Paper Title:
Effect of Different Tempering Stages and Temperatures on Microstructure, Tenacity and Hardness of Vacuum Sintered HSS AISI T15
  Abstract

The purpose of this study is to evaluate the effect of the stages and tempering temperatures in the microstructure, tenacity and hardness of the vacuum sintered high speed steel AISI T15. The material was uniaxial pressing at 700 MPa and sintered in a vacuum furnace at 1275°C. After that, different samples of the materials were submitted to the annealing treatment at 870°C, quenching at 1235°C and tempering (single, double and triple) at 540, 550 and 560°C. Concluded the treatments, Rockwell C measurements of hardness were accomplished and, to evaluate the toughness of the material, TRS (Transverse Rupture Strength) tests were done. Later on, the materials were submitted to the metallographic preparation for microstructure analysis in optical microscopy, SEM, EDX and X-ray diffraction. Finally, each property analyzed was evaluated and correlated with the different tempering stages and temperatures accomplished.

  Info
Periodical
Materials Science Forum (Volumes 591-593)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
68-73
DOI
10.4028/www.scientific.net/MSF.591-593.68
Citation
E.P.R. Lima, M. D. M. das Neves, R. A. Nogueira, L.G.C. de Oliveira, F. Ambrozio Filho, "Effect of Different Tempering Stages and Temperatures on Microstructure, Tenacity and Hardness of Vacuum Sintered HSS AISI T15", Materials Science Forum, Vols. 591-593, pp. 68-73, 2008
Online since
August 2008
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$32.00
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