pressure field through isostatic pressing, where the fluid pressure is uniform throughout the contact area. This equipotential condition ensures that all surface microstructures experience the same pressure conditions, enabling standardized comparison and analysis of deformation behavior across different microstructure types without the position-dependent variations that plague non-isostatic methods

The patent replaces chemical etching with mechanical isostatic pressing that deforms microstructures based on their inherent mechanical properties. This substitution eliminates the chemical variability of etching solutions while providing sufficient contrast through deformation differences, achieving both feature visibility and analytical consistency without the authenticity and clarity issues caused by solution proportioning and reaction time variations

The patent allows the microstructures to reveal their characteristics through their own deformation response to isostatic pressure. Different microstructure types naturally deform differently under the same pressure conditions based on their mechanical properties, eliminating the need for external chemical agents. This self-service approach ensures consistent, authentic representation of microstructure features without the variability introduced by etching chemistry