
金相试样
Measurement equipment :CMM, Gear measuring machine , Contourgraph , Roughness tester, Metallographic Specimen meter, carbon sulfur analyzer, Zeiss microscopes, measuring projector more than 30sets.
检测设备:三坐标测量机、齿轮测量仪、 轮廓仪, 粗糙度、金相试样仪, 碳硫分析仪, 蔡氏显微镜, 视频投影仪等30多台套。
A brief introduction to the preparation of metallographic specimen of NdFeB ingot or strip casting are given in this article.
文章介绍了钕铁硼铸块或速凝薄带的金相样品的制备方法。
Besides, it was also pointed out that poor polishing of the metallographic specimen might also cause the false image of so-called C-type graphite and lead to a wrong conclusion.
此外还指出金相试样抛光不良也可能导致所谓“块状石墨”的假象而引起误判。
Preparation technique on metallographic specimen of friction stir welds of dissimilar materials;
搅拌摩擦焊中,材料的流动状态对焊件性能有很大影响。
The metallographic structure of specimen under different conditions was stu***d.
还对不同条件下制备的试样进行了金相组织分析。
Results of metallographic observations on the specimen surface after various stress cycles show that for all the alloys used, the change of slip marks exhibits two distinctly different stages.
在疲劳载荷经过不同循环数后,试样表面进行金相观测的结果指出,对于所用的合金而言,滑移痕迹的变化都表现出两个明显不同的阶段。
This value is provided by welding conditions of simulated specimen with following metallographic control at development of new products welding.
这个值是所提供的焊接条件模拟标本与下列金相控制在开发新产品的焊接。
In order to find the reasons of cracking, we have selected specimen from different positions for metallographic examination, chemical composition analysis and hardness testing.
对失效稳定杆进行了金相检验、化学成分分析和硬度测试。
Introduce the preparation for metallographic specimen of thermo-spraying process coat and explain some technical questions.
对热喷涂层金相试样制备进行了介绍,并对一些技术问题给予提示。
Model Q-2 and Q-2A Metallographic Specimen Cutter, which cuts off specimens by high-speed Cut off wheel, is widely used in various metallographic laboratories.
2型和Q-2A型金相试样切割机是利用高速旋转的薄片砂轮片截取金相试样,它广泛地适用于金相实验室切割各种金属材料。
The structure of spheroidal carbide in wear resistant white iron was investigated by SEM observation and EPMA of ion etched metallographic specimen.
用离子蚀刻加扫描电镜观察和微区成分分析的方法研究了耐磨白口铁中球形碳化物的结构。
金属试样(metallographic specimen)是材料科学与工程领域中用于微观结构分析的标准化样品,通常指经过特定制备工艺处理的金属或合金材料。其核心作用在于通过显微组织观察揭示材料内部晶体结构、相组成及缺陷特征。
组成与制备要求
金属试样需满足ASTM E3标准规定的制备规范,包括切割、镶嵌、研磨、抛光和化学蚀刻五个关键步骤。其中电解抛光技术可有效消除机械损伤层,提升显微组织清晰度(来源:《材料表征技术原理》)。
分析技术体系
工业应用场景
在航空发动机叶片失效分析中,金属试样的析出相分布检测可准确判定热处理工艺缺陷。汽车板件腐蚀研究中,试样界面结构分析能追溯电镀工艺异常(来源:NIST材料数据库)。
metallographic specimen 是由“metallographic”(金相的)和“specimen”(样本)组成的术语,具体解释如下:
Metallographic(金相的)
形容词,源自名词“metallography”(金相学),指通过显微镜研究金属或合金微观结构的学科。例如,定量金相法(quantitative metallography)可用于分析钢中铁素体的应变。
Specimen(样本)
名词,指用于检验、观察或实验的样品或标本。在工程领域,常指经过特定处理的材料样本,如岩石标本、金属试样等。
metallographic specimen 指用于金相分析的金属或合金样本,需经过研磨、抛光等制备步骤,以便在显微镜下观察其显微组织(如晶粒、相分布等)。
该术语专指经过制备、用于金相学研究的金属样本,是材料科学与工程中评估材料性能的关键对象。
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