Microstructure/Properties Relationship of Advanced Heat-Resistant Intermetallics TiAl(Nb,Cr,Zr) After Casting and Float Zone Processing

机译：高级耐热物质金属间（NB，CR，Zr）铸造浮区加工的微观结构/性能关系

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New Ti-44Al-5Nb-3Cr-1.5Zr (at.%) β-stabilized intermetallic alloy was synthesized by the electron beam casting and afterwards re-solidified by the high-gradient (300 °C cm~(-1)) induction float zone (FZ) technique. FZ-processing led to the ordered microstructure creation consisting of volumetrically prevailing (γ + α_2) lamellar colonies separated by minor seam-like γ-granular interlayers, and the least intergranular quota of β(Ti)/B2 phase. The optimum phase balance, submicron interlamellar spacing and preferable alignment of lamellae along the thermal gradient were controlled by FZ-conditions. Unique microstructural adjustment enhances drastically the high-temperature yield strength, Young modulus and creep resistance. Thus the thermal limit of γ-TiAl(Nb,Cr,Zr) structural applicability could be extended from 750–800 °C towards 900–950 °C.

机译：通过电子束铸件合成新的Ti-44AL-5NB-3CR-1.5ZR（AT.％）β-稳定的金属间合金。之后通过高梯度（300℃Cm〜（-1））诱导重新固化浮区（FZ）技术。 FZ处理导致由由小接缝γ-粒状中间层分离的体积普遍（γ+α_2）层状组成的有序的微观结构，以及β（Ti）/ B2相的最小晶间配额。通过FZ条件控制沿着热梯度的最佳相平衡，亚微米层间距和Lamellae的优选对准。独特的微观结构调节急剧增强了高温屈服强度，幼年模量和蠕变性。因此，γ-Tial（Nb，Cr，Zr）结构适用性的热限率可以延伸到900-950℃。

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《International Multidisciplinary Microscopy and Microanalysis Congress》|2017年|xx 255 pages :|共7页
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A.V. Kartavykh; M.V. Gorshenkov; A.V. Korotitskiy;
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中图分类 TH742-532;
关键词
electron; beam; induction;

机译：电子;梁;诱导;

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专利

1. Microstructure and mechanical properties control of gamma-TiAl(Nb,Cr,Zr) intermetallic alloy by induction float zone processing [J] . Kartavykh A. V., Asnis E. A., Piskun N. V., Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2015,第Suppla1期

机译：感应浮区法控制γ-TiAl（Nb，Cr，Zr）金属间合金的组织和力学性能
2. Room-temperature tensile properties of float-zone processed beta-stabilized gamma-TiAl(Nb,Cr,Zr) intermetallic [J] . Kartavykh A. V., Asnis E. A., Piskun N. V., Materials Letters . 2017,第FEBa1期

机译：浮区处理过的β稳定化的γ-TiAl（Nb，Cr，Zr）金属间化合物的室温拉伸性能
3. Relationship and mechanism between double cold rolling-aging process, microstructure and properties of Cu-Ni-Si alloy prepared by two-phase zone continuous casting [J] . Wanneng Liao, Xuefeng Liu, Yaohua Yang Materials Science and Engineering . 2020,第Octa21期

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4. Microstructure/Properties Relationship of Advanced Heat-Resistant Intermetallics TiAl(Nb,Cr,Zr) After Casting and Float Zone Processing [C] . A.V. Kartavykh, M.V. Gorshenkov, A.V. Korotitskiy International Multidisciplinary Microscopy and Microanalysis Congress . 2017

机译：高级耐热物质金属间（NB，CR，Zr）铸造浮区加工的微观结构/性能关系
5. Using Artificial Microstructures Approach to Decode Microstructure- Property-Processing Relationships in Metallic Glasses and Metallic Glass Architectures. [D] . Chen, Wen. 2016

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6. Data on processing of Ti-25Nb-25Zr β-titanium alloys via powder metallurgy route: Methodology microstructure and mechanical properties [O] . D. Ueda, G. Dirras, A. Hocini, 2018

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7. Advanced Heat-Resistant TiAl (Nb,Cr,Zr)-Based Intermetallics with the Stabilized β(Ti)-Phase [O] . A. V. Kartavykh, M. V. Gorshenkov, A. V. Korotitskiy 2017

机译：具有稳定的β（Ti）-Phase的先进的耐热性（Nb，Cr，Zr）基于金属间化合物
8. Processing-Microstructure-Property Relationships in Advanced Intermetallics [R] . Hardwick, D. A., Martin, P. L. 1998

机译：加工 - 高级金属间化合物的微观结构 - 性质关系

Microstructure/Properties Relationship of Advanced Heat-Resistant Intermetallics TiAl(Nb,Cr,Zr) After Casting and Float Zone Processing

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