Effect of Hydrogen Exposure on the Notch Tensile Properties of High Strength Steel in Hydrogen Gas Environment
スポンサーリンク
概要
- 論文の詳細を見る
The effect of hydrogen exposure on high strength steel, SCM435, based on a sharp notched specimen was investigated. Tensile tests were carried out in hydrogen gas and helium gas environments. In the hydrogen gas environment, specimens that were not exposed to hydrogen gas and specimens that were exposed to hydrogen gas for 48 h were used. As the result of the tensile tests with specimens of various notch depths, the tensile strengths of the hydrogen-gas-exposed specimens were higher than that of the non-exposed specimens. The tensile strength increases with the exposure time in hydrogen gas until hydrogen homogeneously diffuses in the entire specimen for the notched specimens of <I>t</I> =1.0 mm. The fracture surfaces of the specimens in hydrogen gas showed an intergranular fracture near the notch root while the specimens in helium gas showed a fracture mode of microvoid coalescence. The crack initiation stress of the non-exposed specimen was lower than that of the 48h-hydrogen-exposed specimen.
著者
-
Suzuki Yuichi
Graduate School Of Human Health Sciences Tokyo Metropolitan University
-
NOGUCHI Hiroshi
National Institute of Advanced Industrial Science and Technology (AIST)
-
ITOGA Hisatake
National Institute of Advanced Industrial Science and Technology (AIST)
関連論文
- Corticospinal Tract Extraction Combining Diffusion Tensor Tractography with fMRI in Patients with Brain Diseases
- Capsaicinol : Synthesis by Allylic Oxidation and Its Effect on TRPV1-Expressing Cells and Adrenaline Secretion in Rats
- Identification of the Aggregation Pheromone of the Brown-Winged Green Bug, Plautia stali SCOTT (Heteroptera: Pentatomidae)
- TIME OF MATING AND SEX PHEROMONE PRODUCTION AND RELEASE OF SPODOPTERA LITURA (F.) (LEPIDOPTERA : NOCTUIDAE)
- Identification of a sex pheromone component of the yellowish elongate chafer, Heptophylla picea Motschulsky (Coleoptera : Scarabaeidae)
- Sex pheromone communication from a population resistant to mating disruptant of the smaller tea tortrix, Adoxophyes honmai Yasuda (Lepidoptera: Tortricidae)
- SEX PHEROMONE OF THE SUMMERFRUIT TORTRIX : ISOLATION AND IDENTIFICATION
- Resistance to a mating disruptant composed of (Z)-11-tetradecenyl acetate in the smaller tea tortrix, Adoxophyes honmai (Yasuda)(Lepidoptera: Tortricidae)
- Effects of sex, mating status and temperature on flight activity of the Oriental tea tortrix, Homona magnanima (Lepidoptera : Tortricidae)
- Sex Pheromone of the Common Apple Leafroller, Hoshinoalongicellana WALSINGHAM (Lepidoptera : Tortricidae) : Isolation and Identification
- Sex Pheromone of Spodoptera litura (F.) (Lepidoptera : Noctuidae) : Isolation, Identification, and Synthesis
- Mating and Sex Pheromone of Spodoptera litura F. : (Lepidoptera : Noctuidae) : An Introductory Report
- Two Sex Pheromones of the Smaller Tea Tortrix : Isolation, Identification, and Synthesis
- Effect of Hydrogen Exposure on the Notch Tensile Properties of High Strength Steel in Hydrogen Gas Environment
- Effects of Mechanical and Environmental Factors on the Notch Tensile Strength of 1,300MPa Class SCM435 High-Strength Steel in Hydrogen Gas