Microstructure and mechanical properties of 12wt.% Cr ferritic stainless steel with Ti and Nb dual stabilization

Wang, Lixin; Song, Changjiang; Sun, Feng; Li, Lijuan; Zhai, Qijie

doi:10.1016/j.matdes.2008.04.040

Cited by 73 publications

(36 citation statements)

References 12 publications

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“…Therefore, the precipitates on the organization were titanium or niobium intermetallic compounds [20]. These particles are considered to be TiN, TiC or (Nb Ti)C [21,22]. It can be interpreted that when the temperature exceeds 1300˝C, the particles dissolve in ferrites.…”

Section: Thermal Cycle and Microstructure Of The Heat-affected Zonementioning

confidence: 99%

Finite-Element Thermal Analysis and Grain Growth Behavior of HAZ on Argon Tungsten-Arc Welding of 443 Stainless Steel

Wang

Deng

Zheng

et al. 2016

Metals

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This paper presents a numerical and infrared experimental study of thermal and grain growth behavior during argon tungsten arc welding of 443 stainless steel. A 3D finite element model was proposed to simulate the welding process. The simulations were carried out via the Ansys Parametric Design Language (APDL) available in the finite-element code, ANSYS. To validate the simulation accuracy, a series of experiments using a fully-automated welding process was conducted. The results of the numerical analysis show that the simulation weld bead size and the experiment results have good agreement. The grain growth in the heat-affected zone of 443 stainless steel is influenced via three factors: (1) the thermal cycle experienced; (2) grain boundary migration; and (3) particle precipitation. Grain boundary migration is the main factor. The modified coefficient k of the grain growth index is calculated. The value is 1.16. Moreover, the microhardness of the weld bead softened slightly compared to the base metal.

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Section: Thermal Cycle and Microstructure Of The Heat-affected Zonementioning

confidence: 99%

Finite-Element Thermal Analysis and Grain Growth Behavior of HAZ on Argon Tungsten-Arc Welding of 443 Stainless Steel

Wang

Deng

Zheng

et al. 2016

Metals

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“…Generally, welding is an inevitable production technique in fabrication of ferritic stainless steels. However, the ductility and toughness of FSS would be deteriorated after welding due to grain growth, phase transformation and other reactions [4,5]. In 12wt.% Cr steels, the presence of ferritie-austenite transformation has been used to develop transformable stainless steels with better weldability than fully ferritic steels [6].…”

Section: Introductionmentioning

confidence: 99%

“…Wang et al [4] investigated the microstructures and mechanical properties of TCS stainless steel (12wt.% Cr FSS) heated at 600-1300 °C for 10 min and followed water quenching. Results show the increasing of both tensile strength and hardness meanwhile the ductility and toughness have experienced the decreasing due to formation of martensitic phase and grain coarsening.…”

Section: Introductionmentioning

confidence: 99%

Microstructure evolution in heat affected zone of T4003 ferritic stainless steel

Zhang

Wang

et al. 2015

Materials & Design

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“…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. Froitzheim et al [13] found that the addition of 1% Nb to the high-Cr ferrite steels led to an improvement of oxidation resistance.…”

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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Microstructure and mechanical properties of 12wt.% Cr ferritic stainless steel with Ti and Nb dual stabilization

Cited by 73 publications

References 12 publications

Finite-Element Thermal Analysis and Grain Growth Behavior of HAZ on Argon Tungsten-Arc Welding of 443 Stainless Steel

Finite-Element Thermal Analysis and Grain Growth Behavior of HAZ on Argon Tungsten-Arc Welding of 443 Stainless Steel

Microstructure evolution in heat affected zone of T4003 ferritic stainless steel

Creep behavior of ultra pure ferrite stainless steel 409M

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