The Room Temperature and Elevated Temperature Fracture Toughness Response of Alloy A-286Source: Journal of Engineering Materials and Technology:;1978:;volume( 100 ):;issue: 002::page 195Author:W. J. Mills
DOI: 10.1115/1.3443471Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The elastic-plastic fracture toughness (JIc ) response of precipitation strengthened Alloy A-286 has been evaluated by the multi-specimen R-curve technique at room temperature, 700 K (800°F) and 811 K (1000°F). The fracture toughness of this iron-base superalloy was found to decrease with increasing temperature. This phenomenon was attributed to a reduction in the materials’s strength and ductility at elevated temperatures. Electron fractographic examination revealed that the overall fracture surface micromorphology, a duplex dimple structure coupled with stringer troughs, was independent of test temperature. In addition, the fracture resistance of Alloy A-286 was found to be weakened by the presence of a nonuniform distribution of second phase particles throughout the matrix.
keyword(s): Temperature , Alloys AND Fracture toughness ,
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| contributor author | W. J. Mills | |
| date accessioned | 2017-05-08T23:04:55Z | |
| date available | 2017-05-08T23:04:55Z | |
| date copyright | April, 1978 | |
| date issued | 1978 | |
| identifier issn | 0094-4289 | |
| identifier other | JEMTA8-26861#195_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/91098 | |
| description abstract | The elastic-plastic fracture toughness (JIc ) response of precipitation strengthened Alloy A-286 has been evaluated by the multi-specimen R-curve technique at room temperature, 700 K (800°F) and 811 K (1000°F). The fracture toughness of this iron-base superalloy was found to decrease with increasing temperature. This phenomenon was attributed to a reduction in the materials’s strength and ductility at elevated temperatures. Electron fractographic examination revealed that the overall fracture surface micromorphology, a duplex dimple structure coupled with stringer troughs, was independent of test temperature. In addition, the fracture resistance of Alloy A-286 was found to be weakened by the presence of a nonuniform distribution of second phase particles throughout the matrix. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | The Room Temperature and Elevated Temperature Fracture Toughness Response of Alloy A-286 | |
| type | Journal Paper | |
| journal volume | 100 | |
| journal issue | 2 | |
| journal title | Journal of Engineering Materials and Technology | |
| identifier doi | 10.1115/1.3443471 | |
| journal fristpage | 195 | |
| journal lastpage | 199 | |
| identifier eissn | 1528-8889 | |
| keywords | Temperature | |
| keywords | Alloys AND Fracture toughness | |
| tree | Journal of Engineering Materials and Technology:;1978:;volume( 100 ):;issue: 002 | |
| contenttype | Fulltext |