The microstructure can be formed by a unique method of {TAIL ~ austenization} followed by multi phase cooling in a manner that avoids bainite and pearlite formation and precipitation at {HEAD ~ phase interfaces} 
The microstructure can be formed by a unique method of { TAIL ~ austenization } followed by multi phase cooling in a manner that avoids bainite and pearlite formation and precipitation at { HEAD ~ phase interfaces }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD