Titlebook: Creep-Fatigue Fracture: Analysis of Internal Damage; Weisheng Zhou,Naoya Tada,Junji Sakamoto Book 2024 The Editor(s) (if applicable) and T

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Conditions for Appearance of Internal Intergranular Cracking Type Fracture Under Creep-Fatigue,04. Two fracture morphologies were observed in high-temperature creep-fatigue fracture: inner cracking type fracture due to coalescence of small internal intergranular cracks and surface cracking type due to growth of small surface intergranular cracks. The fracture morphologies are strongly depende

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Initiation and Growth Behavior of Small Inner Crack, were conducted at high temperatures and low tensile strain rates. The small cracks that initiated and grew inside the specimens were observed on the longitudinal split sections along the stress axis, and their changes with time were clarified. In addition, the size of intergranular cavities, which

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Basics of Model of Random Fracture Resistance of Grain Boundaries,daries for an initiation and propagation of multiple small cracks in creep-fatigue. In the one-dimensional model of random fracture resistance of grain boundaries, the concept of the model is explained, and it is shown that the one-dimensional model can be used to simulate the behavior of small crac

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Annihilation and Healing of Small Inner Cracks and Extension of Fatigue Life, cavities and small cracks were introduced to the inside by cp-type creep-fatigue tests. In the slow-tensile fast-compression (cp-type) creep-fatigue tests at high temperature, many small cracks and cavities initiate inside the specimen, and at the end of the life, they coalesce and grow, leading to

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Conclusions,under the conditions that exhibit inner cracking type fracture, from the onset to the final failure. Typical damage of austenitic stainless steel SUS304 caused by creep-fatigue is grain boundary cavities, small intergranular cracks, and large cracks.

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