postuniformとは 意味・読み方・使い方

形容詞

postuniform (not comparable)

1. (metallurgy) Pertaining to the state where elongation is a function of the strainrate hardening exponent determined near maximum load
   • 1999, Anil K. Sinha, “Mechanical Metallurgy of Flat-Rolled Metal Products”, in Henry E. Theis, editor, Handbook of Metalforming Processes, New York, NY: Marcel Dekker, Inc., →ISBN, page 31:

     This produces a more uniform strain distribution. This is of special significance in the postuniform elongation region, where necking and high strain concentrations occur. An approximately linear relationship has been found between the m value and postuniform elongation for various steels and nonferrous alloys [17].

   • 2014, Comprehensive Materials Processing, page 370:

     Deformation continues during postuniform strain in the neck and initiates microvoid formation around hard particles such as inclusions and carbides, leading eventually to ductile fracture surfaces characterized by coalesced microvoids.

   • 2016, George E. Totten, ‎Rafael Colas, Encyclopedia of Iron, Steel, and Their Alloys, page 362:

     However, excess boron is desirable for improving postuniform elongation because it suppresses carbide precipitation at the grain boundary.