Fatigue at Elevated Temperatures

Fatigue at Elevated Temperatures PDF Author:
Publisher: ASTM International
ISBN:
Category : Metals
Languages : en
Pages : 804

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Fatigue at Elevated Temperatures

Fatigue at Elevated Temperatures PDF Author:
Publisher: ASTM International
ISBN:
Category : Metals
Languages : en
Pages : 804

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Book Description


Relationship Between Thermal Fatigue and Low-cycle Fatigue at Elevated Temperature

Relationship Between Thermal Fatigue and Low-cycle Fatigue at Elevated Temperature PDF Author: S. Taira
Publisher:
ISBN:
Category : Carbon steels
Languages : en
Pages : 21

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This paper discusses the correlation between thermal fatigue and low-cycle fatigue at elevated temperature in terms of the change in microstructure of materials during the fatigue process. It substantiates the formula for life prediction in fatigue at elevated temperature which has been proposed by the author and co-workers with experimental proof. It is found that the characteristic feature of the low-cycle fatigue of a low-carbon steel at the test temperature above 500 C is taken as a diffusion controlled process characterized by the formation of subgrains in the change of microstructure, proved by observations with an optical microscope as well as X-ray diffraction techniques. The same feature is observed in the case of thermal fatigue where the upper bound of temperature in temperature cycling is close to or above 500 C. The temperature level of low-cycle fatigue giving the same fatigue life as a thermal fatigue testing, that is, the equivalent temperature of thermal fatigue is close to the upper bound of temperature of thermal fatigue. In contrast, for the test of thermal fatigue or low-cycle fatigue where such a high temperature is not included in either the range or the level of test temperature, the fatigue damage is taken as controlled by the slip mechanism. The equivalent test temperature is close to the mean of the upper and the lower bound of thermal fatigue.

Hold-time Effects in High-temperature Low-cycle Fatigue

Hold-time Effects in High-temperature Low-cycle Fatigue PDF Author: Erhard Krempl
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 44

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Low Cycle Fatigue

Low Cycle Fatigue PDF Author: Harvey D. Solomon
Publisher: ASTM International
ISBN: 080310944X
Category : Engineering design
Languages : en
Pages : 1289

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High Temperature Fatigue

High Temperature Fatigue PDF Author: R.P. Skelton
Publisher: Springer Science & Business Media
ISBN: 940093453X
Category : Technology & Engineering
Languages : en
Pages : 330

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Book Description
About 35 years ago, thermal fatigue was identified as an important phenomenon which limited the lifetime of high temperature plant. In the intervening years many investigations have been carried out, primarily to give guidance on likely endurance (especially in the presence of time dependent deformation) but latterly, with the introduction of sophisticated testing machines, to provide knowledge of the underlying mechanisms of failure. A previous edited book (Fatigue at High Temperature, Elsevier Applied Science Publishers, 1983) summarised the state-of-the-art of high temperature fatigue testing and examined the factors influencing life, such as stress state, environment and microstructural effects. It also considered, in some detail, cyclic crack growth as a more rigorous approach to life limitation. The aim of the present volume (which in style and format follows exactly the same lines as its predecessor) is once again to pursue the desire to translate detailed laboratory knowledge into engineering design and assessment. There is, for example, a need to consider the limitations of the laboratory specimen and its relationship with engineering features. Many design procedures still rely on a simple endurance approach based on failure of a smooth specimen, and this is taken to indicate crack initiation in the component. In this volume, therefore, crack propagation is covered only incidentally, emphasis being placed instead on basic cyclic stress strain properties, non-isothermal behaviour, metallography, failure criteria and the need for agreed testing procedures.

Low-cycle Thermal Fatigue

Low-cycle Thermal Fatigue PDF Author: Gary R. Halford
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 120

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Fatigue at High Temperature

Fatigue at High Temperature PDF Author:
Publisher: ASTM International
ISBN: 9780803100169
Category : Science
Languages : en
Pages : 166

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Thermal fatigue of materials and components

Thermal fatigue of materials and components PDF Author: David A. Spera
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 274

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Correlation of Thermal Fatigue with Mean Temperature and Influence of Combined Stresses

Correlation of Thermal Fatigue with Mean Temperature and Influence of Combined Stresses PDF Author: Harry Majors
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 230

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High-temperature Low-cycle Fatigue Experiments on Hastelloy X

High-temperature Low-cycle Fatigue Experiments on Hastelloy X PDF Author: A. E. CARDEN
Publisher:
ISBN:
Category :
Languages : en
Pages : 20

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