The aim of this study is to investigate the nucleation of new grains by necklacing mechanism during dynamic recrystallization (DRX). The material used is 316 stainless steel. In order to modeling the deformation behavior during hot rolling, one-hit compression tests were performed at temperature range of 950-1100 °C with strain rates of 0.01-1s-1. The result shows that at the tempera...

The residual stresses in a TiN film deposited by a reactive ion coating process on a 316 stainless steel sheet were determined by the sin$ X-ray diffraction method, at temperatures from 15-800 “C. Using specially designed nickel clips, the coated strip was heated by the passage of a resistive current, in conjunction with a surround heater, and the temperature was measured by a Pt/Pt-lO%Rh therm...

This paper presents a series of tests on cold-formed stainless steel bolted connections. The test specimens were fabricated from three different types of stainless steel, including austenitic stainless steel EN1.4301 (AISI 304) and EN1.4571 (AISI 316Ti having small amount of titanium) as well as lean duplex stainless steel EN1.4162 (AISI S32101). The material properties of the three types of st...

Biological systems have a remarkable capability to produce perfect fine structures such as seashells, pearls, bones, teeth and corals. These structures are composites of interacting inorganic (calcium phosphate or carbonate minerals) and organic counterparts. It is difficult to say with certainty which part has the primary role. For example, the growth of molluscan shell crystals is thought to ...

Abstract Supercritical water oxidation (SCWO) can efficiently and harmlessly dispose sewage sludge, while corrosion phenomena lead to rapid shutdown and/or failure of expensive process equipments in a supercritical system. The behavior titanium alloys, Ni-based alloys stainless steel exposed sludge at 450 °C, 26 MPa for 60 h was investigated by means gravimetry, scanning electron microscopy, en...