期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 731, 期 -, 页码 1238-1246出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.10.142
关键词
Hydrogen trapping; Hydrogen embrittlement; Duplex stainless steel; High strain rate; Dynamic strength
资金
- PAZI foundation
The influence of hydrogen on austenitic-ferritic (duplex) stainless steels is studied by dynamic experiments supported by lattice defects' energy with hydrogen. The susceptibility of steels to hydrogen fracture mechanism is directly related to the interaction between traps (defects) and hydrogen; therefore, it is being affected the most by the deformation process. The purpose of this paper is to study and analyze the applicability of hydrogen embrittlement in lean duplex stainless steel (LDS) at high strain rate (similar to 10(5) s(-1)) and high dynamic pressure (above 8 GPa). This article reviews hydrogen defects' energy to activate hydrogen fracture mechanisms, in LDS alloys, in response to deformation at strain rates of 10(-7) s(-1), and compares these results to new experiments at high strain rates of 10(5) s(-1). We support these results by post-microstructural observations, after dynamic experiments, and measurements of trapping energy levels using thermal desorption measurements (TDS) analyzed by Lee and Lee's model. Simulations for dynamic experiments were applied. From these results, we refer for the first time to the invalidity of the hydrogen fracture mechanism at high strain rate (10(5) s(-1)) and high dynamic pressures (P >= 8 GPa). (C) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据