Is the temperature plateau of a self-heating test a robust parameter to investigate the fatigue limit of steels with thermography?

2017 ◽  
Vol 41 (4) ◽  
pp. 917-934 ◽  
Author(s):  
R. de Finis ◽  
D. Palumbo ◽  
M.M. da Silva ◽  
U. Galietti
Keyword(s):  
Fatigue Limit ◽  
Self Heating ◽  
Robust Parameter ◽  
Heating Test ◽  
Temperature Plateau

Self-Heating Test to Evaluate Temperature Stabilization in the Rolling Bearing

2013 ◽  
Author(s):  
Rafael V. Carvalho ◽  
Ludmila C. A. Silva ◽  
Milton Amaro ◽  
Alessandro A. Ferreira ◽  
Aparecido M. da Rosa
Keyword(s):  
Rolling Bearing ◽  
Temperature Stabilization ◽  
Self Heating ◽  
Heating Test

Examination of the United Nations self-heating test for sulphides

2019 ◽  
Vol 58 (4) ◽  
pp. 438-444 ◽  
Author(s):  
Sungjae Moon ◽  
Frank Rosenblum ◽  
Yue Hua Tan ◽  
Jan E. Nesset ◽  
Kristian E. Waters ◽  
...  
Keyword(s):  
United Nations ◽  
Self Heating ◽  
The United Nations ◽  
Heating Test

Cement composites with expanded graphite as resistance heating elements

2020 ◽  
Vol 54 (25) ◽  
pp. 3821-3831
Author(s):  
Maksymilian Frąc ◽  
Waldemar Pichór ◽  
Paulina Szołdra
Keyword(s):  
Cement Mortar ◽  
Rapid Heating ◽  
Expanded Graphite ◽  
Electrical Current ◽  
Maximum Temperature ◽  
Cement Composites ◽  
Resistance Heating ◽  
Self Heating ◽  
Time Required ◽  
Heating Test

The following paper presents the results of research on cement composites with expanded graphite as resistance heating elements. Samples of cement mortar were prepared with expanded graphite obtained from intercalated graphite by means of rapid heating at 1000℃. Monotonic and cyclic self-heating tests of cement composites with differing contents of expanded graphite were conducted. In the monotonic self-heating test, the electrical current and the surface temperature of the cement composites with expanded graphite were measured at temperatures 23℃ and –10℃ in order to evaluate their capacity to generate heat. The maximum temperature of composites, the time required to raise the temperature by 10℃, and the power density were determined. Five cycles were applied in the cyclic self-heating test to investigate heat-dependent mechanical properties. The results of the research revealed that cement composites with expanded graphite exhibited promising properties for application as resistance heating elements.

scholarly journals Self-heating Method for Fatigue Limit Determination on Thermoplastic Composites

2015 ◽  
Vol 133 ◽  
pp. 129-135 ◽  
Author(s):  
Catherine Peyrac ◽  
Thomas Jollivet ◽  
Nolwenn Leray ◽  
Fabien Lefebvre ◽  
Ophélie Westphal ◽  
...  
Keyword(s):  
Fatigue Limit ◽  
Thermoplastic Composites ◽  
Heating Method ◽  
Self Heating

scholarly journals Comparative investigation of the fatigue limit of additive-manufactured and rolled 316 steel based on self-heating approach

2020 ◽  
Vol 223 ◽  
pp. 106746 ◽  
Author(s):  
Yinfeng Cao ◽  
Ziad Moumni ◽  
Jihong Zhu ◽  
Yahui Zhang ◽  
Yajun You ◽  
...  
Keyword(s):  
Fatigue Limit ◽  
Comparative Investigation ◽  
Self Heating

scholarly journals On the Influence of Ultrasonic Surface Mechanical Attrition Treatment (SMAT) on the Fatigue Behavior of the 304L Austenitic Stainless Steel

Metals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 100 ◽  
Author(s):  
Clément Dureau ◽  
Marc Novelli ◽  
Mandana Arzaghi ◽  
Roxane Massion ◽  
Philippe Bocher ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Fatigue Limit ◽  
Room Temperature ◽  
Fatigue Behavior ◽  
High Stress ◽  
Fatigue Tests ◽  
Surface Mechanical Attrition Treatment ◽  
Self Heating ◽  
Mechanical Attrition

The potential of ultrasonic surface mechanical attrition treatment (SMAT) at different temperatures (including cryogenic) for improving the fatigue performance of 304L austenitic stainless steel is evaluated along with the effect of the fatigue loading conditions. Processing parameters such as the vibration amplitude, the size, and the material of the shot medias were fixed. Treatments of 20 min at room temperature and cryogenic temperature were compared to the untreated material by performing rotating–bending fatigue tests at 10 Hz. The fatigue limit was increased by approximately 30% for both peening temperatures. Meanwhile, samples treated for 60 min at room temperature were compared to the initial state in uniaxial fatigue tests performed at R = −1 (fully reversed tension–compression) at 10 Hz, and the fatigue limit enhancement was approximately 20%. In addition, the temperature measurements done during the tests revealed a negligible self-heating (∆t < 50 °C) of the run-out specimens, whereas, at high stress amplitudes, temperature changes as high as 300 °C were measured. SMAT was able to increase the stress range for which no significant local self-heating was reported on the surface.

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