材料导报
材料導報
재료도보
MATERIALS REVIEW
2010年
3期
42-45
,共4页
氦脆抑制%掺杂合金元素法%影响因素
氦脆抑製%摻雜閤金元素法%影響因素
양취억제%참잡합금원소법%영향인소
helium embrittlement resistance%doping alloying elements method%influence factors
聚变堆结构材料极易因α粒子和中子辐照引入大量的He原子而脆化,降低核设施的稳定性和安全性,因此必须提高材料的抗氦脆能力.添加合金元素法是一种有效抑制金属中氦脆的方法.然而,合金元素对金属中的氦脆抑制效果受到原子占位情况、原子尺寸大小、浓度、温度等因素影响.因此,掺杂合金元素时必须考虑合金元素的种类和含量,并辅以一定的热处理.回顾了掺杂合金元素法抑制金属中氦脆的研究进展,简要分析了影响合金元素在金属中氦行为角色的因素.
聚變堆結構材料極易因α粒子和中子輻照引入大量的He原子而脆化,降低覈設施的穩定性和安全性,因此必鬚提高材料的抗氦脆能力.添加閤金元素法是一種有效抑製金屬中氦脆的方法.然而,閤金元素對金屬中的氦脆抑製效果受到原子佔位情況、原子呎吋大小、濃度、溫度等因素影響.因此,摻雜閤金元素時必鬚攷慮閤金元素的種類和含量,併輔以一定的熱處理.迴顧瞭摻雜閤金元素法抑製金屬中氦脆的研究進展,簡要分析瞭影響閤金元素在金屬中氦行為角色的因素.
취변퇴결구재료겁역인α입자화중자복조인입대량적He원자이취화,강저핵설시적은정성화안전성,인차필수제고재료적항양취능력.첨가합금원소법시일충유효억제금속중양취적방법.연이,합금원소대금속중적양취억제효과수도원자점위정황、원자척촌대소、농도、온도등인소영향.인차,참잡합금원소시필수고필합금원소적충류화함량,병보이일정적열처리.회고료참잡합금원소법억제금속중양취적연구진전,간요분석료영향합금원소재금속중양행위각색적인소.
Structural materials in fusion reactor are easily embrittled by He atoms produced from α particles and neutron irradiation,resulting in the degradation of stability and safety in nuclear facilities. Thus,it is necessary to improve the ability of helium embrittlement resistance in materials. Doping alloying elements is an effective method for helium embrittlement resistance. However,the resistant effect will be influenced by site occupancy,atomic size,concentration of alloying elements,temperature and so on. Therefore,the species and amount must be taken into consideration in doping alloying elements,and some thermal treatment should also be supplemented. The research progress of helium embrittlement resistance by doping alloying elements method is reviewed,and the influence factors of the role of alloying elements in helium behaviors in metals are also simply analyzed.
