Thermal stability of nanocrystalline Fe-Zr alloys

被引：193

作者：

Darling, K. A. ^{[2
]}

VanLeeuwen, B. K. ^{[1
]}

Koch, C. C. ^{[1
]}

Scattergood, R. O. ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA

[2] USA, Res Lab, Weap & Mat Res Directorate, RDRL WMM B, Aberdeen Proving Ground, MD 21005 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2010年 / 527卷 / 15期

基金：

美国国家科学基金会;

关键词：

Mechanical alloying; Nanostructured materials; Grain growth; GRAIN-GROWTH; SOLUTE SEGREGATION; SIZE; STABILIZATION; NANOSTRUCTURES; TIO2; TEM; NI;

D O I：

10.1016/j.msea.2010.02.043

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Fe-Zr nanocrystalline alloys with an as-milled grain size less than 10 nm were synthesized by ball milling. The microstructure changes due to annealing were characterized using X-ray line broadening, microhardness, focused ion beam channeling contrast imaging, and transmission electron microscopy (TEM). Additions of 1/3 to 4 at.% Zr stabilized nanocrystalline grain sizes at elevated annealing temperatures compared to pure Fe. With 4 at.% Zr, a fully nanocrystalline microstructure with a TEM grain size of 52 nm was retained at temperatures in excess of 900 degrees C. Alloys with lower Zr contents showed less stability, but still significant compared to pure Fe. Bimodal nano-micro grain size microstructures were also observed. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：3572 / 3580

页数：9

共 40 条

[1]

ABE YR, 1992, MATER SCI FORUM, V88, P513, DOI 10.4028/www.scientific.net/MSF.88-90.513

[2]

ABE YR, 1992, MATER RES SOC SYMP P, V238, P721

[3]

[Anonymous], 2009, Transmission Electron Microscopy: A Textbook for Materials Science

[4]

[Anonymous], COHESION METALS

[5] Segregation inhibited grain coarsening in nanocrystalline alloys [J].

Beke, DL ;

Cserháti, C ;

Szabó, IA .

JOURNAL OF APPLIED PHYSICS, 2004, 95 (09) :4996-5001

[6]

Birringer R., 1989, Mater. Sci Eng. A, V33, P117

[7] AN INSITU TEM STUDY OF THE THERMAL-STABILITY OF NANOCRYSTALLINE NI-P [J].

BOYLAN, K ;

OSTRANDER, D ;

ERB, U ;

PALUMBO, G ;

AUST, KT .

SCRIPTA METALLURGICA ET MATERIALIA, 1991, 25 (12) :2711-2716

[8]

CULLITY BD, 2001, ELEMENTS XRAY DIFFRA, P281

[9] Grain-size stabilization in nanocrystalline FeZr alloys [J].

Darling, Kris A. ;

Chan, Ryan N. ;

Wong, Patrick Z. ;

Semones, Jonathan E. ;

Scattergood, Ronald O. ;

Koch, Carl C. .

SCRIPTA MATERIALIA, 2008, 59 (05) :530-533

[10] Microstructural evolution during the heat treatment of nanocrystalline alloys [J].

Detor, A. J. ;

Schuh, C. A. .

JOURNAL OF MATERIALS RESEARCH, 2007, 22 (11) :3233-3248

← 1 2 3 4 →