Material Parameters for Creep Rupture of Austenitic Stainless Steel Foils

Osman, Heba Ahmed; Borhana, Abdoulhdi A.; Tamin, Mohd Nasir

doi:10.1007/s11665-014-1070-0

Cited by 7 publications

(1 citation statement)

References 20 publications

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“…With the continuous development of iron and steel smelting technology, ultra pure ferrite stainless steels with better formability, weldability and corrosion resistance have been developed through reducing the content of C and N and optimizing alloying elements such as Nb, Ti and Mo [6,7]. Notably, Nb and Ti are strong forming elements of carbide and nitride, which can react with C and N and form the MX-type intermetallic, avoid the precipitations of chromium carbonitrides that have disadvantageous effects on the intergranular corrosion [8][9][10][11]. Wang et al [12] reported that for the 12%Cr ferrite stainless steel, Ti and Nb dual stabilization could eliminate or alleviate the intergranular corrosion generally associated with the precipitation of chromium carbides, nitrides and carbonitrides at the grain boundaries.…”

Section: Introductionmentioning

confidence: 99%

Creep behavior of ultra pure ferrite stainless steel 409M

Ying¹,

Liu²,

Chen³

et al. 2015

Proceedings of the 2015 International Conference on Advanced Engineering Materials and Technology

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Abstract. The creep tests have been conducted for ultra pure ferrite stainless steel 409M at 650˚C and the applied stress ranging from 60MPa to 80MPa. The creep deformations and rupture behaviors have been investigated. The results show that a brief primary creep stage is characterized under the condition of test. A larger applied stress caused a higher steady state creep rate and a shorter rupture time at 650˚C. The steady-state creep rate can be described by creep constitutive equation with the creep stress exponent n of 2.34, which shows a creep mechanism involving grain boundary sliding. The creep rupture data show an excellent agreement with the Monkman-Grant relationship. The fracture pattern belongs to transgranular ductile fracture.

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