microh相关论文
The intermetallic Ti-43Al-2Cr-2Nb(at.%) alloy was directionally solidified in an electromagnetic cold crucible with differ......
Titanium carbonitride thick coating prepared by plasma spray synthesis and its tribological properti
TiCN coating, owing to its superior wear-resistance, has been frequently applied in many fields. TiCN thick coating was ......
To improve the sliding wear resistance of AZ91D magnesium alloy,Cu-based amorphous composite coatings made of Cu47Ti34Zr......
The characteristics of 5A90 Aluminum-Lithium alloy by YAG laser and MIG arc hybrid welding (Hybrid welding) were studied......
采用脉冲电沉积法制备了纳米WC强化镍基复合镀层.探究了表面活性剂(十二烷基硫酸钠,SDS)添加量以及wc粉的湿磨预处理对Ni/nano-WC......
对采用溶液燃烧合成法并结合不同掺杂方法(液-液(WL10)、液-固(WLNO)和固-固(WLO))制备的纳米尺度粉末及采用常压烧结法制备的超细......
利用热处理炉对热轧抗拉强度700 MPa级Nb-Ti微合金钢的激光焊接接头进行了回火处理,研究了回火温度对焊接接头各个微区显微组织和......
The W–Cu–Zn alloy with a-brass matrix and low W–W contiguity was prepared by method of electroless copper plating com......
以NH4SCN,ZnCl2,乙二胺和盐酸为反应原料,采用缓慢降温法,从水溶液中生长了尺寸为11×6×3mm3新的化合物(enH2)0.5[Zn(en)3](SCN)3......
Microstructure and properties of nanocrystalline nickel coatings prepared by pulse jet electrodeposi
The fabrication of nanocrystalline nickel coatings was conducted by pulse jet electrodeposition on the substrate of 45# ......
研究了激光冲击的能量和冲击次数对Q 235B中厚板气体保护焊焊缝显微硬度的影响.试验结果表明,激光冲击的能量越高,Q 235B中厚板气......
熔覆层性能难以满足特定的工艺要求,已成为限制激光熔覆发展的关键因素之一.鉴于此,在45号钢基体上制备出原位生成NbC增强YCF102熔......
通过工艺试验、耐磨试验和显微组织观察分析,研究了氧-乙炔火焰喷焊层的常规性能。试验结果表明:随复合粉末中WC-16Ni含量的提高。涂......
目的:观察含纳米金刚石填料对复合树脂机械性能的影响,探索纳米金刚石的最佳比例.方法:按不同比例将纳米金刚石添加到复合树脂中,......
电弧离子镀膜层中“大颗粒”的存在,降低了膜层质量,限制了其进一步应用。采用俄罗斯UVN0.5D2I离子柬辅助沉积电弧离子镀设备,对高速钢......
该文就精液检测的现状进行评述,提出精液病理学检测的目的、范围和精液脱落细胞学内容以及生精细胞凋亡检测的临床意义,对取代睾丸......
Influence of RE on Ageing Precipitate Characteristics and Softening Resistance of Copper Alloys Cont
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为了提高SKD61模具钢表面的硬度和抗疲劳性能,采用激光熔凝处理方法对模具钢进行表面强化,利用光学显微镜、扫描电镜及附带的能谱......
目的:探讨磁敏感加权成像对诊断外伤性脑损伤中的敏感性。方法:对20例外伤性脑损伤患者进行T2*序列及SWI序列扫描。结果:20例患者......
目的:比较不锈钢器械和机用镍钛器械预备根管5.25%次氯酸钠(NaOCl)作冲洗液对根管牙本质微硬度的影响.方法:29个磨牙根随机分为4组......
目的对比研究BISCOVERLV液体抛光剂和Tooth Mousse护牙素对托槽周围牙釉质脱矿后促进其再矿化的效果。方法将60颗离体牙粘接托槽后......
研究了300M超高强度钢内螺纹的冷挤压成形以及工件预制底孔直径,冷却润滑液等因素对其内螺纹挤压成形的影响,对挤压螺纹轴截面上的显微硬......
采用10 kW高功率连续CO2横流激光器在Cr12MoV模具钢表面单道熔覆Ni60AA合金粉末,研究不同激光工艺参数对熔覆层组织和硬度的影响,......
分析并试验研究了氮对渗硼层深度、显微硬度、相结构的影响。结果表明,当氮的加入量为质量分数2%时,氮的渗入对后续渗硼过程有阻碍作......
采用金相法、X射线衍射法、电子探针能谱分析和显微硬度法,研究了渗剂粒度和稀土元素对H13钢低温盐浴渗铬速度和渗铬层质量的影响.......
为了研发新型高强高导引线框架 CuCrSnZn系合金,研究了不同的形变热处理工艺以及稀土元素 Ce、Y对Cu-Cr-Sn-Zn合金的显微硬度和导电......
COMPARISON OF SURFACE PROPERTIES OF Ti-6Al-4V COATED WITH TITANIUM NITRIDE, TiN+TiC+Ti(C,N)/DLC, TiN
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目的通过等离子合金化高熵合金涂层,提高铸铁表面耐磨性。方法采用等离子合金化法,以等摩尔比的Al,Co,Cr,Cu,Mn,Ni单质金属粉在HT2......