Publication:
Relationship between compressive residual stress relaxation and microhardness reduction after cyclic loads on shotpeened ASTM A516 grade 70 steel

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dc.citedby4
dc.contributor.authorIsa M.R.en_US
dc.contributor.authorZaroog O.S.en_US
dc.contributor.authorAli F.S.en_US
dc.contributor.authorid57193957146en_US
dc.contributor.authorid57189246634en_US
dc.contributor.authorid57201480148en_US
dc.date.accessioned2023-05-29T06:57:02Z
dc.date.available2023-05-29T06:57:02Z
dc.date.issued2018
dc.descriptionCorrosion resistance; Cyclic loads; Microhardness; Shot peening; Stress analysis; Stress relaxation; Yield stress; Compressive residual stress; Hardness values; High load; Low load; Random coverages; Relaxation; Relaxation of residual stress; Steel shot; Residual stressesen_US
dc.description.abstractShot peening process is a cold performed function to enhance the mechanical properties which is widely used in many industries. This process introduces compressive residual stress which was proven to increase the fatigue life, geometry stability and corrosion resistance. However, the benefit of the residual stress is still unstable due to the relaxation during the operation. This paper will study on the trend of the relaxation of residual stress against cyclic loading as well as the change in the hardness. The material used in this study is carbon steel ASTM A516/ SA 516 Grade 70. Shot peening process with steel shots was applied to the samples to introduce compressive residual stress in the samples. Cyclic load was applied to samples after shot peening process with low load of 52Mpa (20% of Yield Strength) and high load of 208Mpa (80% of Yield Strength). The measurement of residual stress using X-Ray diffraction and hardness test was done on the samples to study the trend of the relaxation of residual stress and the change in hardness values. The result shows that more relaxation of residual stress occurs if the applied cyclic load is higher. The change of hardness trend is found non-sequenced in this study due to random coverage of shot peening. � 2018 Trans Tech Publications, Switzerlanden_US
dc.description.natureFinalen_US
dc.identifier.doi10.4028/www.scientific.net/KEM.765.232
dc.identifier.epage236
dc.identifier.scopus2-s2.0-85045062971
dc.identifier.spage232
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85045062971&doi=10.4028%2fwww.scientific.net%2fKEM.765.232&partnerID=40&md5=ad4d128d5e369b6f877299336ccdf106
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/24211
dc.identifier.volume765 KEM
dc.publisherTrans Tech Publications Ltden_US
dc.sourceScopus
dc.sourcetitleKey Engineering Materials
dc.titleRelationship between compressive residual stress relaxation and microhardness reduction after cyclic loads on shotpeened ASTM A516 grade 70 steelen_US
dc.typeConference Paperen_US
dspace.entity.typePublication
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