LDM TC11 Titanium Alloy Sample Preparation

Laser Metal Deposition (LDM) technology uses metal powder as feedstock, building up components layer by layer through a high-power laser to achieve near-net-shape forming of TC11 titanium alloy parts — without the need for large forging dies. This process offers high material utilization and short production cycles. As a high-temperature titanium alloy designed for long-term service at 500 °C, TC11 is widely used in critical load-bearing components such as aero-engine blades and compressor discs.

Metallographic examination serves as the vital link between LDM process parameters and the final performance of TC11 titanium alloy. It enables direct assessment of the as-deposited microstructural uniformity, α/β phase distribution, and columnar grain morphology, while precisely identifying metallurgical defects such as lack of fusion and porosity. Metallographic micrographs act as the "visual language" of the microstructure — serving as the core basis for product quality classification and acceptance, supporting the establishment of process–microstructure–property correlations, and providing critical data for the reliability and airworthiness certification of LDM titanium alloy components.

1.Grinding — P400 MET-SP abrasive paper with water cooling;

2.Fine Grinding — POS grinding disc + 9 µm PD-WT polycrystalline diamond suspension;

3.Coarse Polishing — YS-JP polishing cloth + 3 µm PD-WT diamond polishing suspension;

4.Final Polishing — ZN-ZP polishing cloth + 0.05 µm SO-T439 polishing suspension.xperts and scholars in the field of aviation materials on-site, contributing its modest effort to promoting the development of industrial technology.