Cyclic Deformation Mechanism and Fracture Behaviour of 316l Stainless Steel Under Thermomechanical Fatigue Loading

Yin, Peng; Zhang, Wei; Zhang, Yi; Yang, Qiaofa; Liang, Fei; Chang, Le; Zhou, Changyu

doi:10.2139/ssrn.4328084

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[3][4][5][6] Many studies on the TMF behavior of austenitic stainless steel (304, 304 L, 316, 316 L, 316LN) have been published, which mainly focus on the mechanical response behavior 4,5,[7][8][9] and failure mechanism of the material under different phase angles between temperature and mechanical loads, 3,10,11 different temperature ranges, 12,13 different strain rates, [14][15][16][17] and different nitrogen contents. 16,17 There are also some studies focusing on the fatigue life 6,18 and mechanical behavior of materials under different loading forms, such as uniaxial tensioncompression loading, 19 torsional loading, 20 and multiaxial tension-torsion loading. 21 However, these studies primarily concentrate on the crack initiation mechanism and the failure process of intact specimens under TMF conditions and lack a systematic study on the propagation behavior of already cracked structures.…”

Section: Introductionmentioning

confidence: 99%

Isothermal and thermomechanical fatigue crack growth behavior of 316LN stainless steel under load‐ and strain‐controlled modes

Zheng,

Li,

Chen

2024

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

Crack growth tests of 316LN stainless steel under load‐controlled and strain‐controlled thermo‐mechanical fatigue (TMF) loadings at the temperature range of 350°C ~ 550°C were conducted. Moreover, the isothermal fatigue (IF) crack growth tests at the maximum temperature of 550°C were performed for comparison. The differences in IF and TMF crack propagation behavior under different loading conditions were thoroughly discussed, and the underlying mechanisms were revealed by a comprehensive characterization of the deformation state of the crack tip region using digital image correlation (DIC) and electron backscatter diffraction (EBSD) methods. Furthermore, it was found that the EBSD characterization was simply based on a single plane made it difficult to evaluate the complex crack growth behavior. In addition, the limitations of the classical parameter of stress intensity factor under TMF loading were presented.

show abstract