Thermal desorption of helium from reactor steel
Thermal desorption of helium from reactor steel
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DOI：
10.1007/s10512-011-9404-6
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发表时间：
2011-07
期刊：
影响因子：
0.5
通讯作者：
Kyi Zin Oo;I. Chernov;M. Stal’tsov;B. Kalin;A. Kalashnikov;S. Binyukova;A. K. Zaw;V. S. Ageev;A. A. Nikitina-A.
中科院分区：
文献类型：
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作者：
Kyi Zin Oo;I. Chernov;M. Stal’tsov;B. Kalin;A. Kalashnikov;S. Binyukova;A. K. Zaw;V. S. Ageev;A. A. Nikitina-A.
热脱附用于研究在20和650°C下在反应器铁素体-马氏体EP-450、Eurofer-97、弥散硬化EP-450、Eurofer-97和EK-164奥氏体钢中离子注入氦的行为细节。与EP-450和Eurofer-97钢的热脱附谱相比，室温下，尤其是650°C下，氦注入后，弥散硬化EP-450和Eurofer-97钢的氦释放温度区间较宽。在由分散氧化物Y2 O3硬化的钢中，在热脱附光谱中的主要最大值之后在高温下释放大量的氦，这是由于在不相干的颗粒-基体边界处形成具有与颗粒的高结合能的气泡。与回火状态下辐照的铁素体-马氏体钢相比，EK-164奥氏体钢的热脱附谱更为复杂，这是由于冷变形引入的组织缺陷导致了氦的多阶段释放。
Thermal desorption was used to study the behavioral particulars of the ion-implanted at 20 and 650°C helium in reactor ferrite-martensite EP-450, Eurofer-97, dispersion-hardened EP-450, Eurofer-97, and EK-164 austenitic steel. It is established that compared with the thermal desorption spectrum of EP-450 and Euroffer-97 steel the temperature interval for helium release from dispersion-hardened EP-450 and Eurofer 97 steels is wider for helium implantation at room temperature and especially at 650°C. In steel hardened by disperse oxides Y2O3, a substantial amount of helium is released at high temperatures after the main maximum in the thermal desorption spectrum as a result of the formation at the incoherent particle–matrix boundary of bubbles with high bonding energy with particles. In contrast to the ferrite-martensite steel irradiated in the temper state, the thermal desorption spectrum of EK-164 austenitic steel is more complex because of the multiple stage helium release due to the structural defects introduced by cold deformation.