Krzysztof Wieczerzak

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Questions related from Krzysztof Wieczerzak

Can the "delta ferrite↔sigma phase + austenite" transformation, observed e.g. in duplex stainless steels, be called as eutectoid decomposition?

I found many publications, which suggest that the "delta ferrite↔sigma phase + austenite" transformation in duplex stainless steels is eutectoid. According to well known definition the eutectoid...

06 June 2017 6,070 5 View

What technique would you recommend to measure SFE in metalic materials, where significant chemical segregation is observed?

It is well known that, inter alia, work hardening rate of metalic materials is stacking fault energy (SFE) dependent. Consequently, the SFE has a significant impact on properties of metalic alloys...

04 April 2017 10,032 5 View

How to explain formation of needle-like precipitations, e.g. intermetalic compounds, in metalic materials?

The needle-like precipitations might be found in many metalic systems, e.g. σ or μ phase in nickel-based alloys, iron or silicon-rich phases in aluminum alloys, some carbides or intermetalic...

04 April 2017 4,833 3 View

Should we expect differences in phase diagrams between bulk materials and thin films?

It is known that bulk materials and thin films represent two different universes in terms of diffusion controlled transformations. Are commonly used phase diagrams, mainly made using bulk...

01 January 1970 8,190 14 View