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攪拌摩擦加工Zr41Ti14Cu12.5Ni10Be22.5大塊非晶的組織和性能
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國家重點(diǎn)基礎(chǔ)研究發(fā)展規(guī)劃(“973”計(jì)劃)(2006CB605201)


Structures and Performances of Zr41Ti14Cu12.5Ni10Be22.5 Bulk Amorphous Alloy
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    研究了攪拌摩擦加工對Zr41Ti14Cu12.5Ni10Be22.5大塊非晶的組織和性能影響規(guī)律。結(jié)果表明：攪拌摩擦加工后非晶合金沒有發(fā)生晶化。室溫下準(zhǔn)靜態(tài)壓縮后，母材區(qū)﹑熱影響區(qū)﹑攪拌區(qū)試樣的抗壓強(qiáng)度基本相當(dāng)，但是攪拌區(qū)和熱影響區(qū)的彈性模量明顯提高，攪拌區(qū)和熱影響區(qū)試樣斷裂前均出現(xiàn)鋸齒流變現(xiàn)象，其斷口呈現(xiàn)多重剪切特征，認(rèn)為這與攪拌摩擦加工改變自由體積濃度和分布有關(guān)

    Abstract:

    The effects of friction stir processing on the structures and performances of Zr41Ti14Cu12.5Ni10Be22.5 bulk amorphous alloy were investigated. The results show that the microstructure of the stir zone exhibits amorphous state after friction stir processing. The strength of base metal, heat affecting zone (HAZ) and stir zone are almost similar under room temperature quasi static state compressing. However, the elastic modulus of the stir zone and the HAZ is increased markedly and the serration flow phenomena are found in the compressing curve of HAZ and stir zone before fracture. The fracture surface of stir zone and HAZ exhibit obvious multiple shear characters. It is considered that friction stir processing changes the concentration and distribution of freedom volume in stir zone and HAZ

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付瑞東,楊萬彪,戚 力,馬明臻.攪拌摩擦加工Zr41Ti14Cu12.5Ni10Be22.5大塊非晶的組織和性能[J].稀有金屬材料與工程,2011,40(7):1277~1281.[Fu Ruidong, Yang Wanbiao, Qi Li, Ma Mingzhen. Structures and Performances of Zr41Ti14Cu12.5Ni10Be22.5 Bulk Amorphous Alloy[J]. Rare Metal Materials and Engineering,2011,40(7):1277~1281.]
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  • 收稿日期:2010-07-14
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