THE EFFECT OF HELIUM-ATOMS ON RADIATION-INDUCED SEGREGATION AND PRECIPITATION IN AL-ZN ALLOYS

被引：4

作者：

EZAWA, T ^{[1
]}

TANIMURA, J ^{[1
]}

TANABE, T ^{[1
]}

FUJITA, FE ^{[1
]}

机构：

[1] OSAKA UNIV,FAC ENGN,DEPT NUCL ENGN,SUITA,OSAKA 565,JAPAN

来源：

JOURNAL OF NUCLEAR MATERIALS | 1991年 / 179卷

关键词：

D O I：

10.1016/0022-3115(91)90269-D

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Al-4.0 at% Zn alloys were irradiated by 25 keV He+, 20 keV D+ ions and 2 MeV electrons at temperatures from 300 to 573 K. After the irradiation, the foil specimens were observed by electron microscopy and examined by EDXS. The He+ irradiation showed radiation-induced heterogeneous precipitation at grain boundaries at 453 K, while the electron irradiation showed homogeneously induced precipitation at the same temperature. Radiation-induced segregation to grain boundaries was observed at 453 K, and the amount of the segregation increased in this order: electron, D+ and He+ irradiations. The heterogeneous-induced precipitation by the He+ irradiation is thought to be caused by the enhancement of the solute segregation to grain boundaries.

引用

页码：1038 / 1041

页数：4

共 6 条

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