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albased
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  al-based
     TENSILE PROPERTIES AND CREEP RESISTANCE OF Fe_3Al-BASED ALLOYS CONTAINING NIOBIUM
     TENSILE PROPERTIES AND CREEP RESISTANCE OF Fe_3Al-BASED ALLOYS CONTAINING NIOBIUM
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     Microstructure and Room Temperature Tensile Properties of Fe_3Al-based Alloys with Cerium Addition
     Microstructure and Room Temperature Tensile Properties ofFe_3Al-based Alloys with Cerium Addition
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     al.
     al.
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     , AL ?
     , AL ?
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     A Summary of Task-based Learning for Adult Learners
     “TASK-BASED”教学法综述
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     MICROSTRUCTURE AND MECHANICAL PROPERTIES OF RAPIDLY SOLIDIFIED Al-Fe BASED ALLOYS
     MICROSTRUCTURE AND MECHANICAL PROPERTIES OF RAPIDLY SOLIDIFIED AlFe BASED ALLOYS
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     WELDAEILITY OF Al-Li ALLO0YS
     AlLi合金的可焊性研究
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  albased
It was found that the penetration ability of ceramic particulates that are normally encountered in Albased metal matrix composites (MMCs) decreases in the following sequence: TiB2, Al2O3, SiC, and graphite.
      


The cyclic oxidation behavious of Fe-28Al-5Cr-O. 1Zr (at%) and Fe-28Al-5Cr-0. 5Nb (at%) alloys have been investigated in air at elevated temperature.The results show that the distinct whisker-like oxides were formed on the surface of Zr-containing Fe3Al based alloy after 500 h cyclic oxidation at 1000℃. The results also indicate that the addition of small amount of Zr to Fe3Al based alloy can improve its adherence strength between the scale and metal substrate and is beneficial to the oxidation resistance. However,...

The cyclic oxidation behavious of Fe-28Al-5Cr-O. 1Zr (at%) and Fe-28Al-5Cr-0. 5Nb (at%) alloys have been investigated in air at elevated temperature.The results show that the distinct whisker-like oxides were formed on the surface of Zr-containing Fe3Al based alloy after 500 h cyclic oxidation at 1000℃. The results also indicate that the addition of small amount of Zr to Fe3Al based alloy can improve its adherence strength between the scale and metal substrate and is beneficial to the oxidation resistance. However, for the Nb-containing Fe3Albased alloy, porous convolutions oxides were formed after 350 h cyclic oxidation at 1000℃, and this type of oxides has not been found to contribute to the oxidation resistance.

用循环氧化法研究了Fe-28Al-5Cr-0.1Zr(at%)和Fe-28Al-5Cr-0.5Nb(at%)金属间化合物的高温氧化行为.结果表明,含Zr的Fe3(Al,Cr)金属间化合物在800℃、1000℃、500h循环氧化后形成一个独特的晶须状氧化物层,微量Zr能增加氧化物层与基体金属的粘附性,从而提高了该合金的高温抗氧化性能.而含Nb的Fe3(Al,Cr)金属间化合物在1000℃、350h循环氧化后形成多孔的卷绕状形貌,对Fe3(Al,Cr)金属间化合物的高温抗氧化性没有改善.

The microstructure and mechanical properties of Fe3Albased alloys containing tungsten were investigated. Tungsten added to Fe3Albased alloys results in significant increases of tensile strength and creep rupture life, but slight decrease of RT ductility. The addition of tungsten combined with niobium or molybdenum is more effective on improving creep resistance and yield strength at the high temperature of 600 . Microstructure observations indicate that the addition of tungsten causes the microstructure...

The microstructure and mechanical properties of Fe3Albased alloys containing tungsten were investigated. Tungsten added to Fe3Albased alloys results in significant increases of tensile strength and creep rupture life, but slight decrease of RT ductility. The addition of tungsten combined with niobium or molybdenum is more effective on improving creep resistance and yield strength at the high temperature of 600 . Microstructure observations indicate that the addition of tungsten causes the microstructure refinement and formation of M6C type precipitates which strengthen both the matrix and grain boundaries.

1INTRODUCTIONIronaluminidesbasedonFe3Aloferexcellentoxidationandsulfidationresistance,withalowermaterialcostanddensitythanst...

alBased on properties of soybean protein fiber, pretreating, dyeing and after treating of soybean protein fiber/silk mixture were carried out.

根据大豆蛋白纤维的特性 ,织物前处理采用氧漂和增白 ,以提高纤维白度 ;染色采用活性工艺 ;后整理工艺则采用间接烘干 ,严格控制温度

 
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