REVERSE MARTENSITIC PHASE-TRANSFORMATION INDUCED IN NB-CO MULTILAYERS BY ION IRRADIATION

被引：18

作者：

LIU, BX ^{[1
]}

ZHANG, ZJ ^{[1
]}

机构：

[1] CCAST,WORLD LAB,CTR CONDENSED MATTER & RADIAT PHYS,BEIJING 100080,PEOPLES R CHINA

来源：

JOURNAL OF MATERIALS RESEARCH | 1994年 / 9卷 / 02期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1557/JMR.1994.0357

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A reverse martensitic phase transformation was observed in Nb-enriched Nb-Co multilayers induced by room temperature 200 keV xenon ion mixing. Further experiments revealed that this bcc-fcc transition proceeds in two steps, i.e., bcc-hcp and hcp-fcc. A crystallographic model is proposed to explain the two-step transition through shearing and sliding, which are mediated by irradiation-induced defects and strain in the films. In addition, the existence of the hcp and fee metastable states in the Nb-Co system was confirmed by high-temperature solid state interdiffusion of the corresponding multilayers.

引用

页码：357 / 361

页数：5

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