HYDROGEN DISTRIBUTION AND DIFFUSION BEHAVIOUR IN HIGH PRESSURE HYDROGEN CHARGED AUSTENITIC STEEL BY IMMA

Abstract

Abstract: The hydrogen distribution curve along cross-section of high pressure hydrogen charged spec- imens of 21Cr-7Ni-9Mn-N austenitic steel was obtained quantitatively by IMMA(Ion Microprobe Mass Analyzer).Thus the hydrogen solubility and diffusivity may be measured, and the hydrogen permeability and other parameters may be calculated indirectly.The hydrogen distribution in specimens either long-term aged in air or in electron beam weld seam after high pressure hydrogen charging was also examined.

Key words: ion microprobe analysis, high pressure hydrogen charging, hydrogen distribution, diffusion, austenitic steel

MA Luming LI Yiyi LIU Shuwang CHEN Lian Institute of Metal Research,Academia Sinica,Shenyang,China MA Luming Institute of Metal Research,Academia Sinica,Shenyang,China. HYDROGEN DISTRIBUTION AND DIFFUSION BEHAVIOUR IN HIGH PRESSURE HYDROGEN CHARGED AUSTENITIC STEEL BY IMMA[J]. Acta Metallurgica Sinica (English Letters), 1989, 2(9): 195-201.

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HYDROGEN DISTRIBUTION AND DIFFUSION BEHAVIOUR IN HIGH PRESSURE HYDROGEN CHARGED AUSTENITIC STEEL BY IMMA

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