Thermomechanical and Isothermal Fatigue Behavior of 316LN Stainless Steel with Varying Nitrogen Content

Thermomechanical and Isothermal Fatigue Behavior of 316LN Stainless Steel with Varying Nitrogen Content

Thermomechanical (TMF) and isothermal (IF) fatigue behavior of 316LN stainless steel alloyed with 0.07, 0.14, and 0.22 wt pct nitrogen is presented in this manuscript. In the TMF tests with temperature cycling in the range of 573 K to 873 K (300 °C to 600 °C), life decreased with increasing nitrogen...

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Veröffentlicht in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2015-02, Vol.46 (2), p.695-707
Hauptverfasser: Prasad Reddy, G. V., Nagesha, A., Sandhya, R., Sankaran, S., Mathew, M. D., Bhanu Sankara Rao, K.
Format: Artikel
Sprache:eng
Schlagworte:
Austenitic stainless steels
Characterization and Evaluation of Materials
Chemistry and Materials Science
Cycles
Density
Fatigue (materials)
Intermediate frequency
Localization
Materials Science
Mechanical properties
Metal fatigue
Metallic Materials
Nanotechnology
Nitrogen
Slip
Slip bands
Stainless steel
Stainless steels
Structural Materials
Surfaces and Interfaces
Thermodynamics
Thin Films
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Zusammenfassung:Thermomechanical (TMF) and isothermal (IF) fatigue behavior of 316LN stainless steel alloyed with 0.07, 0.14, and 0.22 wt pct nitrogen is presented in this manuscript. In the TMF tests with temperature cycling in the range of 573 K to 873 K (300 °C to 600 °C), life decreased with increasing nitrogen content for both in-phase (IP) and out-of-phase (OP) cycling, with a peak at 0.07 wt pct N. In contrast, 0.14 wt pct N yielded maximum life under IF cycling carried out at 873 K (600 °C). Cyclic lives are seen to follow the sequence, IP-TMF 
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-014-2653-y