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利用透射电子显微镜分析了０３—０５Ｔｍ温区（Ｔｍ为材料溶点）３１６Ｌ奥氏体不锈钢经高剂量氦离子辐照后辐照损伤峰区氦泡的形成行为实验结果支持氦泡的双原子形核模型，并证实氦泡的形成主要受制于自间隙子／氦置换机制扩散材料中高密度位错的存在显著增强氦泡形核并抑制氦泡生长与前人低剂量辐照实验结果的比较表明０３—０５Ｔｍ温区氦泡形核机制不随辐照剂量或剂量率发生显著变化．
Transmission electron microscopy was used to analyze the formation behavior of helium bubbles in the peak area irradiated by high dose of helium ions in the 316L austenitic stainless steel in the 03-05Tm temperature range (Tm is the melting point of the material). Experimental results support helium Bubble and confirmed that the formation of helium bubble is mainly controlled by the diffusion from the spacer / helium substitution mechanism. The existence of high density dislocations in the material significantly enhances the helium bubble nucleation and inhibits the growth of helium bubbles. Compared with the low dose The comparison of the results of the irradiation experiments shows that the nucleation mechanism of the helium bubble in 03-05Tm temperature region does not change significantly with the irradiation dose or dose rate.