Analysis of Titanium Carbide in Austenite Stainless Steel

Crystallography of Widmanstätten austenite in duplex stainless steel weld metal

Two kinds of austenite grow from d-ferrite during the cooling of the duplex stainless steel weld deposits studied here, Widmanstätten plates and allotriomorphs which precipitate at d–d grain boundaries. It is found using microtexture measurements that the preferred crystallographic orientation of the Widmanstätten austenite can be estimated using established theory if it is assumed that there i...

A Study of Austenite Precipitate Growth in Duplex Stainless Steel A Research Performance Evaluation

As new experimental and characterization techniques are developed and improved, longstanding materials questions that have long been the subject of scientific debate are being revisited and answered. Such questions have surrounded the mechanism of solid-state phase transformation in ferrous systems for many years. Famous experimental and theoretical works produced such well-known metallurgists ...

Automatic Segmentation of the Secondary Austenite-phase Island Precipitates in a Superduplex Stainless Steel Weld Metal

Victor H. C. Albuquerque & Rodrigo Y. M. Nakamura & João P. Papa Cleiton C. Silva & João Manuel R. S. Tavares Universidade de Fortaleza, Centro de Ciências Tecnológicas, Fortaleza, Brazil Departamento de Computação, UNESP Univ Estadual Paulista, Bauru, Brazil Departamento de Engenharia Metalúrgica e Materiais, Universidade Federal do Ceará, Fortaleza, Brazil Universidade do Porto, Faculdade de ...

Modeling of Ni Diffusion Induced Austenite Formation in Ferritic Stainless Steel Interconnects

Martensite ? austenite phase transformation kinetics in an ultrafine-grained metastable austenitic stainless steel

A generalized phase transformation kinetics model is used to understand the martensite to austenite transformation in a cold-rolled and annealed metastable AISI 301LN ultrafine-grained austenitic stainless steel. The model shows that the presence of interstitial nitrogen and heavy cold-rolling is important to promote fast transformation kinetics, through rapid nitrogen-diffusion and austenite n...