Bestimmung des Aluminiumoxids in Eisen und Stahl

Bensch, Herbert

doi:10.1007/978-3-642-65144-1_22

Cited by 1 publication

(1 citation statement)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many investigators have recently identified Z phase precipitation as the root cause of this instability in the 2 Calculated equilibrium phases in steels shown in Table 1 Hald et al Thermodynamic and kinetic modelling new 10-12%Cr steels. 25 The Z phase Cr(V,Nb)N was first observed in older 12%Cr steels with high Nb content by Schnabel et al 26 It can completely dissolve the MX carbonitrides, which are major contributors to creep strength as first recognised by Strang and Vodarek. 27 It may grow to very large particles, which will not contribute to precipitation hardening, and which may each consume more than 1000 fine MX particles (Fig.…”

Section: Microstructure Instability: Z Phase Cr(vnb)nmentioning

confidence: 94%

Thermodynamic and kinetic modelling: Creep resistant materials

Hald

Korcakova

Danielsen

et al. 2008

Materials Science and Technology

View full text Add to dashboard Cite

The use of thermodynamic and kinetic modelling of microstructure evolution in materials exposed to high temperatures in power plants is demonstrated with two examples. Precipitate stability in martensitic 9–12%Cr steels is modelled including equilibrium phase stability, growth of Laves phase particles and coarsening of MX, M23C6 and Laves phase particles. The modelling provided new insight into the long term stability of new steels. Modelling of the detrimental precipitation of Z phase Cr(V,Nb)N is described, which points to new approaches in alloy development for higher temperatures. Predictions of interdiffusion between a MCrAlY coating and an IN738 bulk alloy by multicomponent diffusion calculations provide a highly versatile tool for life assessment of service exposed gas turbine components as well as for the development of improved coatings.

show abstract

Section: Microstructure Instability: Z Phase Cr(vnb)nmentioning

confidence: 94%