Transformation of reverted austenite in a maraging steel under external loading: an in-situ X-ray diffraction study using high-energy synchrotron radiation

被引：12
|
作者：
Zickler, Gerald A. [1 ]
Schnitzer, Ronald [1 ]
Hochfellner, Rainer [1 ]
Lippmann, Thomas [2 ]
Zinner, Silvia [3 ]
Leitner, Harald [1 ]
机构：
[1] Univ Leoben, Dept Phys Met & Mat Testing, Christian Doppler Lab Early Stages Precipitat, A-8700 Leoben, Austria
[2] GKSS Forschungszentrum Geesthacht GmbH, Geesthacht, Germany
[3] Bohler Edelstahl GmbH & Co KG, Kapfenberg, Austria
来源：
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2009年 / 100卷 / 11期
关键词：
Maraging steel; Martensitic phase transformation; X-ray diffraction; Synchrotron radiation; INDUCED MARTENSITIC-TRANSFORMATION; RETAINED AUSTENITE; MECHANICAL-PROPERTIES; TRIP; STABILITY; BEHAVIOR; DEFORMATION; MICROSTRUCTURE; EVOLUTION; CARBON;
D O I：
10.3139/146.110219
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Reverted austenite strongly influences the mechanical properties of maraging steels. Therefore, X-ray diffraction using high-energy synchrotron radiation was applied for in-situ studying of the reverse martensitic phase transformation under external load in a PH 13-8 Mo maraging steel. The volume fraction of austenite, the domain size of the crystallites, and the lattice parameters were determined as function of strain for differently aged samples. It is shown that the reverted austenite is not mechanically stable under external load. Scanning of the fractured sample along the axial direction shows that the volume fraction of the austenite and the domain sizes strongly depend on the distance from the point of fracture initiation.
引用
收藏
页码：1566 / 1573
页数：8
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