Diffusive behavior of boron in Ni<sub>3</sub>Al（0.98at%B）investigated by position annihilation technique

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Diffusive behavior of boron in Ni₃Al（0.98at%B）investigated by position annihilation technique

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- Diffusive behavior of boron in Ni₃Al（0.98at%B）investigated by position annihilation technique
- NUCLEAR TECHNIQUES Issue 3, (1995)
- 作者机构：
  
  1. 中国科学院金属研究所
  2. 中国科学院金属研究所材料疲劳与断裂国家重点实验室
  3. 中国科学院金属研究所中国科学院金属研究所材料疲劳与断裂国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ021.4
- Published：01 March 1995
- 稿件说明：
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[1]李钢,邓文,熊良钺,郭建亭,王中光.Ni_3Al（0．98at％B）中硼原子扩散行为的正电子湮没研究[J].核技术,1995(03):148-150.

Diffusive behavior of boron in Ni₃Al（0.98at%B）investigated by position annihilation technique[J]. Nuclear techniques, 1995, (3).
[1]李钢,邓文,熊良钺,郭建亭,王中光.Ni_3Al（0．98at％B）中硼原子扩散行为的正电子湮没研究[J].核技术,1995(03):148-150. DOI：

Diffusive behavior of boron in Ni₃Al（0.98at%B）investigated by position annihilation technique[J]. Nuclear techniques, 1995, (3). DOI：

摘要

用正电子湮没技术研究了Ｎｉ３Ａｌ（０．９８ａｔ％Ｂ）合金经高温均匀化处理后，在空冷、炉冷、水冷条件下硼原子的扩散行为。结果表明，炉冷处理的合金中扩散至晶界的硼原子最多，并有微量硼化物在晶界处析出；水冷处理时扩散至晶界的硼原子最少、为使既有较多的硼原子扩散至晶界、又无硼化物在晶界析出，宜采用高温均匀化空冷的热处理工艺。

Abstract

The diffusive behavior of B atoms in Ni3Al（0.98at%B） alloy has been investigated by positron annihilation technique after the alloy was homogenized at high temperature and followed by quenching in water

cooling in air and cooling in furnace respectively. It was shown that the amount of B atoms segregating to grain boundaries for the alloy cooled in furnace was the most

whereas the least for that quenched in water

and that a little of boride was formed at the grain boundaries in the former case.In order to make the alloy with moderate segregation of B atoms to grain boundaries and without boride formed there

the alloy was recommended to be cooled in air after being homogenized at high temperature.

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GUO Jianting LI Yufang XIONG Liangyue

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Related Institution

Institute of Metal Research, the Chinese Academy of Sciences

中国科学院金属研究所高温合金研究部

School of Physics and Technology, Hubei Key Laboratory of Nuclear Solid State Physics, Wuhan University

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School of Physics and Technology, Hubei Key Laboratory of Nuclear Solid State Physics, Wuhan University

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Diffusive behavior of boron in Ni3Al（0.98at%B）investigated by position annihilation technique

DOI：

摘要

Abstract

关键词

Keywords

references

Diffusive behavior of boron in Ni₃Al（0.98at%B）investigated by position annihilation technique