Fe-Mo-B-CSINTERED STE ELS PRODUCED  BY  ADDITI ON  OF  MASTER ALLOY  POWDERS

Acta Metallurgica Sinica (English Letters) ›› 1999, Vol. 12 ›› Issue (5): 1198-1201.

• Research paper • Previous Articles Next Articles

Fe-Mo-B-CSINTERED STE ELS PRODUCED BY ADDITI ON OF MASTER ALLOY POWDERS

Z. M. Xiu1) , L. X. Ding2) , Z. J. Zhao3) , J. You3) , Z. Zhang3) , F. M. He1)and X. D. Sun1)1) School of Materials and Metallurgy , Northeastern University , Shenyang 110006 , China2) Department of Materials , School of Mechanical Engineering , Shenyang University , Shenyang 110044 , China3) Liaoning Analyzing and Testing Research Center , Shenyang 110015 , China

Received:1999-10-25 Revised:1999-10-25 Online:1999-10-25 Published:2009-10-10

Abstract

Abstract: Addition of Fe B C and Fe Mo B C m aster alloy pow ders to Fe Mo B Csintered steels can ac tivate the sintering process by liquid phase sintering . The for m ation of liquid ( α- Fe + ( Fe , Mo) 2 B+ Fe3( B, C) → L) i m proves m echanical properties of the steels , and ultim ate tensilestrengths of 684 774 M Pa , i m pact energy of 47 ±7 Jand elongation of 2 5 ±0 9 were ob tained . Optim u m a mount of liquid phase exists , and alarge a mount of liquid phase will re sult in the form ation of continuous netw ork of liquid phase that is detrim ental to strength andelongation .

Key words: m aster alloy po w der , densification , shrinkage

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Fe-Mo-B-CSINTERED STE ELS PRODUCED BY ADDITI ON OF MASTER ALLOY POWDERS

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