Positron lifetime studies of high purity iron samples with different deformation ways

WU Yichu ZHU Ziying Y Itoh

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Positron lifetime studies of high purity iron samples with different deformation ways

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- Positron lifetime studies of high purity iron samples with different deformation ways
- NUCLEAR TECHNIQUES Issue 3, (1998)
- 作者机构：
  
  1. 中山大学
  2. 日本理化学研究所
  3. 日本东京大学核科学与技术研究中心
  4. 中山大学日本理化学研究所日本东京大学核科学与技术研究中心
- 作者简介：
- 基金信息：
- DOI：
  CLC： O572.2
- Published：01 March 1998
- 稿件说明：
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[1]吴奕初,朱梓英,伊东芳子,伊藤泰男.不同方式变形时高纯铁的正电子寿命研究[J].核技术,1998(03):135-137.

WU Yichu ZHU Ziying Y Itoh. Positron lifetime studies of high purity iron samples with different deformation ways[J]. Nuclear techniques, 1998, (3).
[1]吴奕初,朱梓英,伊东芳子,伊藤泰男.不同方式变形时高纯铁的正电子寿命研究[J].核技术,1998(03):135-137. DOI：

WU Yichu ZHU Ziying Y Itoh. Positron lifetime studies of high purity iron samples with different deformation ways[J]. Nuclear techniques, 1998, (3). DOI：

摘要

采用正电子寿命研究了压缩、冷轧和拉伸变形时高纯铁的正电子寿命随形变量的变化规律（曲线）。实验结果表明：若单考虑某一种方式的形变过程。其结果与前人的结果一致。实验中还发现压缩变形时的曲线明显高于拉伸时的曲线，而冷轧时的曲线介于两者之间。这种曲线的不同可归因于不同方式变形时导致的缺陷结构不同。

Abstract

Variations of positron lifetime parameters with strain for the high purity iron samples with three ways of deformation （compression

cold- rolling and tension） have been investigated. Experimental results showed that when only one way of deformation （e. g. tension） was considered

our results were in accordance with the previous references

lt was found that variations of the mean lifetime with strain （i.e. the （ . ） curve） depended on the way of deformation. The . （ c ） curve for compression was

evidently higher than that for tension

and the . （ . ） curve for cold- rolling was

between them. lt seems that the difference in . （ . ） curves . for various depends .on the types and concentrations of defects.

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