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- Keywords Macro vickers hardness;Micro vickers hardness;Dispersion; 宏观维氏硬度;显微维氏硬度;分散度;
- Macro vickers hardness 宏观维氏硬度
- The Vickers hardness number is indicated by HV ( formerly, DPH ). 维氏硬度用HV表示（之间写作DPH）。
- HV-1000 Micro Vickers Hardness Tester adopts LCD screen to display. 覆层，钢，有色金属和微小及薄形零件等。
- And the measured uncertainty in Vickers hardness testing was evaluated according to procedure without bias method and procedure with bias method. 利用无偏差估计方法和考虑硬度计偏差的方法对维氏硬度试验中的测量不确定度进行了评定。
- The phase compositions are studied by X-ray diffraction technologies and the hardness are examined by the Vickers hardness tester at a load of 200g. 其中,组织结构分析采用光学显微镜和X射线衍射仪相结合的方式,取各组试样的抛光截面,测量涂层的厚度,观察涂层的致密度和组织,并用显微硬度仪测定其显微硬度;
- Through Vickers hardness test, scoring test and indentation test, the coating thickness and theadhesion of coating with matrix were analyzed. 采用维氏硬度试验，划痕和压坑试验分析了涂层厚度和涂层与基体的结合力。
- The Vickers hardness of the materials increased after 1st pass during ECAP process and the increasing trend become slower in the following passes. 1道次ECAP变形后材料的硬度明显增大，随后每道次硬度的增大趋势明显变缓。
- The vickers hardness and nitriding surface fulfill requirements,and also improves the machining quality of the products. 主轴锥孔的维氏硬度和氮层深度均达到要求,提高了产品的加工质量。
- Vickers hardness tester HVS-5A1/HVS-5D1 are using precision machinery and light, electricity, computer software, the combination of a new type of hardness testing equipment. HVS-5A1/HVS-5D1维氏硬度计是采用精密机械和光、电、计算机软件相结合的新型硬度测试仪。
- Effects of electron beam surface remelting and solidification on the microstructure and hardness of Crl2MoV steel are studied by means of an optical microscope and a Vickers hardness tester. 本文采用电子束对Cr12MoV模具钢进行表面熔凝处理,并利用光学显微镜及显微硬度计等研究了材料在电子束表面熔凝处理后的显微组织及硬度变化规律。
- Series HV / HVS Vickers Hardness Tester, that is composed of precision mechanism, optical system and electric technology, is used to measure Vickers hardness of either metallic materials or non-metallic materials. HVS系列维氏硬度计是由精密机械，光学系统和先进技术萃合而成的材料硬度测定仪器，用于测定黑色金属、硬度合金、有色金属、表面渗氮层、氮化或非金属材料的维氏硬度，可用于各行各业的金属材料、大专院校等。
- The experimental methods included visual observation, Vickers' hardness test, micro-scoping, composition analysis, scanning electro-microscopy analysis and fractured surface observation. 分别进行外观观察、硬度测量、微观观察、成分分析及破断面分析。
- The corresponding relation between Vickers hardness and Leeb hardness is investigated in this paper,and the method of least square estimation is used to regress the equation between them. 研究了维氏硬度和里氏硬度的对应关系,在大量试验的基础上,采用最小二乘法拟合了维氏硬度和里氏硬度的关系式,并对原换算表的低值部分进行了扩展。
- The measurement error of indentation in Brinell and Vickers Hardness testing exerts a great influ-ence on Brinell and Vickers Hardness value. To minimize the measurement error, this article proposed a correct measurement method. 布氏和维氏硬度压痕的测量误差对布氏和维氏硬度值影响很大;为了减少压痕的测量误差本文提出了正确的测量方法供硬度试验人员参考.
- The effects of scandium on the recrystallization of aluminium-lithium alloy are investigated by measuring the vickers hardness of the testing alloys and by observing their microstructures. 通过硬度测量和微观金相观察,研究了钪对铝锂合金再结晶过程的影响。
- The laboratories are equipped with universal metal material testing machine, the analysis system of the mechanical performance of metal materials, optical Brinell, Rockwell, Vickers hardness tester. 本实验室配备有万能材料试验机、材料力学特性计算机分析系统、光学布氏、洛氏、维氏硬度计。
- By means of the analysis and calculation of uncertainty for the Vickers hardness test of metallic materials,the paper introduced an uncertainty evaluation method for the Vickers hardness test. 通过对金属维氏硬度试验的不确定度的分析与计算,介绍一种维氏硬度试验不确定度的评定方法。
- In this paper,investigations of the pulse discharge for PEOMCVD of hard coatings are carried out. The vickers hardness, thickness, structure and components of the coatings are analysed. 研究了用直流脉冲等离子体进行PEOMCVD(等离子体增强金属有机化合物化学气相沉积)淀积含钛多组元化合物硬质膜的新工艺。对试样进行了显微硬度、涂层厚度、表面结构及膜的元素成份分析。
