Niobium-titanium alloys feature outstanding corrosion resistance, high specific strength, excellent biocompatibility and superconducting properties. They are widely applied in critical fields including medical implants, aerospace, superconducting magnets, nuclear energy and chemical engineering, serving as core structural materials for high-end precision manufacturing.

The mechanical properties and stability of the alloy are entirely determined by its microstructure. During melting and processing, defects such as chemical segregation, uneven grain size and inclusions easily occur, which directly endanger service safety.

Metallographic inspection is the core quality control method for niobium-titanium alloys. Professional sample preparation and microscopic observation enable clear identification of α/β phase ratio, grain morphology and micro-defects, so as to accurately evaluate heat treatment and forging processes.Supported by metallographic analysis, internal material risks can be detected, production parameters optimized, and overall material performance stabilized. It provides crucial microstructural data for the high-end and reliable application of niobium-titanium alloys.

The professional metallographic sample preparation procedure for niobium-titanium alloy is as follows:

1️⃣ Grind with P400 metallographic abrasive disc to remove cutting deformation layer and flatten the sample surface.

2️⃣ Fine grinding with POS disc and 9μm PD-WT polishing suspension.

3️⃣ Rough polishing with YC-JP polishing cloth and 3μm PD-WT polishing suspension.

4️⃣ Final polishing with ZN-ZP polishing cloth and AO-A439 polishing suspension.

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