在高温水冷却剂或高温有机物冷却剂中,锆及锆合金要吸收一部分溶解到冷却剂中的或在金腐蚀过程中释放出来的氢。由于它具有大的流动性,因此,这种氢易于扩散到金属中去。开始时,它扩散进α相金属区,一旦浓度较高,就会在金属基体中形成氢化物沉淀。众所周知,由于这种吸氢现象,锆和锆合金可能遭到严重的氢脆损害。为了控制这种 In hot or cold organic coolant, zirconium and zirconium alloys absorb a portion of the hydrogen dissolved in the coolant or released during gold corrosion. Because of its large fluidity, hydrogen readily diffuses into the metal. Initially, it diffused into the alpha phase metal zone and, once in higher concentrations, formed hydride deposits in the metallic matrix. It is well-known that zirconium and zirconium alloys may be severely damaged by hydrogen embrittlement due to this hydrogen absorption. In order to control this