TRANSMISSION ELECTRON-MICROSCOPE INVESTIGATIONS OF THE STRUCTURE OF COPPER PRECIPITATES IN THERMALLY-AGED FE-CU AND FE-CU-NI

被引：339

作者：

OTHEN, PJ ^{[1
]}

JENKINS, ML ^{[1
]}

SMITH, GDW ^{[1
]}

PHYTHIAN, WJ ^{[1
]}

机构：

[1] AEA TECHNOL,HARWELL LAB,OXFORD OX11 0RA,ENGLAND

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1991年 / 64卷 / 06期

关键词：

D O I：

10.1080/09500839108215121

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conventional transmission electron microscopy (TEM) and high-resolution electron microscopy (HREM) experiments have been carried out on thermally-aged binary Fe 1.30 wt% Cu and ternary Fe 1.28 wt% Cu 1.43 wt.% Ni alloys to study the structure of small (7-15 nm) copper precipitates in the alpha-Fc matrix. The experiments show that the precipitates have a twinned 9R close-packed structure, rather than the expected f.c.c. structure. It is believed that this structure is generated initially by a martensitic transformation from the metastable b.c.c. phase.

引用

页码：383 / 391

页数：9

共 16 条

[1]

BUSWELL JT, 1988, ASTM STP, V1046, P127

[2]

CHEN FR, 1990, 12TH P INT C EL MICR, V4, P314

[3] PHASE-TRANSFORMATIONS IN METASTABLE BETA' CUZN ALLOYS .1. MARTENSITIC TRANSFORMATIONS [J].