Magnetic Barkhausen Noise analysis for the assessment of microstructures in heat treated 2.25CR-1Mo and 17-4-PH steels

1996 ◽  
Vol 29 (5) ◽  
pp. 338
1993 ◽  
Vol 26 (3) ◽  
pp. 141-148 ◽  
Author(s):  
D.K. Bhattacharya ◽  
T. Jayakumar ◽  
V. Moorthy ◽  
S. Vaidyanathan ◽  
Baldev Raj

1988 ◽  
Vol 4 (2-3) ◽  
pp. 70-70
Author(s):  
Yasubumi FURUYA ◽  
Heihachi SHIMADA ◽  
Yuichi ITO

2020 ◽  
Vol 87 (12) ◽  
pp. 787-798
Author(s):  
Rahel Jedamski ◽  
Jonas Heinzel ◽  
Maximilian Rößler ◽  
Jérémy Epp ◽  
Jochen Eckebrecht ◽  
...  

AbstractGrinding processes are often the last step in the value-added chain of high-performance hardened steel components. However, thermo-mechanical loads which can take place during the process can have a detrimental effect on the surface integrity of ground parts, which are generally tested by post-process measurements. In the present study, two different approaches for an in-process inspection of the workpiece surface integrity were assessed using magnetic Barkhausen noise analysis during cylindrical grinding of hardened workpieces. The results showed that both measuring systems are able to detect changes in the surface state of workpieces in-process or directly after grinding in the grinding machine. After preparations to protect the sensors from influences during the grinding process, changes in the residual stress state and a decrease of hardness could be reliably detected. Due to constant contact conditions between sensor and workpiece a high reproducibility of the measurements was achieved.


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