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介绍了超超临界机组螺栓的引进情况,并针对镍基高温合金及马氏体钢螺栓的组织结构特点按螺栓外径研制出组合专用试块及探头,在试验的基础上,建立了超声检测工艺方法。
Introduced the introduction of ultra-supercritical unit bolts, and developed a combination of special test blocks and probes according to the bolt diameter of the structure of nickel-based superalloy and martensitic steel bolts on the basis of the test, the establishment of ultrasonic testing Process method.