The Zr-1.0Sn-0.25Nb-0.2Fe-0.1Cr alloys are prepared by low temperature processing (LTP) and high temperature processing (HTP), respectively. The microstructure, aqueous corrosion behavior and hydrogen uptake of the two different samples are investigated. The results show that higher hot rolling temperature causes the growth of the second phase particles (SPPs), which remain in the final microstructure of the Zr matrix. Presence of large SPPs promotes the formation and propagation of cracks in the oxide scale, leading to the higher corrosion rate and higher hydrogen uptake fraction of the HTP samples than LTP samples in the later stage of the corrosion test.

Zr-1.0Sn-0.25Nb-0.2Fe-0.1Cr合金分别通过低温加工(LTP)和高温加工(HTP)制备。研究了两种不同样品的微观结构、水腐蚀行为和吸氢量。结果表明，较高的热轧温度会导致第二相颗粒 (SPP) 的生长，这些颗粒保留在 Zr 基体的最终显微组织中。大 SPP 的存在促进了氧化皮中裂纹的形成和扩展，导致在腐蚀试验后期，HTP 样品的腐蚀速率和吸氢率高于 LTP 样品。