Causes of the cracks in the pipeline made of the 15HM steel

[摘要] Issues referring to cracks in the pipelines made of the 15HM steel are described. Metallographic specimen of welded joints are provided. The results of impact strength tests, hardness tests and static tensile tests are given. Tests results as well as direct and indirect causes of the pipeline cracks are shown.

[学科分类] 金属与冶金

[关键词] Industrial Chemistry;Substances and Products;Materials Sciences;Materials Processing