Discrepancies between calculated and measured residual stresses in quenched pure iron cylinder

Mitter, Werner; Rammerstorfer, F.G.; Gründler, O.; Wiedner, Gerhard

doi:10.1179/mst.1985.1.10.793

Cited by 12 publications

(3 citation statements)

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“…Bühler et al [10] measured residual stress distributions in quenched cylindrical specimens under a variety of conditions by the Sachs method [11]. Although the results included measurements of water-quenched pure iron cylinders, Mitter et al [12] performed quenching experiments and stress measurements under similar conditions. Then, the results were compared with their own simulation studies.…”

Section: Distortion and Residual Stress In Cylindersmentioning

confidence: 99%

“…The results may not be sufficiently consistent. This is thought to be due to uncertainties in not only the simulation, but also the stress measurement by the Sachs method, as pointed out by Mitter et al [12]. Bühler and Scheil [14] reported on the same measurements of residual stress in water quenched Fe-Ni alloy cylinders.…”

Section: Distortion and Residual Stress In Cylindersmentioning

confidence: 99%

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A Brief Review on Validation for Heat Treatment Simulation

Arimoto¹

2021

Heat Treating Conference

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Heat treatment simulation has progressed to the stage where several commercial software are available. Validations of simulation functions using experimental results contributed to this realization. Organizing information on the validations may be effective for maintaining the functions and educating users about the nature of the phenomena. For this reason, the author here briefly reviews mainly his validation cases. Since experiments using specimens having relatively simple shapes can reveal the essence of complex phenomena, the results have been used in the validations. When the basic functions such as heat transfer, phase transformation, latent heat, and hardness prediction were comprehensively validated in the early stages of software development, the author used experimental results of the inverse hardening in quenched steel cylinders. After that, his validations of the software at the stage where adding stress and strain analysis functions, used effectively measurement data of length and diameter changes, and residual stress distributions in normally quenched steel cylinders. While, it was also worth to validate curving in long specimens cooled unevenly, which included a case of specimens with a similar cross-section to the Japanese sword. In addition, the author validated distortions and residual stresses in carburized and quenched, induction hardened, and also nitrided specimens.

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Section: Distortion and Residual Stress In Cylindersmentioning

confidence: 99%

Section: Distortion and Residual Stress In Cylindersmentioning

confidence: 99%

A Brief Review on Validation for Heat Treatment Simulation

Arimoto¹

2021

Heat Treating Conference

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“…This interest has its importance due to the fact that the presence of the residual stress interferes with the fatigue strength of the Materials [5].…”

Section: The Processing Variablementioning

confidence: 99%

Residual Stresses in Case Hardened Materials

Palaniradja¹,

Alagumurthi²,

Soundararajan³

2010

TOMSJ

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Fatigue behavior of case hardened parts depend to a great extent on the type of residual stresses developed in the components. Topography and metallurgical effects were the two elements which contribute much to surface integrity. Micro hardness of the gas carburized (EN 33 and EN 36) and Induction hardened (AISI 1040 and AISI 6150) specimens obtained during experiments, showed that there was gradual decrease of hardness from surface to sub-surface. Results also showed that more the hardness and case depth, the more was the residual stress. The optimum results gave the maximum compressive residual stress in both the gas carburizing and Induction hardening process irrespective of the mechanisms involved in the process. The X-ray diffraction test showed that the distribution of residual stress was uniform both on the surface and beneath the surface. The magnitude and distribution of residual stress obtained from the experiment agreed with the FEM results found in literatures.

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Complete Evaluation of Residual Stress States Using Acoustoelasticity

Johnson

Dike

1988

Review of Progress in Quantitative Nondestructive Evaluation

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The acoustoelastic technique for the nondestructive evaluation of stress is based on the stress-induced changes in the speed of wave propagation. In the application of acoustoelasticity. three different approaches have been adopted. For the sake of discussion. we will consider the case of a plane state of stress in an initially isotropic material. The most common technique uses shear waves propagating normal to the plane of stress [1.2]. This technique takes advantage of the stress-induced birefringence of the shear waves which. in the case considered. is proportional to the difference in the principal stresses. Another technique which is currently receiving considerable attention involves two shear-horizontal (SH) waves propagating in the principal stress directions. with their polarizations in the other principal direction [3-5]. In this approach. the difference in the speeds of the two SH waves can be related to the difference in principal stresses directly. Knowledge of the material's elastic or acoustoelastic constants is not required. The final approach uses a single longitudinal wave propagating perpendicular to the plane of stress. with the change in the speed of this wave being proportional to the sum of the principal stresses [6.7].

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Discrepancies between calculated and measured residual stresses in quenched pure iron cylinder

Cited by 12 publications

References 0 publications

A Brief Review on Validation for Heat Treatment Simulation

A Brief Review on Validation for Heat Treatment Simulation

Residual Stresses in Case Hardened Materials

Complete Evaluation of Residual Stress States Using Acoustoelasticity

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