Method and device for testing environmental fracture toughness of petroleum pipe
The invention discloses a method and a device for testing the environmental fracture toughness of a petroleum pipe. The method comprises the following steps of: detecting the size of the fracture toughness of the petroleum pipe under the service environment, processing the petroleum pipe into a samp...
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| creator | DENG WENLIANG ZHANG ZHI ZENG DEZHI HOU DUO SHI TAIHE REN JIAN |
| description | The invention discloses a method and a device for testing the environmental fracture toughness of a petroleum pipe. The method comprises the following steps of: detecting the size of the fracture toughness of the petroleum pipe under the service environment, processing the petroleum pipe into a sample, determining the experimental temperature, pressure and gas-liquid phase corrosive medium according to the service working condition of the pipe, loading the sample by the device for testing the environmental fracture toughness of the petroleum pipe, calculating the fracture toughness according to the load size and the crack expansion length after experiment, and obtaining stress-corrosion-cracking resistance, notch sensitivity and the action mechanism of the metal material in the service environment. The method and the device disclosed by the invention has the advantages that the size of the fracture toughness of the metal material of the petroleum pipe in any load and corrosion environment can be determined, t |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Method and device for testing environmental fracture toughness of petroleum pipe |
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