鋼中の水素の挙動に関する基礎的研究-5-鋼の水素収蔵能および透過能におよぼす塑性変形量の影響 [in Japanese] Fundamental Research on the Behavior of Hydrogen in Steel (Part 5) : Effect of Residual Plastic Strain on the Occludability and Permeability of Hydrogen in Steel [in Japanese]
Search this Article
The effect of the residual plastic strain on the diffusivity of hydrogen was studied by means of the occlusion test and permeation test. Specimens were strained in four stages by plastic deformation. (residual plastic strain ε=4% 8%, 12% and 16%) Hydrogen was charged cathodically. From the results of these tests, it was found that the hydrogen diffusivity depends upon the residual plastic strain. Generally, hydrogen diffusion coefficient increases with an increasing strain. From these results and previous work, it is considered that diffusion coefficient of hydrogen in steel specimen under various applied stress or strain increases within the order of (10)^<-7> and (10)^<-6>(cm)^2/sec.
- Journal of the Japan Welding Society
Journal of the Japan Welding Society 38(3), 255-260, 1969-03
Japan Welding Society