Article
Materials Science, Multidisciplinary
Cem Ornek, Bilgehan M. Sesen, Mustafa K. Urgen
Summary: This paper investigates the mechanism of hydrogen-microstructure-strain interactions in a finely-grained 25Cr-7Ni super duplex stainless steel subjected to dynamic tensile loading. It reveals that hydrogen affects the properties of austenite and ferrite, leading to the occurrence of hydrogen-induced cracks, with the hydrogen absorption capacity of austenite playing a decisive role in hydrogen embrittlement susceptibility.
METALS AND MATERIALS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Milene Yumi Maeda, Motomichi Koyama, Hayato Nishimura, Osvaldo Mitsuyuki Cintho, Eiji Akiyama
Summary: Hydrogen has significant effects on the ductility loss and fracture behavior of nitrogen-doped duplex stainless steel, resulting in quasi-cleavage and intergranular fractures associated with transgranular austenite cracking and ferrite/austenite interface cracking, respectively. Deformation twinning in austenite and nitrogen-related solution hardening are crucial factors leading to brittle-like cracking.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Yunjian Song, Shu Huang, Jie Sheng, Emmanuel Agyenim-Boateng, Yunfeng Jiang, Qiang Liu, Mingliang Zhu
Summary: The hydrogen embrittlement resistance of 2205 duplex stainless steel treated with laser peening was investigated. Laser peening changed the morphology and distribution of the ferrite and austenite phases, altering the path of hydrogen transport and diffusion. The refined grain structure induced by laser peening increased the difficulty of hydrogen atom penetration by providing more tortuous grain boundaries. Furthermore, the beneficial microstructures induced by laser peening, such as dislocation entanglements and mechanical twins, helped trap hydrogen atoms and reduce their mobility. Hydrogen determination tests provided direct evidence of reduced hydrogen penetration. Additionally, the depth of the brittle region in the tensile fracture was inversely proportional to the laser power density, indicating that increasing laser power density can decrease the hydrogen embrittlement sensitivity of the 2205 duplex stainless steel.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Weijie Wu, Shenguang Liu, Xuewei Zhang, Weiguo Li, Jinxu Li
Summary: This study investigates the loss of ductility in a hydrogen-charged 2205 duplex stainless steel at different temperatures. The interactions between hydrogen and the dual-phase microstructure are observed by statistically characterizing the initiation and propagation of hydrogen-induced microcracks during tensile straining. The results show that higher temperatures lead to reduced hydrogen embrittlement susceptibility and thickness of the hydrogen-induced brittle layer. It is also found that hydrogen desorption is accelerated at 42 degrees C during straining.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Mechanical
V. Arniella, G. Alvarez, J. Belzunce, C. Rodriguez
Summary: The extensive use of hydrogen derived from renewable energy sources is limited by the lack of effective storage and transport solutions. To manufacture safe and reliable storage vessels and pipes, steels that can withstand hydrogen gas environments at high pressure are needed. The mechanical behavior of 2205 duplex stainless steel was studied through various tests, and the hydrogen embrittlement indexes were analyzed.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2023)
Article
Materials Science, Multidisciplinary
Bilgehan M. Sesen, Mubashir Mansoor, Cem Ornek
Summary: In this study, slow-strain rate testing with in-situ microstructure imaging during electrochemical hydrogen charging was used to investigate hydrogen embrittlement of super duplex stainless steel. The results showed that tensile deformation during hydrogen absorption softens the austenite and ferrite phases, resulting in a decrease in macroscopic yield point and fracture strain. However, when hydrogen absorption precedes micro-tensile testing, it strengthens the microstructure, exhibiting a complex dual response.
Article
Materials Science, Multidisciplinary
Mathias Truschner, Robin Kroll, Matthias Eichinger, Andreas Keplinger, Dirk L. Engelberg, Gregor Mori
Summary: The hydrogen uptake and embrittlement characteristics of a cold-drawn austenitic stainless steel wire were investigated. The resistance to hydrogen embrittlement was found to decrease significantly with a 50% degree of cold deformation. The hydrogen content was assessed using thermal desorption and laser-induced breakdown spectroscopy, which established a correlation between the absorbed hydrogen and the intensity of near-surface hydrogen. The sub-surface hydrogen content of the hot-rolled specimen was determined to be 791 wt.ppm.
Article
Materials Science, Multidisciplinary
Dae Geon Lee, Ji Hoon Kim, Seong Hoon Kim, Heon Young Ha, Tae Ho Lee, Joonoh Moon, Dong-Woo Suh
Summary: We investigated the behavior of hydrogen and its effect on mechanical properties in duplex stainless steel under different charging conditions. In the ex-situ condition, hydrogen uptake increased linearly with charging time, with trapping mainly occurring at dislocations and grain boundaries in the ferrite phase. However, with prolonged charging time, trapping also occurred at the ferrite-austenite interface. In the in-situ condition, hydrogen uptake was accelerated and penetration into the steel interior was deeper, which was attributed to transport through gliding dislocations. The loss of elongation in the duplex stainless steel became less sensitive to hydrogen content as charging time increased, indicating a remarkable resistance to hydrogen embrittlement compared to conventional high strength steels.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Weijie Wu, Hao Fu, Xuewei Zhang, Weiguo Li, Shenguang Liu, Jinxu Li
Summary: This study investigates the effect of anisotropy on the Hydrogen Embrittlement (HE) susceptibility of a 2205 Duplex Stainless Steel (DSS). The slip transfer across Grain Boundary (GB) is analyzed both experimentally and theoretically. Specimens sampled along the 45 degrees Rolling Direction (RD) exhibit remarkable HE resistance due to delayed microcrack initiation and slow evolution. Hydrogen-Assisted Cracks (HACs) often initiate at the austenite GBs due to the synergistic interactions between hydrogen-enhanced planar slip and slip transfer across GB, leading to stress/hydrogen accumulation and reduced GB cohesion.
Article
Materials Science, Multidisciplinary
Qian Yan, Luchun Yan, Xiaolu Pang, Kewei Gao
Summary: This study investigated the influence of Cu precipitations on hydrogen trapping capability and hydrogen embrittlement (HE) in aged martensitic stainless steel. The results showed a significant decrease in the hydrogen diffusion coefficient and a substantial increase in the hydrogen content in specimens containing Cu precipitations. The specimens with peak-aged (1 h) Cu precipitations exhibited the highest HE susceptibility, as a result of abundant hydrogen trapped by coherent Cu precipitations with the matrix and escaped during the tensile process.
Article
Metallurgy & Metallurgical Engineering
Loyslene Rabelo Fernandes, Lisa Claeys, Margot Pinson, Tom Depover, Dagoberto Brandao Santos, Kim Verbeken
Summary: This study investigates the mechanical properties and hydrogen embrittlement susceptibility of duplex stainless steels under heat treatment and hydrogen charging conditions. The results show that hydrogen charging significantly exacerbates the embrittlement of the material, and in-situ bending tests are more suitable for evaluating the impact of hydrogen on mechanical properties.
STEEL RESEARCH INTERNATIONAL
(2021)
Article
Metallurgy & Metallurgical Engineering
Takahiro Osuki, Kazuhiro Ogawa
Summary: This study investigated the quantitative effects of amounts of cold work on the precipitation and growth behavior of the sigma phase in super duplex stainless steels. A model describing the acceleration of sigma phase due to cold work was proposed, with the validity confirmed by a good fit to experimental data from another published work.
ISIJ INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Vahid A. Hosseini, Mattias Thuvander, Kristina Lindgren, James Oliver, Nicklas Folkeson, Daniel Gonzalez, Leif Karlsson
Summary: The study found that Fe and Cr phase separation kinetics were faster in SDSS plates compared to welds, and the surface of the SDSS plate exhibited faster phase separation and larger toughness drop. HDSS welds experienced a toughness drop after aging, while SDSS welds maintained their toughness. The presence of Ni in the system increased the interdiffusion of Cr, resulting in higher phase separation in SDSS welds compared to HDSS welds.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Physical
Hyung-Jun Cho, Kyung-Shik Kim, Han-Seop Noh, Sung-Joon Kim
Summary: The effect of cold rolling on hydrogen embrittlement in stable 18Cr-1Mn-11Ni-0.15N austenitic stainless steels was investigated in this study. It was found that the severity of hydrogen embrittlement increased with the degree of cold rolling, due to the generation of deformation twins and increased defect density during the process. The combination of cracks generated at the twin boundaries and promoted hydrogen diffusion led to severe hydrogen embrittlement in the cold-rolled steels.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Nuclear Science & Technology
Gildardo Gutierrez-Vargas, Alberto Ruiz, Victor H. Lopez-Morelos, Jin-Yeon Kim, Jorge Gonzalez-Sanchez, Ariosto Medina-Flores
Summary: In this study, conductivity measurements were used in conjunction with electrochemical tests to detect embrittlement in duplex stainless steels aged at 475 degrees Celsius. The results showed that the four-point probe conductivity method correlated with other mechanical and corrosion test results, demonstrating its potential as a field-deployable method for evaluating embrittlement at 475 degrees Celsius.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2021)
Article
Computer Science, Interdisciplinary Applications
Usman Abubakar, Srinivas Sriramula, Neill C. Renton
COMPUTERS & CHEMICAL ENGINEERING
(2015)
Article
Engineering, Chemical
Usman Abubakar, Srinivas Sriramula, Neill C. Renton
CHEMICAL ENGINEERING COMMUNICATIONS
(2015)
Article
Automation & Control Systems
A. M. Elhoud, N. C. Renton, W. F. Deans
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2011)
Article
Materials Science, Multidisciplinary
Neill C. Renton, Abdu M. Elhoud, William F. Deans
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2011)
Article
Nanoscience & Nanotechnology
Alfred R. Akisanya, Udoka Obi, Neill C. Renton
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2012)
Proceedings Paper
Engineering, Ocean
Neill C. Renton, Paul Sicsic, Joao Falcao Alegrias
PROCEEDINGS OF THE ASME 36TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2017, VOL 5A
(2017)
Article
Green & Sustainable Science & Technology
Usman Abubakar, Srinivas Sriramula, Neill C. Renton
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2015)
Proceedings Paper
Engineering, Multidisciplinary
A. A. Mohamed, R. Neilson, P. MacConnell, N. C. Renton, W. Deans
11TH INTERNATIONAL CONFERENCE ON THE MECHANICAL BEHAVIOR OF MATERIALS (ICM11)
(2011)
