摘要
运用非平衡态统计物理学方法建立了辐照金属氦脆断裂的统计理论.利用辐照金属中氦泡密度分布函数和氦泡的平均断裂半径,讨论辐照金属氦脆断裂的宏观性质,包括材料的断裂几率,可靠性、材料的肿胀率、材料寿命及断裂延伸率.得到理论与实验结果较好的符合。
Nonequilibrium statistical theory is used to establish the statistical theory for helium embrittlement of irradiated metals. From the density distribution function of helium bubbles and the average fracture radius of helium bubbles derived previously, the macroscopic properties of irradiated metals in helium embrittlement fracture are discussed, including the fracture probability and reliability of the metals, swelling, lifetime and fracture strain of the metals. Good agreement between the theoretical results and the experimental data demonstrates the correctness of the proposed theory.
出处
《北京理工大学学报》
EI
CAS
CSCD
1993年第2期133-139,共7页
Transactions of Beijing Institute of Technology
关键词
辐照
金属
氢脆
脆化
非平衡统计
radiation effects
reliability/fracture probability
swelling
fracture strain
