Effect of powder purification by heat-treatment on the creep behaviour of dense boron carbide monoliths

Roumiguier, L.; Antou, Guy; Pradeilles, Nicolas; Jankowiak, A.; Zapata-Solvas, Eugenio; Lee, William; Maı̂tre, Alexandre

doi:10.1016/j.jeurceramsoc.2020.02.010

Cited by 1 publication

(1 citation statement)

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“…Recently, the development of an efficient approach for predicting creep deformation of materials operating at high temperatures has been paid more attention. For instance, two advanced testing devices have been proposed to characterize the uniaxial behaviour of ordinary refractory ceramics at corresponding service loads [19][20][21][22], of which one is applied to measure the compressive creep at elevated loads and the other is dedicated to tensile creep measurement. With the test equipment, the creep curves of the refractory can be achieved in a reasonable time.…”

Section: Introductionmentioning

confidence: 99%

Numerical study of creep effect on purging plug performance under cyclic service

Tan

Jin

et al. 2022

J. Iron Steel Res. Int.

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The service life of the purging plug is one of the fundamental factors that determine the downtime and usage efficiency of the whole ladle. The creep behaviour of the purging plug was thus investigated to identify the possible failure mechanism. At first, the creep parameters of the Norton–Bailey strain hardening rule were inversely identified via the results of the creep test. Then, the thermal-solid coupling model approach was employed to predict the creep behaviour of the purging plug, in which the Norton–Bailey strain hardening rule was applied. The numerical results show that the temperature of the purging plug presents a cyclic trend after the first service period since the preheating temperature is lower than the temperature of molten steel. Furthermore, the distribution of the creep strain intensity in a layered form could also contribute to a gradual spalling of the purging plug end in service. Besides, the creep strain concentration around the slit can be responsible for the clogging of the purging plug.

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Section: Introductionmentioning

confidence: 99%