中国有色金属学报（英文版）
中國有色金屬學報（英文版）
중국유색금속학보（영문판）
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2011年
11期
2433-2437
,共5页
Fe-(P,C)基块体金属玻璃%铌%形成能力%力学性能
Fe-(P,C)基塊體金屬玻璃%鈮%形成能力%力學性能
Fe-(P,C)기괴체금속파리%니%형성능력%역학성능
Fe-(P,C)-based bulk metallic glass%Nb%forming ability%mechanical properties
采用铜模吸铸法制备不同直径的Fe71Mo5-xNbxP12C10B2(x=1～5)合金棒.利用X射线衍射、差热分析和压缩测试等手段分别研究Nb替换Mo对Fe71Mo5P12C10B2合金的结构、热稳定性及室温力学性能的作用.结果表明:随着Nb含量的增加,合金的玻璃形成能力有所降低,而断裂强度逐步增加；Fe71Mo2Nb3P12C10B2金属玻璃的断裂强度高达4.0 GPa,且具有1％的室温压缩塑性.Fe-P-C基块体金属玻璃断裂的强度提高的原因主要是由于Nb替换Mo有利于形成似网格状结构且增强原子间结合力.
採用銅模吸鑄法製備不同直徑的Fe71Mo5-xNbxP12C10B2(x=1～5)閤金棒.利用X射線衍射、差熱分析和壓縮測試等手段分彆研究Nb替換Mo對Fe71Mo5P12C10B2閤金的結構、熱穩定性及室溫力學性能的作用.結果錶明:隨著Nb含量的增加,閤金的玻璃形成能力有所降低,而斷裂彊度逐步增加；Fe71Mo2Nb3P12C10B2金屬玻璃的斷裂彊度高達4.0 GPa,且具有1％的室溫壓縮塑性.Fe-P-C基塊體金屬玻璃斷裂的彊度提高的原因主要是由于Nb替換Mo有利于形成似網格狀結構且增彊原子間結閤力.
채용동모흡주법제비불동직경적Fe71Mo5-xNbxP12C10B2(x=1～5)합금봉.이용X사선연사、차열분석화압축측시등수단분별연구Nb체환Mo대Fe71Mo5P12C10B2합금적결구、열은정성급실온역학성능적작용.결과표명:수착Nb함량적증가,합금적파리형성능력유소강저,이단렬강도축보증가；Fe71Mo2Nb3P12C10B2금속파리적단렬강도고체4.0 GPa,차구유1％적실온압축소성.Fe-P-C기괴체금속파리단렬적강도제고적원인주요시유우Nb체환Mo유리우형성사망격상결구차증강원자간결합력.
Bulk metallic glass (BMG) rods Fe71Mo5-xNbxP12C10B2 (x=l,2,3,4 and 5) with diameter of 1 or 2 mm were synthesized by copper mold casting.The effects of Nb substitution for Mo on the structure,thermal and mechanical properties of Fe71MO5 xNbxP12C10B2 alloys were studied by X-ray diffraction,differential scanning calorimetry and compressive testing.The results show that the substitution of Nb for Mo leads to a decreased glass forming ability,but with plasticity of 1.0％,the fracture strength of Fe71Mo2Nb3P12C10B2 alloy increases up to 4.0 GPa.The improvement of the fracture strength is discussed in terms of the enhancement of atomic bonding nature and the favorite formation of a network-like structure due to the substitution of Nb for Mo.
