Indentation methods of hardness testing comprise two principal groups.
压痕法测定硬度包括两大类。
This paper presents a micro-hardness testing method, namely depth-hardness testing with nanometer scale.
阐述了一种纳米尺度下测试材料显微硬度的试验方法——深度硬度试验法。
The purpose is to present a common theory and method of shaft frame hardness testing and data processing.
旨在提供井架强度测试及其数据处理的一般理论和方法。
The surface layers are characterized by means of optical microscope, TEM, SEM and micro-hardness testing machine.
用光镜、扫描电镜、透射电镜和硬度计等手段分析并研究其表层变形层金相组织、晶粒尺寸及显微硬度。
The hardness testing shows that hardness of uniform zone is tending to be uniformity and the average hardness is continuous to increase.
锻坯硬度分布测试表明随着近等温锻造变形量的增大，均匀变形区域的硬度变化基本趋于均匀一致，且硬度平均值也在不断增高；
Scientific research institutions, enterprises and research and quality inspection departments to detect the ideal hardness testing equipment.
是科研机构、企业及质检部门进行研究和检测的理想的硬度测试仪器。
Indira Strong tensile testing, hardness testing and alloy identification equipment, in the industry to improve the most complete internal laboratory.
英斯特朗拉力测试，硬度测试及合金识别设备，在行业内完善了最完整的内部实验室之一。
This tester is a popular type Rockwell hardness testing machine, the construction is firm and reliable and safe, operating convenience etc. characteristics.
型洛氏硬度计具有性能稳定，结构牢靠、安全，操作方便等特点。
The surface layers are characterized by means of the optical microscope, X ray diffraction, transmission electronic microscope, and micro hardness testing machine.
用X射线衍射、光镜和透射电镜对表层变形层金相组织、晶粒尺寸、显微硬度进行分析。
The fracture mode and cause were analyzed and determined by fracture surface observation, metallurgical structure examination, chemical analysis and hardness testing.
通过断口宏微观观察、金相组织检查、化学成分及硬度检测等手段确定了叶片断裂性质和原因。
They are the principle of Vickers hardness, image acquisition, image processing of the image of indentation, and the implementation of Vickers hardness testing system.
本文主要从四个方面对维氏硬度测量系统进行了研究和介绍：维氏硬度计原理、图像采集、压痕图像处理和系统实现。
The reason of arc crack on retarder gear surface was analyzed by means of chemical composition analysis, hardness testing, macrostructure and microstructure examination.
通过化学成分分析、硬度试验、宏观和微观检验等方法，对减速机齿轮齿面弧形裂纹的产生原因进行了分析。
Abstract: Through hardness testing, metallographic microscope analysis, and other means, the origination of crack failure of the aluminum alloy die casting die was analyzed.
摘要：通过硬度测试、金相组织观察，研究分析了铝合金压铸模具发生早期龟裂失效的原因。
The Rockwell hardness tester is a precision measurement instrument in material and part hardness testing, which is often used in detection of materials, product and half-finished product.
洛氏硬度计是检测材料和零件硬度较精密的计量仪器，用来测量材料或者成品半成品的相应硬度，其性能指标主要体现在检测精度和操控性两个方面。
A good procedure to follow is to heat-quench a number of small specimens of the steel at various temperatures and observe the result, either by hardness testing or by microscopic examination.
要遵循的合适步骤是将这种钢的一些小试件加热到不同的温度后淬火，再通过硬度试验或显微镜检查观测结果。
A good procedure to follow is to heat-quench a number of small specimens of the steel at various temperatures and observe the results, either by hardness testing or by microscopic examination.
遵循的一个较好的步骤为：将该钢的许多小试样分别在各种不同的温度下进行加热淬火并观察其试验结果，进行硬度试验或者金相检验。
ABSTRACT: Cracks on the disc spring parts and raw materials, using metallographic examination, chemical analysis, hardness testing, scanning electron microscopy by means of a comprehensive analysis.
摘要：对碟形弹簧裂纹件和原材料，采用金相检验、化学分析、硬度试验、扫描电镜等手段进行综合分析。
The evaluation of measuring uncertainty in metallic material Brinell hardness test is studied by testing the hardness of the 45 quenched and tempered steel.
以45#调质钢硬度试验为例，研究了金属材料布氏硬度试验中测量不确定度的评定。
The flexural strength and hardness of the specimens were tested with an instron testing machine and a microhardness tester.
分别以应力分析仪和显微硬度仪测试两组试件的挠曲强度和硬度值。
Improve the testing equipment, magnetic detection machines and hardness.
检验设备完善，有磁粉探伤机和硬度计。
Testing signal is very sensitive to the lift off effect in the hardness nondestructive testing of rail surface by electromagnetic method, so lift off effect must be restrained.
电磁无损检测钢轨踏面硬度中，检测信号对提离效应极其敏感，所以必须对提离效应加以抑制。
Instrumented indentation test is a new kind of testing method. It can determine not only the hardness but also the materials parameters of metallic materials.
仪器化压痕法是一种新兴的试验方法，不仅可以测量金属材料的硬度，还可以测定金属材料的其他参数。
The mechanical properties and weldabilities of X80 pipeline steel were investigated by testing hardness, tensile strength and impact toughness in this paper.
从焊接性和焊接接头使用性能两个方面入手，结合焊接接头的硬度、拉伸和冲击韧度的测试，对X80管线钢的焊接性能进行了试验分析。
Electromagnetic testing and ultrasonic testing are the main points for materials hardness, hardness depth, crystallite size, limiting intensity etc.
对材料硬度、硬化层深度、晶粒大小、极限强度等主要采用电磁检测和超声检测。
By analyzing the characteristic of the ultrasonic hardness sensor, a nondestructive testing method that using the ultrasonic hardness sensor technology for pipe coat is put forword.
通过分析超声波硬度传感器的特点，提出采用超声波硬度传感器技术实现对管件镀层硬度进行现场无损测量的方法。
Testing apparatuses include two polishing machines, one F20 spectrograph, one Rockwell hardness tester, and one metallomicroscope.
抛光机两台，F20光谱仪，洛氏硬度计，金相显微镜各一台。
At the same time, equipped with perfect hardness, gold equivalent testing equipment.
同时配备完善的硬度、金相等检测仪器。
The principle and method for testing and selecting metals by composition and hardness with microcomputer are described. The method is simple and accurate.
本文介绍一种利用微机进行材质检测、分选的原理和方法，较传统方法方便、简单、准确。
The principle and method for testing and selecting metals by composition and hardness with microcomputer are described. The method is simple and accurate.
本文介绍一种利用微机进行材质检测、分选的原理和方法，较传统方法方便、简单、准确。
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