Creep–fatigue damage for a structure with dissimilar metal welds of modified 9Cr–1Mo steel and 316L stainless steel

Lee, Hyeong-Yeon; Lee, Se-Hwan; Kim, Jong Bum; Lee, Jae-Han

doi:10.1016/j.ijfatigue.2007.02.009

Cited by 75 publications

(24 citation statements)

References 8 publications

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“…Similarly, many researchers [18,19] reported about the effect of carbon diffusion against strength and corrosion properties of the dissimilar weldment.…”

Section: Introductionmentioning

confidence: 94%

Comparative assessment on microstructure and mechanical properties of continuous and pulse-current GTA welds of AISI 304 and Monel 400

DEVENDRANATH¹,

ARIVAZHAGAN²,

NARAYANAN³

2016

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This study investigates the weldability, microstructure and mechanical properties of dissimilar AISI 304 and Monel 400 welds using continuous and pulse-current GTA welding processes. Dissimilar joints of AISI 304 and Monel 400 are widely used in the marine and offshore environments, oil and gasification plants. These welding processes are carried out using three filler wires, namely E309L, ENiCu-7 and ENiCrFe-3. Microstructure examination is carried out on these dissimilar weldments. In addition, a comparative analysis on the microhardness, tensile test values on these welds using the above-said filler materials is also discussed. The weldments obtained from ENiCu-7 and ENiCrFe-3 filler wires offer high strength and ductility. These studies would be useful for the fabricators implementing these dissimilar weldments in the offshore applications.K e y w o r d s : dissimilar metal welding, mechanical properties, Monel 400, AISI 304 stainless steel

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“…Similarly, many researchers [18,19] reported about the effect of carbon diffusion against strength and corrosion properties of the dissimilar weldment.…”

Section: Introductionmentioning

confidence: 94%

Comparative assessment on microstructure and mechanical properties of continuous and pulse-current GTA welds of AISI 304 and Monel 400

DEVENDRANATH¹,

ARIVAZHAGAN²,

NARAYANAN³

2016

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“…5(b) from the structural creep-fatigue test shown in Fig. 5(b) [10] were used. In the structural test, a hold time of two hours at about 550qC was applied, but the hold time was extended to 10,000 hours in this analysis as shown in Fig.…”

Section: Numerical Modelling Of the Hot Duct Pipingmentioning

confidence: 99%

“…In an actual design evaluation, however, creep-fatigue damage limits are usually more critical than the other two limits [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Preliminary application of the draft code case for alloy 617 for a high temperature component

Lee

Song

2008

J Mech Sci Technol

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The ASME draft Code Case for Alloy 617 was developed in the late 1980s for the design of very-high-temperature gas cooled reactors. The draft Code Case was patterned after the ASME Code Section III Subsection NH and was intended to cover Ni-Cr-Co-Mo Alloy 617 to 982qC (1800qF). But the draft Code Case is still in an incomplete status, lacking necessary material properties and design data. In this study, a preliminary evaluation on the creep-fatigue damage for a high temperature hot duct pipe structure has been carried out according to the draft Code Case. The evaluation procedures and results according to the draft Code Case for Alloy 617 material were compared with those of the ASME Subsection NH and RCC-MR for Alloy 800H material. It was shown that many data including material properties, fatigue and creep data should be supplemented for the draft Code Case. However, when the evaluation results on the creep-fatigue damage according to the draft Code Case, ASME-NH and RCC-MR were compared based on the preliminary evaluation, it was shown that the Alloy 617 results from the draft Code Case tended to be more resistant to the creep damage while less resistant to the fatigue damage than those from the ASME-NH and RCC-MR.

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“…9Cr-1Mo steel specimens were evaluated and compared with the results by an assessment according to the A16 guide and tests [10][11][12][13]. In this study, two results for the creep-fatigue damage and the creep-fatigue crack behaviour have been compared for an austenitic stainless steel structure with weldments and the results were compared to quantify the conservatism of the guidelines for a high temperature design and assessment.…”

Section: Introductionmentioning

confidence: 99%

Creep-fatigue crack behaviour of a mod. 9Cr-1Mo steel structure with weldments

Lee

Kim

et al. 2010

Trans Indian Inst Met

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An assessment of a creep-fatigue crack initiation and growth for a Mod. 9Cr-1Mo steel structure with weldments has been carried out based on an extended French RCC-MR A16 procedure. The A16 defect assessment guide provides assessment procedures for a creep-fatigue crack initiation and growth for an austenitic stainless steel, but no guidelines are available yet for a Mod. 9Cr-1Mo steel. A creep-fatigue structural test was carried out for a Mod. 9Cr-1Mo specimen with two hours of a hold time at 873 K and various primary nominal stresses. σ d approach was employed to evaluate a creep-fatigue crack initiation, and an assessment of a creep-fatigue crack growth at a defect has also been carried out. The evaluation results were compared with the observed images from the structural test.

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Creep–fatigue damage for a structure with dissimilar metal welds of modified 9Cr–1Mo steel and 316L stainless steel

Cited by 75 publications

References 8 publications

Comparative assessment on microstructure and mechanical properties of continuous and pulse-current GTA welds of AISI 304 and Monel 400

Comparative assessment on microstructure and mechanical properties of continuous and pulse-current GTA welds of AISI 304 and Monel 400

Preliminary application of the draft code case for alloy 617 for a high temperature component

Creep-fatigue crack behaviour of a mod. 9Cr-1Mo steel structure with weldments

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