Mechanism of Development of Damage of Low-Strength Pipe Steel Due to Hydrogenation Under Operation

IF 0.7 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
O. I. Zvirko, M. I. Hredil, O. T. Tsyrulnyk, O. Z. Student, H. M. Nykyforchyn
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Abstract

Resistance of pipe steels to hydrogen embrittlement is an important indicator of their serviceability. Pipes are manufactured from steels of a wide strength range. With the strength increase, a susceptibility to hydrogen embrittlement in general increases. This regularity is usually true for steels in the as-received state; however, the long-term operation can increase hydrogen susceptibility even of low- strength steels. This is caused by the development of damage dissipated in the metal bulk with the formation of voids due to deformation caused by high-pressure recombined hydrogen in them. Implementation of the hydrogen-induced damage mechanism, associated with the formation of deformation voids, extends the strength range of pipe steels, which become prone to operational hydrogen embrittlement.

Abstract Image

低强度钢管在运行中因氢化而受损的发展机理
钢管的抗氢脆性能是衡量其适用性的一个重要指标。钢管由各种强度的钢材制造而成。随着强度的增加,氢脆的易感性一般也会增加。这种规律性通常适用于刚收到的钢材;但是,即使是低强度钢材,长期使用也会增加氢脆敏感性。这是由于高压氢在金属块体中重新结合产生变形,形成空隙,导致金属块体中的损伤耗散。与变形空隙的形成有关的氢致损伤机制的实施扩大了管材钢的强度范围,使其容易发生操作性氢脆。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Materials Science
Materials Science 工程技术-材料科学:综合
CiteScore
1.60
自引率
44.40%
发文量
63
审稿时长
4-8 weeks
期刊介绍: Materials Science reports on current research into such problems as cracking, fatigue and fracture, especially in active environments as well as corrosion and anticorrosion protection of structural metallic and polymer materials, and the development of new materials.
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