Uniaxial ratcheting behaviour of 304L stainless steel and ER308L weld joints

Wang, Hao; Jing, Hongyang; Zhao, Lei; Han, Yongdian; Lv, Xiaoqing

doi:10.1016/j.msea.2017.09.109

Cited by 22 publications

(13 citation statements)

References 54 publications

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“…In the case of the welded joint, it can be seen that cyclic softening during LCF tests was observed in the entire region after finishing short hardening in the early cyclic region between 1 and 10 cycles. In particular, this result showed that the cyclic behavior of the welded joint was similar to a characteristic of weldment in [20]. Figure 6 shows the strain-life curves for two different thicknesses (5 mm and 10 mm) under a strain ratio of R = 0.…”

Section: Thickness Effectmentioning

confidence: 64%

“…However, this is an experimental observation and more test data is required to explain the thickness effect. In general, there are three different characteristics (short hardening, slight softening, and significant secondary hardening) under the cyclic behavior of AISI 304L base metal [3,20]. It is noted that the softening behavior of AISI 304L depends on the applied strain amplitude.…”

Section: Thickness Effectmentioning

confidence: 99%

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Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint

Song

Kim

et al. 2018

Metals

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Abstract:The aim of this study is to investigate the low-cycle fatigue (LCF) properties of an AISI 304L welded joint based on experimental data. The influential parameters on the LCF such as the specimen thickness, strain ratio and cryogenic temperature were considered in this experimental study. In order to investigate the thickness effect on the LCF behavior, two types of specimens with thicknesses of 5 mm and 10 mm were used in an LCF test. In addition, the fatigue tests were conducted under strain control with three different strain ratios of R = −1, 0, and 0.5 at room and cryogenic temperatures. Based on the results obtained by this experimental study, no significant effect involved with the thickness and the strain ratio were observed. However, it was clearly observed that LCF performance at room temperature is lower than that at cryogenic temperature. Finally, an LCF design curve that can be used in design of the liquefied natural gas (LNG) applications is suggested.

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Section: Thickness Effectmentioning

confidence: 64%

Section: Thickness Effectmentioning

confidence: 99%

Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint

Song

Kim

et al. 2018

Metals

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“…The ratcheting strain and fatigue life depend on many factors, including mean stress, stress amplitude, stress ratio, loading rate and internal structure of the material. 73,74 To study the effect of grain size on the fatigue behaviour, two typical grain sizes were selected and conduced within the stress range of ±260 to ±320 MPa. Figure 11A shows the cyclic strain response of the 122-μm material in the first 1000 waveforms under asymmetric stress cycles.…”

Section: Ratcheting Fatigue Behaviourmentioning

confidence: 99%

Tensile mechanical properties, deformation mechanisms, fatigue behaviour and fatigue life of 316H austenitic stainless steel: Effects of grain size

Zhao

et al. 2020

Fatigue Fract Eng Mat Struct

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To explore the effect of grain size on the tensile behaviour, symmetrical strain control fatigue behaviour and ratcheting fatigue behaviour of the new austenitic steel 316H, a series of tensile tests, symmetrical strain control fatigue tests and ratcheting fatigue tests were conducted at 25°C within an average grain size range from 14 to 122 μm. The average dislocation free path, forest dislocation density and mobile dislocation density of 316H steel with different grain sizes under tension were obtained. Moreover, the decrease of grain size led to saturation of mobile dislocations at lower strains. The decrease of grain size led to the increase of the cyclic stress and affected softening and secondary hardening process. In addition, under the same stress control conditions, the reduction in grain size caused a reduction in ratcheting strain under the same cycle. The grain refinement of 316H steel contributed to the improvement of ratcheting fatigue life.

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“…Dalis deformacijų būna tik paviršinės. Dėl suvirinimo šilumos šaltinio poveikio metalas perkaista, šilumos paveiktoje zonoje dažnai atsiranda didesnių kristalizacinių grūdelių, kurie pablogina metalo savybes (Wang et al, 2017a(Wang et al, , 2017bWoei-Shyan, Jen ir Chi-Feng, 2004).…”

Section: Mechanics Materials Science Industrial Engineering and Manaunclassified

Technologinių Parametrų Įtakos Virintinės Jungties Savybėms Tyrimai, Suvirinant Aisi 304 Plieną / Research of the Technological Parameters Influence on the Weld Properties of Welded Steel Aisi 304

Sereika

Varnauskas

Gedzevičius

2019

Science - Future of Lithuania

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The article analyzes the influence of technological parameters on the properties of welded joints by welding AISI 304 steel. In order to get the results was carried out computer modeling with the finite element modeling program ANSYS, welded samples performed visual inspection, hardness testing to make a seam. Results of the study are presented in tabular and graphic representation, the conclusions.

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Uniaxial ratcheting behaviour of 304L stainless steel and ER308L weld joints

Cited by 22 publications

References 54 publications

Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint

Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint

Tensile mechanical properties, deformation mechanisms, fatigue behaviour and fatigue life of 316H austenitic stainless steel: Effects of grain size

Technologinių Parametrų Įtakos Virintinės Jungties Savybėms Tyrimai, Suvirinant Aisi 304 Plieną / Research of the Technological Parameters Influence on the Weld Properties of Welded Steel Aisi 304

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