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2012 International Hydrogen Conference Oral

9:20-9:40 am The Effect of Nano-Sized TiC Precipitates on Hydrogen Embrittlement of Tempered Lath Martensitic Steel . A. Nagao, B. Eftink, M. Dadfarnia, B. Somerday, P. Sofronis (Japan, USA) 9:40-10:00 am Hydrogen Embrittlement in an Ultrafine Elongated Grain Structure Steel Processed by Warm Tempforming A Perspective of the Small Punch Test Application to the Oct 26, 2018 · Arroyo, B, Álvarez, JA, Gutiérrez-Solana, F, Sainz, J, & Lacalle, R. "A Perspective of the Small Punch Test Application to the Evaluation of Hydrogen Embrittlement in Steels:Effect of Punch Rate on Fracture Properties." Proceedings of the ASME 2018 Pressure Vessels and Piping Conference. Volume 1A:Codes and Standards. Prague, Czech Republic.

Contents

Hydrogen Embrittlement in Ultrafine Elongated Grain Structure Steel Processed by Warm Tempforming Yuuji Kimura, Tadanobu Inoue, Eiji Akiyama, and Kaneaki Tsuzaki Crystallographic Analysis of Hydrogen-Related Fracture in Medium Carbon Martensitic Steel Akinobu Shibata, Tamotsu Murata, and Nobuhiro Tsuji Disk pressure testing of hydrogen environment embrittlementHydrogen environment embrittlement (HEE) of the austenitic stainless steels of types 304, 316 and 310S with the solution-annealed, sensitized and desensitized heat treatments was investigated in hydrogen and helium of 1 MPa in the temperature range from 295 to 80 K. Effect of hydrogen on the benefit of warm prestressingconsider the effect of in-service degradation such as hydrogen embrittlement. It is known that hydrogen has the effect of reducing fracture resistance, but the interaction of this effect with warm prestressing is not clear. The primary objective of this work is to determine the effect of hydrogen embrittlement on the benefit of warm prestressing.

Effect of intercritical annealing time on hydrogen

May 30, 2018 · The susceptibility to hydrogen embrittlement (HE) of warm-rolled medium Mn steel (0.2C-5Mn-0.6Si-3Al) with different microstructure characteristics obtained by changing intercritical annealing time at 750 °C was investigated by carrying out slow strain rate test and hydrogen thermal analysis on electrochemically hydrogen charged samples. Effects of Hot Stamping and Tempering on Hydrogen The effects of hot stamping (HS) and tempering on the hydrogen embrittlement (HE) behavior of a low-carbon boron-alloyed steel were studied by using slow strain rate tensile (SSRT) tests on notched sheet specimens. It was found that an additional significant hydrogen desorption peak at round 6580 °C appeared after hydrogen-charging, the corresponding hydrogen concentration (CHr) of the HS Embrittlement in One of Four Boilers Journal of Combined Effect of Temper and Hydrogen Embrittlement on Threshold for Hydrogen-Induced Fracture in Cr-Mo Steels J. Pressure Vessel Technol (April,2013) Characteristics of the New Embrittlement Correlation Method for the Japanese Reactor Pressure Vessel Steels

ISIJ International, Advance Publication by J-STAGE ISIJ

fielding effect, thereby reducing the fracture driving force. Hydrogen embrittlement is thought to be caused by the local accumulation of hydrogen in the stress-concentrated region near the notch root. The criterion for hydrogen warm tempforming is a type of severe plastic deformation, Influence of Prior-Austenite Grain Structure on the Applying warm tempforming using multi-pass caliber rolling at 773 K with a cumulative rolling reduction of 76% to 0.6C-2Si-1Cr steel resulted in a marked improvement in the hydrogen embrittlement Yuuji Kimura's research works National Institute for Warm tempforming effect on the hydrogen embrittlement of 1.8-GPa-class ultra-high-strength low-alloy steel Hydrogen embrittlement of high-strength steels was investigated by using slow strain

Hydrogen Embrittlement Evaluation of Different Heats of

Effect of YS on the hydrogen embrittlement was also observed. The incremental step loading technique showed that J th and the J-R curve slope decreased as the YS increases. The rising displacement method also clearly showed the lowest toughness and the flattest J-R curve slope in the highest strength grade (120ksi) despite showing similar performance between the 100ksi and 110ksi