Formation and stabilization of reverted austenite in supermartensitic 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...

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

Gaussian Process Modelling of Austenite Formation in Steel

We introduce the Gaussian process model for the empirical modelling of the formation of austenite during the continuous heating of steels. A previous paper has examined the application of neural networks to this problem, but the Gaussian process model is a more general probabilistic model which avoids some of the arbitrariness of neural networks, and is somewhat more amenable to interpretation....

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 ...

Stabilization of Austenite Associated with Prior Formation of Martensite

The stabilization of retained austenite was studied via a two-step cooling procedure. Alloys with M , temperatures below 0 OC were used. It was found that the martensitic transformation starting temperature, M,, was lowered to M,' during the second step of cooling. With increasing the amount of previously formed martensite, the difference in the transformation starting temperatures, AM, (= M,M,...