منابع مشابه
Minimising Hic/hac in Steel Using Low Hydrogen Electrode for Smaw
An improved welding electrode for producing weld metal having low amount of hydrogen therein so that hydrogen assisted cracking in weld zone is minimised. This is especially beneficial for welding high strength steel having tensile strengths of about 70000 psi or above. The reduction of slag /metal reaction temperature during welding have been found to have additional advantage of reducing the ...
متن کاملInfluence of amorphization on electrode performances of AB type 2 hydrogen storage alloys
It is generally accepted that the electrochemical discharge capacity of a hydrogen storage alloy is closely related to its crystal characteristics. From our experiment, the discharge capacity of AB type Laves phase hydrogen storage alloy ZrCr Mn V Ni 2 0.4 0.2 0.1 1.3 21 21 decreased sharply from 324 mAh g to 25 mAh g after amorphization by mechanically milling the crystalline (as-cast) alloy w...
متن کاملMicrostructure and electrochemical properties of Ti- containing AB2 type hydrogen storage electrode alloy
The microstructure and electrochemical properties variation of alloy Zr(MnVNi)2 after Ti substitution for Zr was investigated. The microstructures of Zr1ÿxTix (MnVNi)2 (x = 0, 0.5) alloys were determined with X-ray diraction (XRD), transmission electron microscopy (TEM), high resolution electron microscopy (HREM) and energy dispersive spectrum (EDS) analysis. The systematic structural analysis...
متن کاملFailure Investigation of Hydrogen Blistering on Low-strength Carbon Steel
The current study assesses the root causes of hydrogen blisters on low strength carbon steel equipment. For this purpose, some experiments including hardness test, non-destructive test (NDT), metallography, and fractograpghy are conducted. The microstructure of two blisters is assessed by means of optical microscopy and scanning electron microscopy (SEM). The microstructural studies show that t...
متن کاملelectrode Chlorine ion sensor Hydrogen ion sensor Microcontroller Switch Display
A measurement system was successfully fabricated to detect ion concentrations (hydrogen and chlorine) in this study. PIC18F4520, the microcontroller was used as the control unit in the measurement system. The measurement system was practically used to sense the H and Cl in different examples, and the pH and pCl values were exhibited on real-time LCD display promptly. In the study, the measureme...
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ژورنال
عنوان ژورنال: Journal of the Japan Welding Society
سال: 1999
ISSN: 0021-4787,1883-7204
DOI: 10.2207/qjjws1943.68.98