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TA2工業(yè)純鈦表面攪拌摩擦加工組織及性能
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國(guó)家自然科學(xué)基金 (50774059)


Microstructure and Properties of TA2 Commercially Pure Titanium Surface by Friction Stir Processing
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    摘要:

    對(duì)TA2工業(yè)純鈦成功實(shí)現(xiàn)了攪拌摩擦加工(Friction Stir Processing, FSP)，研究FSP后攪拌區(qū)、熱機(jī)影響區(qū)、熱影響區(qū)組織特征，對(duì)比分析FSP加工區(qū)與母材的顯微硬度及摩擦磨損性能。結(jié)果表明：TA2工業(yè)純鈦表面經(jīng)FSP后，攪拌區(qū)晶粒發(fā)生了劇烈的塑性變形、混合和破碎，實(shí)現(xiàn)組織結(jié)構(gòu)的致密化、均勻化和細(xì)化；加工區(qū)平均硬度相對(duì)母材提高37.5%，當(dāng)摩擦磨損圈數(shù)分別為1000、1500、2000 r時(shí)，摩擦磨損質(zhì)量損失分別比母材減少31.4%、36.6%和46.4%，經(jīng)FSP后TA2工業(yè)純鈦表面硬度和抗摩擦磨損性能明顯提高

    Abstract:

    Friction stir processing (FSP) for TA2 commercially pure titanium was performed. The microstructure characteristics of the stir zone, the thermo-mechanically affected zone and the heat affected zone were investigated. The hardness and wear properties of the base material and the friction stir procession specimen were analyzed contrastively. The results indicate that in the surface of TA2 commercially pure titanium after FSP, the grains of the stir zone undergo plastic deformation, blending and breaking to realize the densification and homogenization of the microstructure. The microhardness of the stir zone is increased by 37.5% compared with that of the base material. When the abrasive wear cycle is 1000, 1500 and 2000 r, the abrasion loss of the stir zone is smaller than that of the base material by about 31.4%, 36.6% and 46.4%, respectively. The microhardness and wear properties of the TA2 commercially pure titanium are greatly improved

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王快社,馬宏剛,,王 文,郭 韡. TA2工業(yè)純鈦表面攪拌摩擦加工組織及性能[J].稀有金屬材料與工程,2011,40(9):1530~1533.[Wang Kuaishe, Ma Honggang, Wang Wen, Guo Wei. Microstructure and Properties of TA2 Commercially Pure Titanium Surface by Friction Stir Processing[J]. Rare Metal Materials and Engineering,2011,40(9):1530~1533.]
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  • 收稿日期:2010-09-15
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