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MAGNETIC METHODS FOR CHARACTERISATION OF COLD ROLLED AISI TYPE 304 STAINLESS STEEL

 

作者: T. JAYAKUMAR,   T.D. KOBLE,   W.A. THEINER,   BALDEV RAJ,  

 

期刊: Nondestructive Testing and Evaluation  （Taylor Available online 1993）
卷期: Volume 10, issue 4  

页码: 205-214

 

ISSN:1058-9759

 

年代: 1993

 

DOI:10.1080/10589759308952795

 

出版商: Taylor & Francis Group

 

关键词: Hysteresis loop;Barkhausen noise;cold work;304 stainless steel;a′-martensite

 

数据来源: Taylor

 

摘要:

Magnetic hysteresis loop and magnetic and acoustic Barkhausen noise measurements have been made to characterise strain induceda′-martensite in cold worked AISI type 304 stainless steel. Both magnetic hysteresis and MBN measurements are found to be more sensitive in detection ofa′-martensite as compared to equivalent δ-ferrite and X-ray diffraction measurements. ABN signals could be observed only in the case of 50% cold worked specimens containing high amount ofa′-martensite.

 

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