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首页> 外文会议>Pacific Rim International Conference on Advanced Materials and Processing(PRICM 5) pt.1; 20041102-05; Beijing(CN) >Microstructure Control of Co_3AlC-base Heat Resistant Alloys using Optical Floating Zone Melting
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Microstructure Control of Co_3AlC-base Heat Resistant Alloys using Optical Floating Zone Melting

机译：Co_3AlC基耐热合金的光学浮区熔化控制

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摘要

Aiming for further improvement of mechanical properties of Co_3AlC-based heat resistant alloys, microstructure control was conducted using optical floating zone (OFZ) melting. Unidirectional solidification was performed to align Co_3AlC/α(Co) two-phase eutectic microstructure. Co_3AlC single phase poly-crystal alloys were successfully fabricated for the first time by taking advantage of OFZ. Mechanical properties were evaluated for selected alloys by compression tests at ambient temperature, 1073 K and 1273 K. Excellent elevated temperature strength is achieved in single phase alloys and ductility is sufficiently improved in Co_3AlC/α(Co) two-phase alloys.
机译：为了进一步改善基于Co_3AlC的耐热合金的机械性能，使用光学浮区（OFZ）熔化进行了微结构控制。进行单向凝固以对齐Co_3AlC /α（Co）两相共晶组织。利用OFZ首次成功制备了Co_3AlC单相多晶合金。通过在环境温度1073 K和1273 K下进行压缩测试，评估了所选合金的机械性能。单相合金具有出色的高温强度，而Co_3AlC /α（Co）两相合金的延展性得到了充分改善。

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