HARDNESS TESTING OF STEELS

PCT No. PCT/GB94/02337 Sec. 371 Date Jun. 19, 1996 Sec. 102(e) Date Jun. 19, 1996 PCT Filed Oct. 24, 1994 PCT Pub. No. WO95/12821 PCT Pub. Date May 11, 1995A method of estimating mechanical hardness of a steel by the measurement of a plurality of magnetic parameters of the steel, comprises the steps...

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Hauptverfasser:	STANBURY, HUGH, JOHN, MOSES, ANTHONY, JOHN, MEYDAN, TURGUT, SALMASI, ZAREH, SOGHOMONIAN, PAGE, JAMES, HERBERT, RICHARD, BECKLEY, PHILIP
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Zusammenfassung:	PCT No. PCT/GB94/02337 Sec. 371 Date Jun. 19, 1996 Sec. 102(e) Date Jun. 19, 1996 PCT Filed Oct. 24, 1994 PCT Pub. No. WO95/12821 PCT Pub. Date May 11, 1995A method of estimating mechanical hardness of a steel by the measurement of a plurality of magnetic parameters of the steel, comprises the steps of estimating for each parameter one or more probable hardness ranges by reference to a stored set of hardness ranges and associated parameters and combining these estimates to provide an estimate of the hardness range. Preferably three parameters are measured and these may be coercivity, power loss and permeability. These parameters may be measured simultaneously.