Study of precipitation behavior at moderate temperatures in 350 maraging steel by eddy current method

被引：12

作者：

Khan, S. H. ^{[1
]}

Khan, A. Nusair ^{[3
]}

Ali, F. ^{[2
]}

Iqbal, M. A. ^{[1
]}

Shukaib, H. K. ^{[4
]}

机构：

[1] Univ Punjab, Dept Phys, Lahore, Pakistan

[2] WSTG III, Rawalpindi, Pakistan

[3] Met Div Rawalpindi, Rawalpindi, Pakistan

[4] MAJ Univ, Islamabad, Pakistan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 474卷 / 1-2期

关键词：

Eddy current testing; Maraging steel; Microstructural characterization; AUSTENITE;

D O I：

10.1016/j.jallcom.2008.06.111

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Maraging steel 350 samples were aged in steps up to 100 h at 470, 510 and 550 degrees C, which resulted in changes in the microstructure of the samples. The changes in microstructure have been analyzed by X-ray diffraction, scanning electron microscope and optical microscope. Electrical resistivity, Vickers's hardness, and eddy current impedance were also monitored. This study revealed that thermal treatment has no effect on grain size, phase transformation, and electrical resistivity, however, hardness and eddy current impedance response was observed. It establishes that eddy current technique is suitable for the characterization of thermal treatment. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：254 / 256

页数：3

共 17 条

[11]

KUDINOV ED, 1970, SVAR PROIZVOD, V12, P39

[12] REVERTED AUSTENITE DURING AGING IN 18NI(350) MARAGING-STEEL [J].