November 2012

Characterization of stainless steel SS-1672

This research concerns characterization of stainless steel SS-1672 with 0.46 wt.% carbon concentration, at room temperature with respect to mechanical properties and morphology. Specimens were divided into two groups according to heat treatment, and were hardened at three different temperatures (250, 450 and 650°C) to obtain different martensitic content. Hardness results are compared with those of the...

Author(s): Farah Noori and Solveig Melin      

November 2012

Comparison of unconstrained search methods for correlation of binary vapor liquid equilibrium (VLE) by five variants of Wilson model

A comparative evaluation of five variants of Wilson model and eight unconstrained optimization methods for correlating the binary VLE data of 2-butanol-Tetrachloroethene system at 101.08 kPa pressure is presented. The data reduction and correlation for vapor/liquid equilibrium of the above system is presented. The objective of this paper was to find the parameters of the five variants of the Wilson models for the...

Author(s): A. Aravind Kumar and A. Ravi Prasad