MICROSTRUCTURAL PHASE-STABILITY OF CU-BASE ALLOYS UNDER 300 KEV CU+ ION IRRADIATION

被引：9

作者：

WANDERKA, N ^{[1
]}

YUAN, Y ^{[1
]}

JIAO, L ^{[1
]}

WAHI, RP ^{[1
]}

WOLLENBERGER, H ^{[1
]}

机构：

[1] CENT IRON & STEEL RES INST, BEIJING, PEOPLES R CHINA

来源：

JOURNAL OF NUCLEAR MATERIALS | 1992年 / 191卷

关键词：

D O I：

10.1016/0022-3115(92)90696-I

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stability of particles of a second phase in Cu-base alloys under irradiation with 300 keV Cu+ ions has been investigated. The irradiations were carried out in the temperature range of 293 to 803 K at displacement rates of 2.3 X 10(-5) and 2.3 X 10(-2) dpa/s. The irradiation dose was between 0.01 and 30 dpa. Transmission electron microscopy was used to study the microstructure. In the present paper we report the results obtained on Cu-Cr-Zi-Si and Cu-Al25 alloys. The precipitates of the hardening phase in the Cu-CT-Zi-Si alloy are unstable under the irradiation. Their disappearence at room temperature is much more effective than at 803 K. Irradiation of the Cu-Al25 caused significant changes in the oxide particle size distribution. Particles smaller than 10 nm in diameter dissolved rapidly, whereas the big ones fragmented into smaller particles.

引用

页码：1356 / 1359

页数：4

共 12 条

[1]

ANDERSON KR, 1990, PNLSA17555 REP

[2] A MONTE-CARLO COMPUTER-PROGRAM FOR THE TRANSPORT OF ENERGETIC IONS IN AMORPHOUS TARGETS [J].