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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1247| EFFECT OF HEAT TREATMENT ON HARDNESS AND MICROSTRUCTURE OF MECHANICAL ALLOYED Al‐Co‐Cr‐Cu‐Fe‐Ni‐ Mo MULTI‐COMPONENT SYSTEMS. | |
| CYNTHIA DEISY GOMEZ ESPARZA JOSE GERARDO CABAÑAS MORENO JOSE MARTIN HERRERA RAMIREZ | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| Multi-component systems | |
| The structural evolution of equiatomic Ni‐Co‐Al‐Fe‐Cu‐Mo high entropy alloys during mechanical alloying followed by conventional sintering and annealing at relative high temperatures (1000 and 1100 C) were studied. It was found that solid solutions with simple fcc or bcc crystal structure were formed in these alloys with multiprincipal elements, in both, mechanical alloyed and sintered condition. The sintered products and annealed bulk samples were examined by hardness test. The mean values of Vickers microhardness indicate that the hardest alloy is NiCoAlFeMoCr (980 ± 83 HV0.2), followed by NiCoAlFeMo (915 ± 71 HV0.2), NiCoAlFeCuCr (269 ± 39 HV0.2) and NiCoAlFeCu (261 ± 31 HV0.2). A higher chemical homogenization was achieved after heat treatments, the standard deviation of microhardness measurements get reduced. The microhardness of alloys with Cu was increased after heat treatments between 61 and 79%. In the other hand, the HV microhardness of alloys with Mo only increased in a range between 3 and 7%, except for the NiCoAlFeMoCr alloy whose hardness decreased 22% after heat treatment at 1100 C. | |
| 2013 | |
| Memoria de congreso | |
| Inglés | |
| OTRAS | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Artículos de Congresos |
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