Fatigue and Creep-Fatigue Behavior of Irradiated and Unirradiated Type 308 Stainless Steel Weld Metal at Elevated Temperatures

Korth, G.E.; Harper,

doi:10.1520/stp33686s

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“…Longitudinal weld metal fatigue data differ, if at all, only very slightly from fatigue data for the corresponding unaffected base metal. Weldment and transverse weld metal data, on the other hand, drop below the base metal fatigue curve in the midcycle region (14,15). In terms of strain range, the reduction factor varies generally between 1.5 and 1.8, although, depending on weld process, the factor can be somewhat larger for 2 1/4 Cr-1 Mo steel weldments.…”

Section: Weldment Strength Reduction Factors 21 Weldment Versus Basementioning

confidence: 97%

Evaluation of Weldment Creep and Fatigue Strength-Reduction Factors for Elevated-Temperature Design

Corum

1990

Journal of Pressure Vessel Technology

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New explicit weldment strength criteria in the form of creep and fatigue strength-reduction factors were recently introduced into the American Society of Mechanical Engineers Code Case N-47, which governs the design of elevated-temperature nuclear plant components in the United States. This paper provides some of the background and logic for these factors and their use, and it describes the results of a series of confirmatory creep-rupture and fatigue tests of simple welded structures. The structures (welded plates and tubes) were made of 316 stainless steel base metal and 16-8-2 weld filler metal. Overall, the results provide further substantiation of the validity of the strength-reduction factor approach for ensuring adequate life in elevated-temperature nuclear component weldments.

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Section: Weldment Strength Reduction Factors 21 Weldment Versus Basementioning

confidence: 97%

Evaluation of Weldment Creep and Fatigue Strength-Reduction Factors for Elevated-Temperature Design

Corum

1990

Journal of Pressure Vessel Technology

View full text Add to dashboard Cite

show abstract

Fatigue and Creep-Fatigue Behavior of Irradiated and Unirradiated Type 308 Stainless Steel Weld Metal at Elevated Temperatures

Cited by 1 publication

References 0 publications

Evaluation of Weldment Creep and Fatigue Strength-Reduction Factors for Elevated-Temperature Design

Evaluation of Weldment Creep and Fatigue Strength-Reduction Factors for Elevated-Temperature Design

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