AN APPROACH CONCERNING THE APPEARING OF EFFLORESCENCES IN CAST IRONS

  • CIUCESCU DORU
    UNIVERSITY OF BACĂU
  • GHEORGHIAN MIRELA
    UNIVERSITY OF BACĂU
  • SIMIONESCU GHEORGHE
    UNIVERSITY OF BACĂU

Abstract

The efflorescence is a surface defect affecting dramatically the quality of cast irons. It is known that during solidification in gray irons appear interconnected graphite flakes which resemble a number of potato chips glued together at a single location. In some conditions, the graphite from gray cast irons provokes the phenomenon of efflorescence. In this paper is presented this phenomenon due to induction normalizing preceding an in the case of cast gray irons.

Cuvinte cheie

graphite flakes induction normalizing. induction quenching efflorescence