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首页> 外文期刊>Advances in Science and Technology Research Journal >DEFORMATION AND ENERGY PARAMETERS OF FRACTURE OF STEEL OF THE MAIN GAS PIPELINE
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DEFORMATION AND ENERGY PARAMETERS OF FRACTURE OF STEEL OF THE MAIN GAS PIPELINE

机译:天然气管道钢的断裂变形和能谱参数

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摘要

By example of steel 17G1S, the regularities in the impact fracture of Charpy specimens at normal and low temperatures are described. The relationship between the energy parameters of fracture (impact toughness) and the deformation response of the material (the height of shear lips) of the specimens from the pipe steel is established. The micromechanisms of impact fracture of the material are described. At 20 °C and –30 °C, focal splitting of the material was observed on the fracture surface of specimens; at –60 °C, the material failed in a brittle manner by the mechanism of cleavage.
机译:以17G1S钢为例,描述了夏比试样在常温和低温下的冲击断裂规律。建立了断裂能参数(冲击韧性)与管钢试样的材料变形响应(剪唇高度)之间的关系。描述了材料冲击断裂的微观机制。在20°C和–30°C时,在试样的断裂表面上观察到了材料的焦点裂变。在–60°C时,该材料通过裂解机制以脆性方式破裂。

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