Mechanical Properties of a Cobalt Free Maraging Steel Containing Chromium

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  • 含クロム無コバルトマルエージング鋼の機械的性質
  • ガン クロム ム コバルト マルエージング コウ ノ キカイテキ セイシツ

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Abstract

The relation between mechanical properties and heat-treatment was studied on an Fe-3Cr-14Ni-3Mo-1.5Ti steel. The steel is a new cobalt free maraging steel in which deterioration of toughness introduced by formation of low temperature precipitates associated with the presence of titanium is suppressed by addition of chromium.<BR>When the steel is annealed at comparatively low temperature, the toughness of the steel after aging decreases with the effect of Laves phase present undissolved in the matrix. However, the steel annealed at a high temperature at which the Laves phase dissolves into the matrix shows excellent properties as follows, when aged at 783 K for 1.8 ks.<BR>(This article is not displayable. Please see full text pdf.)

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