ارزیابی تأثیر الگوی روبش بر بافت انجمادی اینکونل 625 در فرایند رسوب نشانی مستقیم لیزری

Turbine blades with controlled textures such as single-crystal and oriented crystalline structures improve flexibility, lifetime, and thermal fatigue. This research project investigates the texture of an Inconel 625 sample produced by direct laser deposition with different motion patterns. In this study , the crystalline structure of Inconel 625 was produced by additive manufacturing on the homogenous substrate using three patterns: unidirectional, reciprocating, and circular. Polfigure images and the orientation distribution function were used to examine the sample texture. According to the results, the main texture
component in the reciprocating, unidirectional, and circular patterns was Goss and brass; Goss; and rotated Goss and rotated cub, respectively. The distribution of grain boundary mismatch for all three motion patterns was over 30°. The texture intensity of direction <100 is higher in unidirectional and circular patterns than other directions, and this difference increases in circular patterns. According to the Polfigures images, the texture intensity for the circular, unidirectional, and reciprocating patterns was 1.5, 1.4, and 1.3 times random. As a result, the circular pattern showed the highest texture intensity among the
samples