Paper Title:
Influence of Quenching Temperature on Microstructure and Properties of 40Cr Steel by Zero Time Holding Quenching
  Abstract

The effect of quenching temperature on the microstructure and mechanical properties of 40Cr steel by zero time holding quenching were studied. The results showed that the strength and hardness of 40Cr steel increased with the increase of quenching temperature in the range of 860~940°C, the strength and hardness reach the maximum at 920°C and then decrease. The metallographic analysis shows austenite grains of the samples by “Zero Time Holding” Quenching have been refined compared with the traditional heat treatment technology. Fine lath martensite was obtained by the “zero time holding” quenching due to the smaller austenitic crystal grain and the uneven distribution of the carbon concentration in austenitic crystal grain.

  Info
Periodical
Edited by
Congda Lu
Pages
25-28
DOI
10.4028/www.scientific.net/AMR.215.25
Citation
A. M. Li, M. J. Hu, "Influence of Quenching Temperature on Microstructure and Properties of 40Cr Steel by Zero Time Holding Quenching", Advanced Materials Research, Vol. 215, pp. 25-28, 2011
Online since
March 2011
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