Nitrogen determination near surface of nitriding steel using nuclear reaction analysis

Changgeng Liao; Jinzhong Xiang; Yongqiang Wang; Zhihui Ma; Zhihao Zheng

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Nitrogen determination near surface of nitriding steel using nuclear reaction analysis

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- Nitrogen determination near surface of nitriding steel using nuclear reaction analysis
- Nuclear Techniques Vol. 11, Issue 3, (1988)
- 作者机构：
  
  兰州大学原子核研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1988-03
- 稿件说明：
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Changgeng Liao, Jinzhong Xiang, Yongqiang Wang, et al. Nitrogen determination near surface of nitriding steel using nuclear reaction analysis[J]. Nuclear techniques, 1988, 11(3): 55-57,64.
DOI：

Changgeng Liao, Jinzhong Xiang, Yongqiang Wang, et al. Nitrogen determination near surface of nitriding steel using nuclear reaction analysis[J]. Nuclear techniques, 1988, 11(3): 55-57,64. DOI：

摘要

本文研究了利用核反应

N（p

αγ

）

C分析渗氮钢表面氮含量的最佳测试条件。在入射质子能量为1MeV时，分析灵敏度为～0.03%。工厂实际检测结果表明，在渗氮炉中部，

Cr钢渗氮表面的氮含量为（9.1±0.6）%，而上下边沿部位表面氮含量明显降低。对氮的深度分布进行了讨论，核反应分析法对渗氮产品质量的检验和工艺的改进具有实用价值。

Abstract

The optimum conditions of nitrogen determination near the surface of nitriding steel using

N (p

αγ

)

C nuclear reaction have been investigated. The detection limit of nitrogen for nitriding steel is about 0.03wt% at incident proton energy

=1MeV. The practical measurements have shown that the surface nitrogen content is (9.1+0.6) wt% for the 40 Cr steel sample placed in the middle of a nitriding furnace and that is obviously decreased for the samples placed at upper or lower positions near the edge. The depth profile of nitrogen in nitriding steel near the surface is also discussed.

关键词

Keywords

references

F. Alzenberg-Selove , Nucl. Phys. , 11 ( 1959 ), 1 .

F. Alzenberg-Selove , Nucl. Phys. , A449 ( 1986 ), 1 .

A. Anttila et al . , J. Radioanal. Chem. , 62 ( 1981 ), 293 .

G. Demortier et al . , J. Radioanal. Chem. , 45 ( 1978 ), 459 .

J. Räisanen et al . . Nucl. Instr. Meth. , 205 ( 1983 ), 259 .

R. Hänninen and J. Räisanen , Nucl. Instr. Meth. , B5 ( 1984 ), 34 .

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