Studies on Production and Thermo-Mechanical Treatment of 0.32% Nitrogen Alloyed Duplex Stainless Steel

Abstract

Duplex stainless steel with nitrogen content 0.32% was produced using a conventional induction furnace under normal ambient atmosphere. The samples were subsequently hot forged to various size reductions (23-57%). Both the as-cast and the hot-forged samples were examined for changes in the microstructure and mechanical properties. The results reveal that the optimal-mechanical properties were noticed for a forging deformation of 48%. Texture analysis was carried out in these samples using Inverse Pole Figures (IPF) and Orientation Distribution Function (ODF). However, IPF and ODF results revealed that bulk texture was weak after hot forging.

Influence of Cutting Speed, Feed Rate and Bulk Texture on the Surface Finish of Nitrogen Alloyed Duplex Stainless Steels during Dry Turning

“…The major BCC and FCC texture components are listed by name, Euler angle and Miller indices {h k l} <u v w> in the Table 1. The first indices {h k l} describe the crystallographic plane parallel to the sheet surface whereas the second indices <u v w> indicate the direction parallel to the rolling direction [14].…”