Characterisation of microstructural evolution during thermomechanical processing of 15Cr-15Ni-2.2Mo-Ti modified austenitic stainless steel (alloy D9) using ultrasonic measurements

被引：2
作者：
Mandal, S. [1 ]
Kumar, A. [1 ]
Sivaprasad, P. V. [1 ]
Jayakumar, T. [1 ]
Raj, B. [1 ]
机构：
[1] Indira Gandhi Ctr Atom Res, Met & Mat Grp, Kalpakkam 603102, Tamil Nadu, India
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2007年 / 23卷 / 11期
关键词：
austenitic stainless steel; dynamic recrystallisation; ultrasonic attenuation; C-scan imaging; grain size;
D O I：
10.1179/174328407X161097
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ultrasonic attenuation measurements have been used for imaging the variations in the grain size in 15Cr-15Ni-2.2Mo-Ti modified (D9) austenitic stainless steel specimens thermomechanically processed at 1273 K for different strain amplitudes in the range of 0.1 to 0.5. Ultrasonic attenuation measurements could identify various deformation zones such as macroscopic intense shear zones, moderate deformation zones and dead metal zones in the specimen strained to 0.5 exhibiting dynamic recrystallisation. The initiation of the recrystallisation and skew in the loading during the thermomechanical processing could also be identified using ultrasonic attenuation measurements.
引用
收藏
页码：1381 / 1386
页数：6
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