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合金化Mo-3Nb單晶材料的室溫力學(xué)性能
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TG113.251

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Mechanical Properties of Alloying Mo-3Nb Single Crystal Materials in the Room Temperature
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    摘要:

    采用微型樣品測試方法測試了俄羅斯及國產(chǎn)合金化Mo-3Nb單晶的室溫力學(xué)性能。結(jié)果表明：俄羅斯Mo-3Nb單晶屈服強度、抗拉強度、顯微硬度比國產(chǎn)Mo-3Nb單晶要高，而延伸率略低；微觀分析發(fā)現(xiàn)俄羅斯單晶基體Nb含量略高于國內(nèi)研制的單晶且含有一定數(shù)量的棒狀強化物。微觀組織和成分的差異是引起2種Mo-3Nb單晶力學(xué)性能差異的主要原因。

    Abstract:

    The mechanical properties of molybdenum with 3wt% niobium single crystal materials (Mo-3Nb single crystal material) were tested by miniature disk testing method. It is found that the yield stress, the fracture strength and the micro-hardness of Mo-3Nb single crystal materials by Russian supplying were higher than those of the home-made ones, while the elongations of the former material were lower than the later material. However, according to the TEM morphologies, Nb component in Russian supplying materials was a little more than that in the home-made single crystal materials, and some bar-type strengthening phases were observed in Russian supplying materials. Therefore, the difference of the microstructures and the component may cause the mechanical properties difference of the two materials.

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鄭劍平 徐遠超 楊啟法 金志浩 李中奎.合金化Mo-3Nb單晶材料的室溫力學(xué)性能[J].稀有金屬材料與工程,2005,34(11):1827~1829.[Zheng Jianping, Xu Yuanchao, Yang Qifa, Jin Zhihao, Li Zhongkui. Mechanical Properties of Alloying Mo-3Nb Single Crystal Materials in the Room Temperature[J]. Rare Metal Materials and Engineering,2005,34(11):1827~1829.]
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  • 收稿日期:2003-12-01
  • 最后修改日期:2004-10-28
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