Thermodynamic analysis of the effect of compositional inhomogeneity on phase transformations in a 13Cr6Ni2Mo supermartensitic stainless steel

被引：9

作者：

Bojack, Andrea ^{[1
,2
]}

Zhao, Lie ^{[1
,2
]}

Sietsma, Jilt ^{[2
]}

机构：

[1] Mat Innovat Inst M2i, Mekelweg 2, NL-2628 CD Delft, Netherlands

[2] Delft Univ Technol, Dept Mat Sci & Engn, NL-2628 CD Delft, Netherlands

来源：

SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2 | 2011年 / 172-174卷

关键词：

Supermartensitic Stainless Steels; Thermodynamic Calculations; Retained Austenite; AUSTENITE;

D O I：

10.4028/www.scientific.net/SSP.172-174.899

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Supermartensitic stainless steels possess an excellent combination of strength, toughness and corrosion resistance and have attracted an increased industrial attention especially from the offshore oil and gas industry, where those materials are already successfully in use. It is well known that the mechanical properties of this type of steels are strongly dependent on the fraction of retained austenite, which is controlled by heat treatment. Because the products manufactured out of these steels are in large sections, temperature gradients and corresponding compositional inhomogerieities are inevitable. Also during heat treatment partitioning of elements between the phases will give local concentrations far removed from the bulk levels. In the present work a 13Cr6Ni2Mo supermartensitic stainless steel is thermodynamically analyzed using the ThermoCalc (R) software package where the influence of compositional variations on phase transformations is investigated, in particular the effect of changes in the Ae(3)-temperature is discussed.

引用

页码：899 / +

页数：2

共 10 条

[1] Characteristics and effects of austenite resulting from tempering of 13Cr-NiMo martensitic steel weld metals [J].