T/GAMA 08-2020 Additive manufacturing of nickel-titanium alloys: Ultrasonic testing method using liquid immersion

Scope

Scope: This standard specifies the ultrasonic testing method for additive manufactured nickel-titanium alloy products using instruments that emit and receive longitudinal, transverse, and surface waves, and employs liquid as a coupling agent to detect surface, near-surface, and internal defects of the products. It also covers the selection principles of process parameters, the determination of defect locations and sizes, and the evaluation methods for defects. Main technical content: This standard applies to the liquid immersion ultrasonic testing of surface, near-surface, and internal defects of additive manufactured nickel-titanium alloy products with dimensions not exceeding 25mm × 25mm × 25mm. For specimens with thickness greater than or less than the above range, if the sensitivity of the detection system can meet the detection requirements through testing, they can refer to this standard for implementation.

Development Information

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