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contributor authorAjit K. Roy
contributor authorJoydeep Pal
contributor authorMuhammad H. Hasan
date accessioned2017-05-09T00:37:59Z
date available2017-05-09T00:37:59Z
date copyrightJanuary, 2010
date issued2010
identifier issn0094-4289
identifier otherJEMTA8-27124#011001_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/143364
description abstractThe role of temperature and load ratio (R) on the crack propagation rate (da/dN) of Alloys 276 and 617 under cyclic loading was investigated. The results indicate that the rate of cracking was gradually enhanced with increasing temperature when the R value was kept constant. However, the temperature effect was more pronounced at 100–150°C. Both alloys exhibited maximum da/dN values at a load range of 4.5 kN that corresponds to an R value of 0.1. The number of cycles to failure for Alloy 276 was relatively higher compared with that of Alloy 617, indicating its slower crack-growth rate. Fractographic evaluation of the broken specimen surface revealed combined fatigue and ductile failures.
publisherThe American Society of Mechanical Engineers (ASME)
titleTemperature and Load Ratio Effects on Crack-Growth Behavior of Austenitic Superalloys
typeJournal Paper
journal volume132
journal issue1
journal titleJournal of Engineering Materials and Technology
identifier doi10.1115/1.3184027
journal fristpage11001
identifier eissn1528-8889
keywordsTemperature
keywordsAlloys
keywordsStress
keywordsFracture (Materials)
keywordsSuperalloys
keywordsCrack propagation AND Testing
treeJournal of Engineering Materials and Technology:;2010:;volume( 132 ):;issue: 001
contenttypeFulltext


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