摘要
Fe-Cr二元系合金经添加适量其它合金元素研制的新型核辐射计数管封接材料显示出优良的冷加工性能。研究中采用了金相、电子探针、X射线衍射、图象分析等分析技术。结果证明,该新型Fe-Cr封接合金良好的冷加工性能同富铌碳化物在晶界析出以及在其抑制下合金具有细小的晶粒组织相关。研究指出为了确保不出现奥氏体和马氏体,该合金最佳热处理温度应在1000～1050℃范围内为宜。
The new sealed material used for nuclear radiation counting tube was developed based on the Fe-Cr alloy added with certain amounts of alloying elements, which exhibits excellent cold workability by us'ng metallographlc, examination, electron probe, method X-ray diffraction and image analysis, it is show that the improved cold workability of the Fe-Cr sealed material is related to rich Nb carbonldc precipitated from grain boundary, thus resultant fine-grain structure in material. Study result also determined that the optimum heat treatment temperature range is 100℃ to 1059℃, in which austeni-tic and martensitic structures fail to form.
出处
《上海钢研》
1994年第3期21-27,共7页
Journal of Shanghai Iron and Steel Research
关键词
封接合金
晶界析出相
晶粒度
sealed alloy phase precipitated on grain boundary grain size
