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ASPECTS OF THE INFLUENCE OF CRYOGENIC THERMAL TREATMENTS ON THE REDISTRIBUTION OF ALLOYING CONSTITUENTS BETWEEN THE MATRIX AND THE CARBURIC PHASE FROM HIGH SPEED STEELS.

Author(s) : ALEXANDRU I.

Type of article: Article

Summary

THE MAIN THERMAL TREATMENTS STUDIED ARE: OIL HARDENING + 853 K (580 DEG C) DRAWBACK, OIL HARDENING + 203 K (-70 DEG C) COOLING + 853 K DRAWBACK, OIL HARDENING + 853 K DRAWBACK + 203 K COOLING + 853 K DRAWBACK. X-RAYS IMAGES POINT OUT THAT THERMAL TREATMENT DETERMINES THE STRUCTURE AND DISTRIBUTION OF THE ALLOWING CONSTITUENTS BETWEEN THE MATRIX AND THE CARBIDES (LARGE OR FINE PRECIPITATED CARBIDES IN VARIABLE QUANTITIES). THE THERMAL TREATMENT AT CRYOGENIC TEMPERATURES CONTRIBUTES TO THE SUBSTANTIAL INCREASE OF THE CUTTING CHARACTERISTICS OF HIGH SPEED STEEL BUT IT MUST BE COMPULSORILY FOLLOWED BY A 853 K DRAWBACK DURING WHICH THE CONVENIENT REDISTRIBUTION OF THE ALLOYING CONSTITUENTS TAKES PLACE. J. V.

Details

  • Original title: ASPECTS OF THE INFLUENCE OF CRYOGENIC THERMAL TREATMENTS ON THE REDISTRIBUTION OF ALLOYING CONSTITUENTS BETWEEN THE MATRIX AND THE CARBURIC PHASE FROM HIGH SPEED STEELS.
  • Record ID : 1985-0805
  • Languages: English
  • Source: Buletinul Institutului politehnic din Iasi, Sectia Stiinta si Ingineria Materialelor - vol. 27 - n. 1-2
  • Publication date: 1984
  • Document available for consultation in the library of the IIR headquarters only.

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