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, potentiostat and ultrasonic-induced cavitation device. Key words: aluminium alloy; laser-cladding; particle reinforced metal matrix composite; cavitation erosion CLC number: TN249 Document code: A 1 ... of aluminium matrix composites to improve the ability of the resistance to erosion and wear[1-5]. Cavitation erosion is a peculiar form of wear. It is caused by the high-speed relative movement between......
键词:钛合金;表面纹理;空蚀;激光加工 中图分类号:TH117.1 文献标识码:A Effects of surface texture manufacturing by laser on cavitation characteristics of Ti6Al4V alloy LIAN Feng, ZHANG Hui-chen, GAO... were measured by ultrasonic vibrator. The cavitation erosion topographies of Ti6Al4V alloy specimens were analyzed by scanning electron microscopy and optical microscopy. The results indicate......
%) was larger than that of ZHMn55-3-1 (23%). The high cavitation erosion resistance of ZQMn12-8-3-2 was mainly attributed to its lower stacking fault energy (SFE), the higher microhardness and work-hardening ability as well as the favorable propagation of cavitation cracks for ZQMn12-8-3-2, i.e., parallel to the surface rather than perpendicular to the surface for ZHMn55-3-1.关键词:......
of NaHCO3 solution on cavitation erosion of copper alloy[J]. Results in Physics, 2019, 13: 102145. [11] TURNBULL A, RYAN M, WILLETTS A, et al. Corrosion and electrochemical behaviour of 316L stainless steel... Haixia, KANG Can, et al. Ultrasonic cavitation erosion behavior and mechanism of Pb-brass alloy in different liquids[J]. Surface Technology, 2018, 47(1): 109-115. [17] LIU Haixia, KANG Can, SOYAMA H......
and swell after sintering. The forming ability of HVC lies on impact energy and powder filling amount simultaneously. Therefore, mass energy density can characterize the green density achieved at different powder filling amount and impact energy. For pure Ti powder, the green relative density is 96.0% when the mass energy density is 118 J/g. Key words: Ti powder; high velocity compaction......
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钛合金发生反应的耐火材料. 近年来,国内外学者对熔炼钛合金用的耐火材料做了大量研究,由于氧化物耐火材料具有高的热力学稳定性与低的价格,因而备受关注.如ZrO2,CaO和Y2O3等.然而,实验表明,ZrO2会与钛合金反应生成α-Ti(Zr,O)[4],使合金受到污染.CaO热力学稳定性较高,但其抗水化性差[5],易导致它在反复使用过程中使得合金增氧严重,影响合金性能.TETSUI等[6]使用Y2O3...(BaZr0.97Y0.03O3,记为BZY),固相合成的粉料添加烧结助剂TiO2,无水乙醇作为介质通过球磨机混料均匀后,使用冷等静压,用固相烧结在1750 ℃烧结6 h得到U型坩埚.坩埚高50 mm,直径40 mm. Ti2Ni(63%Ti,质量分数)母合金是用海绵钛和纯镍板按比例在水冷铜感应炉中制备而成.使用真空感应熔炼,当合金熔化时,升温至1500 ℃保温5 min,浇注并随炉冷却后得到合金锭.母合金使用BZY......