CAJ | 학술논문

用干法渗氢系统向Zr-4合金管材中渗氢，研究不同渗氢量对其氢化物取向因子测定的影响。通过定氢仪测定渗氢量，金相显微镜观察氢化物的形貌、取向分布及测定氢化物取向因子。结果表明：渗氢量为0.0120％时，氢化物尚未充分长大，不利于计数统计；渗氢量为0.0168％和0.0227％时，管材氢化物取向因子值内外层有明显差别，而两者之间差别不大，能准确反映管材氢化物取向分布；当渗氢量为0.0383％和0.0400％时，氢化物过度长大已掩盖了内外层氢化物取向的差异，不能准确反映管材氢化物取向分布。
용간법삼경계통향Zr-4합금관재중삼경，연구불동삼경량대기경화물취향인자측정적영향。통과정경의측정삼경량，금상현미경관찰경화물적형모、취향분포급측정경화물취향인자。결과표명：삼경량위0.0120％시，경화물상미충분장대，불리우계수통계；삼경량위0.0168％화0.0227％시，관재경화물취향인자치내외층유명현차별，이량자지간차별불대，능준학반영관재경화물취향분포；당삼경량위0.0383％화0.0400％시，경화물과도장대이엄개료내외층경화물취향적차이，불능준학반영관재경화물취향분포。
Hydrogen was penetrated into Zr-4 alloy tubes with dry hydrogen penetration system and the effect of hydro-gen amounts on hydride orientation factor determination was studied .The hydrogen amount was determined by hydro-gen determinator , the morphology , and orientation distribution of hydride were observed by optical microscope .Then the hydride orientation factor was determined .The results show that hydride has not fully grown up yet and is hard to measure when hydrogen amount is 0.012 0%.When the hydrogen amounts are 0.016 8% and 0.022 7%, the hy-dride orientation factors have little difference , but the hydride orientation factors at inner and outer layer have clear difference , which can reflect the tubing hydride orientation distribution accurately .When the hydrogen amounts are 0.038 3%and 0.040 0%, hydrides grow up excessively which covers up the hydride orientation difference at inner and outer layers , can not reflect hydride orientation distribution accurately of tubes .