FERRITE AND PERLITE HARDENING IN COPPER-ALLOYED STEELS AND IRONS

被引：3

作者：

Bataev, I. A. ^{[1
]}

Stepanova, N. V. ^{[1
]}

Bataev, A. A. ^{[1
]}

Razumakov, A. A. ^{[1
]}

机构：

[1] Novosibirsk State Tech Univ, Novosibirsk, Russia

来源：

RUSSIAN PHYSICS JOURNAL | 2017年 / 60卷 / 06期

基金：

俄罗斯科学基金会;

关键词：

steel; iron; perlite; ferrite; epsilon-copper; nanoparticles; microhardness;

D O I：

10.1007/s11182-017-1171-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The paper presents transmission electron microscopy (TEM) investigations of epsilon-copper formation in ferritic grains and perlitic colonies of irons and steels alloyed with copper. It is shown that copper-enriched inclusions substantially differ in size and shape. The most disperse are particles produced by decomposition of alpha-phase in iron due to oversaturated copper. The size of particles appeared after austenite decomposition is approximately an order of magnitude larger. After the formation of epsilon-copper particles in gamma-phase, they incorporate both in ferrite and partially in cementite laminas during the formation of lamellar perlite. Fine particles of epsilon-copper locating inside ferritic grains and in ferritic layers in perlite, restrain the dislocation mobility and have an additional hardening effect on iron-carbon alloys.

引用

页码：1017 / 1021

页数：5

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