GB/T 19744-2005
ActiveDetermining of plane-strain crack-arrest fracture toughness,K Ia,for ferritic Steels
铁素体钢平面应变止裂韧度 K Ia 试验方法
Application Summary AI generated
This standard specifies the test method for determining the plane-strain crack-arrest fracture toughness (K Ia) of ferritic steels. It is applied in the metallurgical and structural engineering industries to evaluate a material's ability to stop a running crack, particularly for thick-section steel plates and components used in pressure vessels, pipelines, and offshore structures. The testing context involves laboratory fracture mechanics tests to ensure safety against brittle fracture in low-temperature or high-stress service environments.
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