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。
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 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。
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 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。
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。
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