Metallography



Metallography

According to growing needs of the country for metal testing laboratories and in order to provide (offer) scientific services, research and consultancy in the field of metallic materials selection, methods of production, physical and mechanical properties selection, optimization and reverse engineering of parts and components, Metallography laboratory with over 30 years of experience and skilled experts is ready to provide services to industries of the country. In Razi Metallurgical Research Center, Structural analysis of images obtained from different prepared surfaces of parts is achieved. These components include nonferrous and ferrous metals with various applications such as automotive, aerospace components, medical industry, ceramic parts and welded components. Structural analysis software can help engineers to predict the strength, toughness, hardness, high temperature corrosion resistance, abrasion resistance etc. Structural Analysis of components can help engineers and experts to avoid failure and early corrosion in industries, particularly when the dimensions of the part makes it impossible for sampling preparation and performing mechanical tests. Failure surface analysis can also help experts to identify methods for preventing corrosion or failure. RMRC's metallurgy experts and technicians have the ability to perform metallographic studies on various materials (metal and non-metal, non-ferrous and ferrous). These studies are conducted by optical microscopy in different magnifications, Image analysis software and stereo microscopy. Image analysis software is able to calculate the percentage of phases, grain size, coating thickness measurement, size and distribution of graphite in cast iron, steel cleanliness measurement and determination of impurities. Through structural analysis, determination of manufacturing process and determination of heat treatment cycle applied to parts is possible for the purpose of reverse engineering. In addition, to perform metallographic tests, hardness test is a research method for determining the resistance of metals. Hardness number can be easily converted to tensile strength through standard tables. Sample preparation for hardness test is simple, therefore this test can be considered as a fast method of determining mechanical properties of materials. In addition, the hardness number can be used in order to determine the macrostructure and microstructure of parts. This method of testing can be done without destroying the sample. Due to the variety of hardness tests, scales and applied forces for a broad range of metals and non-metals can be used. Hardness test is also is a reference method to determine the accuracy of heat treatment performed on parts. Hardness test can be done at various scales depending on alloy hardness, dimensional features, mechanical and physical properties. Hardness test is also a reference method for determining the depth of hardened layer in steels or cast irons.

  Available services in metallographic laboratory:
- Metallography test research.
- Macrographic examination.
- Coating thickness measurement.
- Grain size measurement.
- Decarburization depth measurement.
- Measuring the depth of hardened layer.
- Phase percentage determination.
- Calculation of sphericity, nodule count, Phase percentage determination in cast iron.
- Dendrite arm spacing measurement.
- The degree of bonding determination.
- Metallography of welds.
- Surface quality determination using a stereo microscope.
- Determination of manufacturing process.
- Determination of heat treatment cycle.
- Determination of the welding process.
- Determining the types of welding electrodes.
- Hardness of metals determination by using destructive testing methods.
- Hardness of metals determination by using nondestructive testing methods.
- Weld hardness profile.
- Micro hardness test (MHV).
- Coating hardness measurement.
- Measuring the depth of hardened layer (carburizing, Nitriding, Carbonitriding, Burizing).
- Determination of metallurgical phase.
- Portable hardness.
- Determining the percentage and ferrite No.
- Replica preparation.
- Structure analysis in site.
- Structural analysis using non-destructive method.
- Coating thickness measurement using nondestructive

Metallography

Metallography

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Metallography

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Metallography

Metallography

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Metallography

Metallography

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