microhard相关论文
By means of induction melting technology,Ti-6Al-4V alloy staging casting was made with the same rotation velocity and ce......
Dual titanium boride layers consisting of continuous TiB2 top-layer and TiB whisker sublayer were formed on the surface ......
In Situ Synthesis of Titanium Nickel Intermetallic Compounds Layer and TiN Coating By Laser Cladding
Laser cladding,together with laser nitriding was used to synthesize a titanium nickel intermetallic compound layer on th......
Effect of Ceramsite Structure on Microstructure of Interfacial Zone and Durability of Combined Aggre
Structure characteristics of three kinds of ceramsite with different water absorption and the influence on microstructur......
Crystallization behavior of electroless Co-Ni-B alloy plated in magnetic field in presence of cerium
The electrochemical property, chemical composition and crystal structure of electroless Co-Ni-B-Ce alloy plated in gener......
Microstructure and mechanical properties of SiCp /AA5083 composite fabricated by friction stir welding (FSW) were invest......
Electrochemical Behavior of Passive Films Formed on the Surface of Coarse-,Fine-and Ultra-fine-Grain
Electrochemical impedance spectroscopy(EIS) and Mott-Schottky analysis were carried out to evaluate the electrochemical ......
为了研究激光焊接对5mm厚异种材料45#钢与40Cr钢焊接的接头组织性能影响,利用6kW高功率激光器在不同参数下进行拼焊试验,采用佳能7......
采用回火硬度法研究了两种不同V，N含量的抗震钢筋回火等温过程组织及显微硬度变化规律，根据JMA（Johnson Mehl-Avrarni）理论定量计算了V......
采用真空实型铸造工艺制备一种铸渗SiC颗粒和Cr粉的铁基复合材料.在光学显微镜下观察了复合层的显微组织,并且测量了复合层的显微......
镍基复合涂层是一项有望替代电镀铬涂层的先进绿色环保表面处理技术。本文在铝合金表面制备了纯Ni、NiP及其与SiC复合涂层,利用SEM......
使用冷金属过渡（CMT）焊接技术对6005A铝合金进行焊接,获得成形良好的焊接接头.应用光学显微镜、显微硬度仪、扫描电子显微镜和能谱分......
Ｔｉ７０Ｎｉ２０Ｓｉ１０非晶合金在５００－８００℃范围内经１ｈ退火后，可形成平均晶粒度为８－１２０ｎｍ的纳米合金，Ｘ射线衍射（ＸＲＤ）和透射电镜（ＴＥＭ）的结果表明，不同平均晶粒度的纳米合金样品中，相的组成......
在Instron材料试验机上对纯铁粉和添加了不同润滑剂的铁粉致密化过程进行了研究；用扫描电镜观察了铁粉的形貌，用X射线衍射方法测试了......
为探讨在无压烧结过程中TiO2纳米陶瓷的致密化与晶粒长大的关系以及纳米陶瓷的结构对其力学性能的影响，采用溶胶一凝胶技术制备的不......
随着超音速火焰喷涂技术的迅速发展,工业上需要耐磨处理的工件的外形复杂性问题越来越突出,喷涂过程中需要多种角度进行喷涂。本文......
利用自行研制的一种新型低温气体多元共渗技术,在灰口铸铁表面进行了气体N、C、O多元共渗.N、C、O多元共渗灰口铸铁表面形成的渗层......
采用传统的铸渗工艺在低碳钢铸件表面形成了高铬铸铁复合层,并考察了渗层的组织和性能.试验结果表明:渗层的显微硬度平均值在700HV......
AC7A铝合金是工业中应用最广泛的铝合金之一.本文以提高AC7A铝合金表面显微硬度及耐磨性为主要目的,基于阳极硬质氧化工艺重点研究......
采用微弧氧化设备,在电压410 V、Na2SiO3浓度80 g/L、电流10 A、氧化时间12 min条件下,在纯Al表面获得了厚度为22μm的陶瓷膜层。......
对TA7钛合金以氩气保护等离子热喷涂金属钼,并进行保温扩散处理得到的涂层界面微观结构用金相显微镜、扫描电镜、电子探针、X射线......
基于梯度功能设计理念,制备了阻尼增强的梯度结构混凝土(GSCDE),同时采用自由振动法、抗压强度试验、显微硬度计、环境扫描电镜等......
利用等离子熔覆法在Q235基体上制备了Al x CoCrFeNi(x=1、1.5,x为摩尔分数)高熵合金,对熔覆层的化学成分、相结构、微观组织和显微......
In the paper, plasma surface metallurgy was performed using Fe-based powder on steel substrate. The microstructure and m......
本文研究了用于高温高压火力发电厂蒸汽管道的10CrMo_(910)钢管经过长期运行后晶格常数和显微硬度的变化情况,并根据钢管铁素体内......
应用循环伏安，恒电位阶跃和Ｘ射线衍射（ＸＲＤ）等方法了Ｎｉ－Ｗ－Ｐ合金电沉积特点和镀层结构与显微硬度，结果表明，在以柠檬酸铵为配体的溶液中，Ｎｉ－Ｗ－Ｐ合金 层较Ｎｉ－Ｗ合......
为了了解镧对脱矿釉质矿化的影响，以基础矿化液及含１０ｐｐｍｌａ＾３＋或氟的矿化液分别处理脱矿后人牙釉质，再作实验开窗区剖面表及里的显微硬度测定，结......
Sports and energy drinks are consumed by more people than ever.Sports and energy drinks may enhance physical resistance,......
A Study of Structure, Thermal and Mechanical Properties of Free Machining Al-Zn-Sn-Bi Alloys Rapidly
The objective of our study is to investigate the effect of rapid solidification technology using melt spun process from ......
采用产型负压铸造法制备出铁基颗粒复合材料，分析了复合层的微观组织，研究了其显微硬度分布，测定了复合层的抗冲蚀性能。研究结果表明......
