论文部分内容阅读
全苏国家新标准9903—81《ЕСЗКС高强度钢和高强度合金,加速腐蚀开裂试验方法》为连续测定裂纹的长度及其增长速度,推荐了测定带有裂纹的试样中心部位电位的电桥示意图(图1)。承受拉力 P 或弯矩 M 的试样1被固定在与施力装置中绝缘的夹头上,并将其压入电化学槽2内。从有一极接地的稳压电源3输出密度为0.01～0.1安/毫米~2的直流电流经电化
New national standard for the whole country 9903-81 “ЕСЗКС high-strength steel and high-strength alloys, accelerated corrosion cracking test method” In order to continuously determine the length of the crack and its growth rate, recommended to determine the crack with the central part of the electric potential of the bridge Schematic (Figure 1). The specimen 1, which receives the tensile force P or the bending moment M, is fixed to a collet which is insulated from the force applying means and pressed into the electrochemical cell 2. From a very grounded power supply 3 output density 0.01 ~ 0.1A / mm ~ 2 DC current through the electrochemical