Defect configuration in Ni-20Al-30Fe alloys studied by the positron annihilation  technique

您当前的位置：

首页 >

文章列表页 >

Defect configuration in Ni-20Al-30Fe alloys studied by the positron annihilation technique

更新时间：2021-04-09

- Defect configuration in Ni-20Al-30Fe alloys studied by the positron annihilation technique
- NUCLEAR TECHNIQUES Issue 10, (1994)
- 作者机构：
  
  1. 中国科学院金属研究所
  2. 中国科学院国际材料物理中心
  3. 中国科学院金属研究所中国科学院国际材料物理中心
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG131
- Published：01 October 1994
- 稿件说明：
移动端阅览
[1]邓文,熊良钺,王淑荷,郭建亭,龙期威.用正电子湮没技术研究Ni－20Al－30Fe合金中的缺陷组态[J].核技术,1994(10):594-596.

Defect configuration in Ni-20Al-30Fe alloys studied by the positron annihilation technique[J]. Nuclear techniques, 1994, (10).
[1]邓文,熊良钺,王淑荷,郭建亭,龙期威.用正电子湮没技术研究Ni－20Al－30Fe合金中的缺陷组态[J].核技术,1994(10):594-596. DOI：

Defect configuration in Ni-20Al-30Fe alloys studied by the positron annihilation technique[J]. Nuclear techniques, 1994, (10). DOI：

摘要

测量了铸态、热轧和定向结晶三种不同工艺的Ｎｉ－２０Ａｌ－３０Ｆｅ的ｅ＋寿命谱：ｅ＋这三种试样的缺陷中的寿命十分相近．说明ｅ＋在该合金的空位、应错和晶界中的寿命相近．合金晶界缺陷处的自由电子密度和空位处的相当。在ＮｉＡｌ合金中加入Ｆｅ元素后．改善了合金的晶界结构．

Abstract

Positron lifetime spectra have been measured for monodirectional crystal

as-cast polycrystal and hot-rolled polycrystal of Ni-20Al-30Fe alloys.τ2 values for these samples are similar

indicating that lifetime of the positron annihilated in grain boundary is similar to that in a vacancy or a dislocation

and density of free electrons in grain boundaries is nearly equal to that in vacancies.It is concluded that the structure of grain boundaries in NiAl alloy can be improved by alloying with Fe.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on the microstructure and defects of Al₂O₃/ZrO₂ nano-composites by positron lifetime spectroscopy

Positron annihilation study of defects in fission neutron irradiated GaAS

A study of defects and hydrogen behavior in the high-speed Ni selective plating layer by positron annihilation

An investigation of defects in Fe₇₀ Cr₁₈ Mo₂ Si₁B₉ microcrystal alloy by positron annihilation technique

Application of positron annihilation to study the effect of calcium oxide addition on the sintering process of alumina nanoceramics

Related Author

石见见

赵文增

郭雪莲

王柱

吴奕初

XU Xuehui SHI Jianjian ZHAO Wenzeng GUO Xuelian WANG Zhu WU Yichu

LI Anli LUO Qi FAN Zhiguo ZHENG Shengnan GOU Zhenhui WANG Chunrui QIAN Jiayu ZHU Shengyun

罗起

Related Institution

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

China Institute of Atomic Energy

Shanghai Iron and Steel R.search Institute

Shanghai Iron and Steel Research Institute

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

AI问答

Address：2019 Jialuo Road, Jiading, Shanghai, China Postal code：201800
Tel：021-39194977 Email：LHB@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：880771 Visits Today：298

⁰