Research on Phases and Morphology of Sm2Fe17 Melt-Spun Ribbon

被引：0

作者：

Liu, Kun ^{[1
]}

Wang, Shuhuan ^{[1
,2
]}

Feng, Yunli ^{[1
]}

Zhang, Yikun ^{[1
]}

机构：

[1] College of Metallurgy and Energy, North China University of Science and Technology, Tangshan,063210, China

[2] Tangshan Key Laboratory of Special Metallurgy and Material Manufacture, Tangshan,063210, China

来源：

Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2020年 / 49卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Agglomeration - Morphology - Iron alloys - Speed - High resolution transmission electron microscopy - Samarium alloys - X ray diffraction - Wheels - Scanning electron microscopy - Quenching;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effects of the quenching speed on the phase composition and morphology of the Sm-Fe alloy ribbons were analyzed by X-ray diffraction (XRD), optical microscope (OM), scanning electron microscope (SEM) and high-resolution transmission electron microscope (HRTEM). With the increase of wheel speed, the size of alloy ribbons decreased along the width and thickness direction firstly, and that existed stably in the thickness direction even when the speed increased sequentially. The size of agglomeration decreased in the free surface, which was 0.5~3 µm when the quenching speed was increased up to 36 m/s. The XRD and EDS results show that there are three different phases in the ribbons: Sm2Fe17, α-Fe and Sm-rich phase. The grain size of Sm2Fe17 phase in the ribbons is on the sub-micron scale (dm≈340 nm, 36 m/s), which is restricted not only by the wheel speed but also by the bare number of elements. Copyright © 2020, Northwest Institute for Nonferrous Metal Research. Published by Science Press. All rights reserved.

引用

页码：3796 / 3802