“…4,5) The condition of RH formation is an important factor to assess the integrity of fuel rods, hence both the experimental and theoretical studies on the stress reorientation of hydrides have been conducted. [6][7][8][9][10][11][12][13] These studies have indicated that several factors such as texture, [6][7][8][9] temperature, 6,7) strength, 10,11) hydrogen concentration, 6,7,12) grain size, 9,10) thermal cycling 12) and cold-work 9,13) affected the stress reorientation of hydrides in zirconium alloys. This variety of factors requires systematic measurements to elucidate the effect of each factor and the correlation between the factors.…”