摘要
本文综述了十余年来国内、外多晶Ni_3Al加硼致塑现象和机理的研究概况。讨论了多晶Ni_3Al的内禀脆性,硼在多屍Ni_3Al中的存在状态与作用,硼对晶界区化学有序的影响,硼致多晶Ni_3Al合金塑性机理的实验结果与观点,并提出了有待进一步研究的问题。
The article reviewed the study works about the phenomenon and mechanism that addition of boron induced ductility to polycrystalline Ni_3Al in our country and abroad in the last years. Discussed the polycrystalline Ni_3Al intrinsic brittleness, the state and action of boron in it, the effect of boron to the chemical ordered grain boundary, expriment result and viewpoint of boron duetilizing mechanism on Ni_3Al polyerystal and point out the works which need us to go on study.
出处
《材料科学与工程》
CSCD
1993年第3期37-40,31,共5页
Materials Science and Engineering
关键词
塑性
晶界
合金
金属间化合物
Ni_3Al
boron induced ductility
grain boundary
