Water corrosion of F82H-modified in simulated irradiation conditions by heat treatment
Water corrosion of F82H-modified in simulated irradiation conditions by heat treatment
复制标题
F82H改性在模拟辐照条件下热处理的水腐蚀
DOI：
10.1016/s0022-3115(00)00098-2
复制
发表时间：
2000
影响因子：
3.1
通讯作者：
F. Blázquez
中科院分区：
文献类型：
--
作者：
J. Lapeña;F. Blázquez
本文介绍了在 260°C 的水中对 F82H 进行测试的结果，其中含有 2 ppm H2 并添加了 0.27 ppm LiOH 形式的 Li。对原样材料和焊接材料样本 [TIG 和电子束 (EB)] 进行了均匀腐蚀测试。对原样材料和经过热处理以模拟中子辐照硬化（1075°C/30′ a.c. 和 1040°C/30′+625°C/1 h a.c.）的材料进行了应力腐蚀开裂 (SCC) 测试，硬度值分别为 405 和 270 HV30。 2573 小时测试后的均匀腐蚀结果显示重量损失约为 60 mg/dm2。在恒定载荷下测试的原样材料的紧凑拉伸 (CT) 样本没有出现裂纹扩展。然而，在应力强度因子为 40 至 80 MPa√m 之间的模拟辐照条件下，测得裂纹扩展速率约为 7×10−8m/s。
This paper presents results of testing carried out on F82H in water at 260°C with 2 ppm H2and the addition of 0.27 ppm Li in the form of LiOH. Uniform corrosion tests have been carried out on as-received material and on specimens from welded material [TIG and electron beam (EB)]. Stress corrosion cracking (SCC) tests have been carried out in as-received material and in material heat treated to simulate neutron irradiation hardening (1075°C/30′ a.c. and 1040°C/30′+625°C/1 h a.c.) with hardness values of 405 and 270 HV30, respectively. Results for uniform corrosion after 2573 h of testing have shown weight losses of about 60 mg/dm2. Compact tension (CT) specimens from the as-received material tested under constant load have not experienced crack growth. However, in the simulated irradiation conditions for a stress intensity factor between 40 and 80 MPa√m, crack growth rates of about 7×10−8m/s have been measured.