论文部分内容阅读
前言由于锆合金在反应堆运转条件下会迅速吸氢,材料内部将产生片状或针状的氢化锆析出物,从而影响到材料的性能,尤其是材料的低温性能。因此研究氢化物对锆合金性能的影响,对于保证反应堆的安全运行,延长元件寿命都具有重要的意义。本报告主要研究了氢含量及其取向对锆4合金管材机械性能的影响。研究内容是:(1)用实验室渗氢方法研究氢含量为250、500PPm。周向、经向口混乱三种取向对管材在20℃、100℃、200℃、300℃、375℃下的延性及强度的影响。(2)氢含量为250PPm。三种不同取向对400℃,14kg/mm~2应力下锆4合金
Preface Since zirconium alloys rapidly absorb hydrogen during reactor operation, flake or acicular zirconium hydride precipitates are generated inside the material, which affects the material properties, especially the low-temperature properties of the material. Therefore, the study of the influence of hydride on the properties of zirconium alloys is of great significance to ensure the safe operation of the reactor and to extend the life of the components. This report focuses on the influence of hydrogen content and orientation on the mechanical properties of zirconium-4 alloy pipes. The main contents are as follows: (1) Hydrogen content is 250,500ppm by laboratory hydrogen permeation method. Circumferential and radial chaos three kinds of orientation of the pipe at 20 ℃, 100 ℃, 200 ℃, 300 ℃, 375 ℃ Ductility and strength. (2) hydrogen content of 250PPm. Three different orientations of 400 ℃, 14kg / mm ~ 2 stress zirconium 4 alloy