Investigation of surface modification of the ion-implanted GH903 alloy

PENG Yuqing

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Investigation of surface modification of the ion-implanted GH903 alloy

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- Investigation of surface modification of the ion-implanted GH903 alloy
- NUCLEAR TECHNIQUES Issue 1, (1998)
- 作者机构：
  
  1. 中国科学院上海原子核研究所
  2. 中国科学院核分析技术开放研究实验室
  3. 上海第五钢铁厂钢铁研究所
  4. 中国科学技术大学
- 作者简介：
- 基金信息：
- DOI：
  CLC： TJ503.3
- Published：01 January 1998
- 稿件说明：
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[1]彭郁卿,朱金元,翁惠民.GH903合金的离子注入表面改性研究[J].核技术,1998(01):1-6.

PENG Yuqing. Investigation of surface modification of the ion-implanted GH903 alloy[J]. Nuclear techniques, 1998, (1).
[1]彭郁卿,朱金元,翁惠民.GH903合金的离子注入表面改性研究[J].核技术,1998(01):1-6. DOI：

PENG Yuqing. Investigation of surface modification of the ion-implanted GH903 alloy[J]. Nuclear techniques, 1998, (1). DOI：

摘要

用离子注入、氧化和慢正电子束分析研究了ＧＨ９０３合金的氧化性能的改善与微观作用机理。注入的Ｃｒ＋．Ｙ＋的能量均为６０ｋｅＶ，注入的剂量分别由１ｘ１０１７．ｃｍ－２（Ｃｒ＋）、１ｘ１０１５Ｃｍ－２（Ｙ＋）和［１ｘ１０１５．ｃｍ－２（Ｙ＋）＋１ｘ１０１７·ｃｍ－２（Ｃｒ＋）］。结束显示，注入样品与未样品相比。氧化增重分别减少４．８％（注Ｃｒ＋）、２４．２％（注Ｙ＋）和３２．３％（注Ｙ＋＋Ｃｒ＋）。这表明合金氧化性能改善的作用机理主要是注入离子对样品浅表层内缺陷的填充与退火。同时，注入元素的化学性能和使样品表面更致密也起了重要作用。

Abstract

Improvement of oxidation properties of the ion-implanted GH903 alloy wasinvestigated by the slow positron beam analysis. Energy of Cr+ or Y+ ions was60keV and the implanted doses were 1×1015·cm-2（Y+）

1×1017·cm-2（Cr+）and 1×1015·cm-2（Y+）+1×1017·cm-2（Cr+）

respectively. Compared with the orginalsamples

the oxidizing weight-increment of the sample implanted by Cr+

Y+ and（Y++Cr+）ions were decreased 4.8%

24.2%and 32.3%

respectively.Mechenism ofthe modified oxidation is disscussed in terms of filling and annealing of defects in thenear-surface

chemical characteristics of the implanted elements and forming morecompact surface by ion implantation.

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