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首页> 外文期刊>Philosophical Magazine Letters >Microstructural evolutions and hardness during heat treatment of Al64Cu20Fe12Si4 quasicrystal alloy
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Microstructural evolutions and hardness during heat treatment of Al64Cu20Fe12Si4 quasicrystal alloy

机译：Al 64 Cu 20 Fe 12 Si 4 准晶体合金热处理过程中的组织演变和硬度

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The microhardness and microstructural characteristics and subsequent heat treatment of conventionally solidified Al64Cu20Fe12Si4 quasicrystal were investigated by X-ray diffractometry (XRD), scanning electron microscopy (SEM) together with energy dispersive spectroscopy (EDS), differential thermal analysis (DTA), and Vickers microhardness tester. XRD analysis indicated that the conventionally solidified samples showed a quasicrystalline icosahedral phase (i-phase) together with cubic β-AlFe, tetragonal θ-Al2Cu, and monoclinic λ-A13Fe4 crystal phases. However, the i-phase together with cubic β-AlFe and monoclinic λ-A13Fe4 phases observed heat threaded samples. As-cast and subsequently heat-treated quasicrystal samples were measured using a microhardness test device. Vickers microindentation tests were carried out on the heat-treated quasicrystal samples with the load ranging from 1 to 500 mN at room temperature. The melting point of the i-phase was determined as 900°C by DTA examinations.View full textDownload full textKeywordsmechanical testing, microhardness, quasicrystal, scanning electron microscopyRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/09500839.2012.669056
机译：常规凝固的Al 64 Cu 20 Fe 12 Si 4 准晶体的显微硬度和显微组织特征及后续热处理为由X射线衍射（XRD），扫描电子显微镜（SEM）以及能量色散光谱（EDS），差热分析（​​DTA）和维氏显微硬度测试仪进行了研究。 X射线衍射分析表明，常规凝固的样品显示出准晶二十面体相（i相）以及立方β-AlFe，四方β-Al 2 Cu和单斜α-A 13 Fe 4 晶相。但是，i相与立方β-AlFe和单斜β-A 13 Fe 4 相一起观察到热螺纹样品。使用显微硬度测试仪测量铸态和随后热处理的准晶体样品。维氏微压痕试验是在室温下对热处理的准晶体样品进行的，其载荷范围为1至500 mN。 i相的熔点通过DTA检查确定为900°C。查看全文下载全文关键字机械测试，显微硬度，准晶体，扫描电子显微镜netvibes，推特，technorati，可口，linkedin，facebook，stumbleupon，digg，google，更多”，发布：“ ra-4dff56cd6bb1830b”};添加到候选列表链接永久链接http://dx.doi.org/10.1080/09500839.2012.669056

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