Comparative studies on near-threshold fatigue crack propagation behavior of high manganese steels at room and cryogenic temperatures

Jeong, Daeho; Lee, Soon-Gi; Yoo, Jang-Yong; Lee, Jong-Sub; Kim, Sangshik

doi:10.1016/j.matchar.2015.03.012

Cited by 24 publications

(3 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(A) Sub‐zero temperatures ∆K th data extracted from literature and (B) normalised average ∆K th change at sub‐zero temperatures from 50 datasets reported in literature 52–75 [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Assessment Of the Results Using Data Of Materials Fatiguementioning

confidence: 99%

Extension of the strain energy density method for fatigue assessment of welded joints to sub‐zero temperatures

Braun

Fischer²,

Fricke

et al. 2020

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

Within stress-based fatigue assessment concepts, causes that do not influence the fatigue stress parameters, such as temperature, can only be accounted for by means of modification factors. The strain energy density (SED) method allows to account for changing material support effects and Young's modulus with temperature directly. Thus, in this study, a concept is presented to extend the SED method for fatigue assessment of welded joints at sub-zero temperatures. For this purpose, fatigue test results of welded joints made from normal and high-strength structural steel are assessed in the range of 20 C down to −50 C. The results are evaluated based on the formula that is used to derive the SED control radii of welded joints and compared with results of studies on SED-based assessment of notched components at high temperatures. From the estimates of the control radii, a temperature modification function for SED is derived for design purposes.

show abstract

Section: Assessment Of the Results Using Data Of Materials Fatiguementioning

confidence: 99%

Extension of the strain energy density method for fatigue assessment of welded joints to sub‐zero temperatures

Braun

Fischer²,

Fricke

et al. 2020

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

“…da/dN for austenitic stainless steel 304 at cryogenic temperatures is substantially lower than at room temperature. It can be explained by the increase of strain induced martensitic transformation near the crack tip .…”

Section: Resultsmentioning

confidence: 99%

Fatigue crack growth characteristics of austenitic stainless steel for cold‐stretched pressure vessels at cryogenic temperatures

Choi

Kim

Kim³

et al. 2016

Materialwissenschaft Werkst

View full text Add to dashboard Cite

Cold-stretched pressure vessels made from austenitic stainless steel are widely used for storage and transportation of liquefied gases. Compared with conventional pressure vessels, cold-stretched vessels have lots of advantages such as having thin walls, light weight, and low energy consumption. However, pressure vessels can be subjected to alternating loads at cryogenic temperatures, so it is important to investigate the fatigue characteristics of austenitic stainless steel for cold-stretched vessels. This study presents the static and fatigue behavior of austenitic stainless steel 304 sampled from cold-stretched pressure vessels in accordance with the American Society of Mechanical Engineers code. To compare the mechanical properties and fatigue behavior of austenitic stainless steel 304 in as-received and coldstretched conditions (9 % strain level), tensile and fatigue crack growth tests were performed at room and cryogenic temperatures respectively. Fractography of the fractured specimens was carried out using a scanning electron microscope.

show abstract

“…The addition of manganese to steel increases the stability of austenite, suppresses the formation of ferrite/pearlite and simultaneously lowers the martensite finish temperature. Thus, manganese is an attractive substitute for nickel in cryogenic ferrous alloys and Mn-containing cryogenic steels have been developed recently [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Design of novel Fe–Mn–Ni cryogenic steel: microstructure-property relationship during simulated welding

Wang

Luo

Wan

et al. 2017

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

We describe here the microstructural evolution during simulation of welding thermal cycles in novel Fe-Mn-Ni cryogenic steel and elucidate the mechanism of cryogenic toughness. The original microstructure was tempered martensite and ∼ 10% retained austenite. Electron backscattered diffraction indicated that the frequency of large-angle boundaries with misorientation > 15°was similar at peak temperatures of 1320, 870 and 760°C. The volume fraction of retained austenite determined by X-ray diffraction was ∼ 11% at 760°C, 9% at 870°C and 1% at 1320°C. Retained austenite was film-like near the bainite lath, and it was enriched with Mn and Ni at peak temperatures of 760 and 870°C. The enrichment with Mn and Ni stabilised the austenite and softened the bainitic matrix. The higher volume fraction of stable retained austenite was the dominant factor responsible for superior cryogenic toughness at the peak temperature of 760°C.

show abstract

Comparative studies on near-threshold fatigue crack propagation behavior of high manganese steels at room and cryogenic temperatures

Cited by 24 publications

References 26 publications

Extension of the strain energy density method for fatigue assessment of welded joints to sub‐zero temperatures

Extension of the strain energy density method for fatigue assessment of welded joints to sub‐zero temperatures

Fatigue crack growth characteristics of austenitic stainless steel for cold‐stretched pressure vessels at cryogenic temperatures

Design of novel Fe–Mn–Ni cryogenic steel: microstructure-property relationship during simulated welding

Contact Info

Product

Resources

About