Results 51 to 60 of about 13,047 (166)
Investigation of Irradiation Behavior and Corrosion Properties of the N36 Zr Alloy Developed by China [PDF]
, 2016 本文对中国核动力研究设计院自主研发的两种制备工艺的N36锆合金进行了微观组织与微观化学分析和表征。采用400千伏离子注入机对锆合金进行辐照，分析辐照后的微观结构，以研究其辐照行为与规律。采用高温高压反应釜对原始态锆合金和受辐照的锆合金进行了腐蚀，分析了不同实验条件下锆合金表面氧化层、氧化膜/金属界面和金属基体的微观结构演变规律与特点。 增加冷轧次数与退火过程会导致锆合金的晶粒尺寸变大和不均匀化，平均尺寸从3.9μm长大到6.0μm；且析出相的尺寸变大、弥散程度降低，平均尺寸从74.6nm长大至89 ...
刘臣伟
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Effect of hot isostatic pressing temperature on the microstructure and properties of Mo2FeB2-based cermets coatings [PDF]
Mo2FeB2-based cermet coatings were prepared on 06Cr13Ni4Mo steels by hot isostatic pressing (HIP) process, and the effects of HIP temperatures on the microstructures and mechanical properties of the Mo2FeB2-based cermet coatings were studied. The results
HOU Shipu +9 more
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Comparison between the microstructures of M2 steel cast by the water-cooled copper mould and the sand mould [PDF]
, 2016 M2 steel was melted by a 25 kg high-frequency vacuum induction furnace and was cast to ingots with a cross section of 100 mm×50 mm by the water-cooled copper mould and the sand mould.The effects of cooling rate on the ingot's secondary dendrite arm ...
CHOU Sheng-tao, ZHAO Zhi-gang, ZHU Rong
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Diffusion bonding (DB) of near‐α titanium alloys requires high temperatures, which can cause grain coarsening, structural deformations, and degradation of the workpiece's mechanical characteristics. In this study, thermal hydrogen processing (THP) was applied to Ti65, combined with selective magnetron sputtering of a Ti‐Al thin film to promote
Liang‐Wei Kang +9 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 1997 摘 要 将钛涂层317L 接骨板植入电子线照射的犬右下颌骨体部, 用透射电镜(TEM)观察相邻骨膜超微 结构变化, 结果显示, 钛涂层317L 接骨板组相邻骨膜超微结构损伤比未喷涂钛层的317L 接骨板对照组轻微。 可能与未喷涂钛层的317L 接骨板所释放出来的毒性较大的C r 、Ni 离子对组织细胞的再损伤有关, 而钛涂层 317 L 接骨板表面呈纯钛相, 不会造成组织细胞超微结构明显损伤。
李少萍 朱明仁 姚小武 殷学民 任材年
doaj
Microstructure and carbides of as-cast high carbon martensitic stainless steel 8Cr13MoV [PDF]
, 2016 The solidification process of 8Cr13MoV martensitic stainless steel was calculated by using Thermo-Calc software. The solidification microstructure, morphology and type of carbides were analyzed by optical microscopy, scanning electron microscopy and X ...
LI Jing +5 more
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Review of additively manufactured zinc alloys by laser powder bed fusion for biomedical applications
Rare Metals, Volume 44, Issue 11, Page 8262-8291, November 2025.Graphical abstract AbstractZinc (Zn) and its alloys have emerged as promising candidates for biomedical materials, owing to their controlled degradation kinetics, intrinsic biocompatibility, and the release Zn2+ ions which are known to promote bone regeneration and tissue healing.
Xuan Yang +5 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2007 【目的】探讨大鼠牙囊细胞体外培养的方法。【方法】分离出大鼠牙囊组织,分别采用组织块培养法、细胞消化分散法、及改良组织块法进行牙囊细胞原代及传代培养,倒置相差显微镜下进行细胞形态学观察,透射电镜观察细胞超微结构。【结果】培养至第3天,倒置相差显微镜观察发现,采用组织块培养法,见少数细胞从组织块爬出;而细胞消化分散法则可获得数量多的牙囊细胞,但与杂质细胞混杂生长;改良组织块法见量多、相对纯的牙囊细胞。电镜下牙囊细胞无桥粒,胞浆中含有高密度电子颗粒和大量粗面内质网。组织块法 ...
谷海晶, 凌均棨, 杜宇
doaj
Friction and wear properties of ultrafine grain Ti-8Mo-3Fe alloys fabricated by MA-SPS [PDF]
, 2017 The friction and wear properties of ultrafine grain Ti-8Mo-3Fe alloy fabricated by mechanical alloying (MA) and subsequent spark plasma sintering (SPS) were investigated in SBF simulated body fluid.
LU Xin +4 more
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Zhongshan Daxue xuebao. Yixue kexue ban, 2009 【目的】 探讨心肺复苏后早期大鼠脑组织基质金属蛋白酶9(MMP9)的表达和血脑屏障的变化规律65377;【方法】 将80只大鼠随机分为假手术组(n = 40)和复苏组(n = 40)65377;假手术组仅进行麻醉和气管插管65380;血管穿刺,不进行窒息,复苏组用气管夹闭窒息法致使心跳骤停后进行复苏,其他与对照组相同,分别在065380;365380;965380;24 h和48 h 5个时间点处死大鼠后,取样,测定脑组织MMP9的表达65380;MMP9 mRNA65380 ...
doaj