The long-term stability of residual stresses in steel

Abstract There is frequent debate over the long-term stability of calibration specimens. It is an essential component of monitoring, especially for X-ray diffraction equipment used to determine residual stresses. If residual stresses are stable, a second consideration is that the residual stress sho...

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Autor principal:	Eckehard Mueller
Formato:	article
Lenguaje:	EN
Publicado:	Springer 2021
Materias:	Residual stress Stress relaxation Long term stability Experimental techniques Science Q Technology T
Acceso en línea:	https://doaj.org/article/5973d578c1d145388ebc51bb01b4331c
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spelling	oai:doaj.org-article:5973d578c1d145388ebc51bb01b4331c2021-11-21T12:12:41ZThe long-term stability of residual stresses in steel10.1007/s42452-021-04867-z2523-39632523-3971https://doaj.org/article/5973d578c1d145388ebc51bb01b4331c2021-11-01T00:00:00Zhttps://doi.org/10.1007/s42452-021-04867-zhttps://doaj.org/toc/2523-3963https://doaj.org/toc/2523-3971Abstract There is frequent debate over the long-term stability of calibration specimens. It is an essential component of monitoring, especially for X-ray diffraction equipment used to determine residual stresses. If residual stresses are stable, a second consideration is that the residual stress should not be close to 0 MPa. If such specimens are available for monitoring, it is more sensitive concerning changes. These are key requirements when developing calibration specimens. In this study five specimens were observed, one of them was tested for more than 20 years. The stresses were determined with X-ray diffractometers. In the last four years two different X-ray methods for determination were used. It can be shown that high compressive residual stress does not change in steel if the specimens had no dynamic or static load and were stored under normal laboratory conditions. Article Highlights Finding a material in which compressive residual stress is stable Showing that the stability of compressive residual stress is over a long term The stability of the compressive residual stress is in a great rangeEckehard MuellerSpringerarticleResidual stressStress relaxationLong term stabilityExperimental techniquesScienceQTechnologyTENSN Applied Sciences, Vol 3, Iss 12, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Residual stress Stress relaxation Long term stability Experimental techniques Science Q Technology T
spellingShingle	Residual stress Stress relaxation Long term stability Experimental techniques Science Q Technology T Eckehard Mueller The long-term stability of residual stresses in steel
description	Abstract There is frequent debate over the long-term stability of calibration specimens. It is an essential component of monitoring, especially for X-ray diffraction equipment used to determine residual stresses. If residual stresses are stable, a second consideration is that the residual stress should not be close to 0 MPa. If such specimens are available for monitoring, it is more sensitive concerning changes. These are key requirements when developing calibration specimens. In this study five specimens were observed, one of them was tested for more than 20 years. The stresses were determined with X-ray diffractometers. In the last four years two different X-ray methods for determination were used. It can be shown that high compressive residual stress does not change in steel if the specimens had no dynamic or static load and were stored under normal laboratory conditions. Article Highlights Finding a material in which compressive residual stress is stable Showing that the stability of compressive residual stress is over a long term The stability of the compressive residual stress is in a great range
format	article
author	Eckehard Mueller
author_facet	Eckehard Mueller
author_sort	Eckehard Mueller
title	The long-term stability of residual stresses in steel
title_short	The long-term stability of residual stresses in steel
title_full	The long-term stability of residual stresses in steel
title_fullStr	The long-term stability of residual stresses in steel
title_full_unstemmed	The long-term stability of residual stresses in steel
title_sort	long-term stability of residual stresses in steel
publisher	Springer
publishDate	2021
url	https://doaj.org/article/5973d578c1d145388ebc51bb01b4331c
work_keys_str_mv	AT eckehardmueller thelongtermstabilityofresidualstressesinsteel AT eckehardmueller longtermstabilityofresidualstressesinsteel
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The long-term stability of residual stresses in steel

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