Metallurgical Testing Gallery Microstructure Analysis & Lab Images

Microstructure

  • A microscopic view of fractured and irregularly shaped particles, likely mineral or metal debris, with a scale bar indicating 0.10 mm for size reference.

    10kt Gold Sheet Material, 200X

  • Microscopic image of fragmented material with cracks and lines, labeled with scale bar of 0.10 mm

    Cobalt Alloy

  • Close-up of a micrometer measuring a metal object, showing measurement markings.

    Galvanized Coating

  • micrograph of inconel 718 steel sample showing grain boundaries

    Cast Inconel 718, 100X

  • Metallograph of inconel nickel alloy grain structure. Scale bar indicating 0.10 mm.

    Cast Inconel 718, 100X

  • Microscopic cross section of Haynes 188 alloy showing grain boundaries

    Haynes 188

  • Micrograph of flake graphite as polished showing structure

    Interdendritic Flake Graphite (as polished)

  • Microscopic view of a material with numerous small, irregular dark spots and cracks on a light background.

    Aluminum with Si Precipitates

  • Black and white microscopic image of ductile cast iron showing ferrite pearlite grain structure

    Ductile Cast Iron Ferrite-Pearlite

  • A microscopic view of a ferrite at prior austenite grain boundaries steel metal

    Ferrite at Prior Austenite Grain Boundary

  • metallograph image showing grain structure of 304L stainless steel, microstructure

    304L Stainless Steel, 200X

  • Microstructure of Nickel based superalloy MAR-M-247

    MAR-M-247 Superalloy

  • Micrograph of 304 Low Strength Steel with nonuniform grain structure

    304LSS with Nonuniform Grain Structure

  • Micrograph of Ti 6Al-4V Alpha-Beta alloy Grade 5, Ti-6-4; UNS R56400; ASTM Grade 5 titanium; Ti6Al4V, Ti64, biomaterials, biomedical implants, biocompatibility

    Titanium 6Al-4V Alpha-Beta Alloy

  • Micrograph showing the grain structure of 1144 resulfurized carbon steel a medium-carbon steel that has been resulfurized to improve its machinability. It is known for its high strength and durability, surpassing many other steel alloys. This steel h

    1144 Resulfurized Carbon Steel

  • Micrograph of c932 932 c93200 bearing bronze showing grain boundaries. C932 bearing bronze is hard, strong, resistant to wear, resistant to impacts, and easily machined.

    C93200 Bearing Bronze, (Etched) 100X

  • Inconel® 625 is a specialty alloy with a high strength, outstanding corrosion resistance, heat resistance, and fatigue strength. The most impressive aspect of this material is that its service temperatures range from cryogenic to 1800 F (982 C). Inco

    625 Inconel, (Etched) 500X

  • Micrograph showing grain structure of AISI 1045, a medium carbon steel designed to be able to function in areas requiring greater strength and hardness. This steel possesses excellent size accuracy, concentricity, straightness.

    1045 Carbon Steel, (Etched) 500X

  • Microscopic image showing grain structure of gray cast iron material.

    Gray Cast Iron, (Etched) 500X

  • Photomicrograph of Nickel Braze Alloy, 100x

    Nickel Braze Alloy, 100x

Fractures

  • Fracture Initiation, failure analysis, backscatter image

    Fracture Initiation 50x

  • crack in a metal part, bainite and martensite, we determined that the crack existed prior to heat treating, failure analysis

    Forming Crack Before Heat Treatment

  • scanning electron microscope image of fractured welded wire, failure analysis aerospace

    Interdendritic Fracture, 500X

  • metal failure, microscopic image with scanning electron microscope, fracture surface

    Fatigue in Aluminum, 4000X

  • scanning electron microscope image of fracture features

    Fracture Features, SEM 50X

  • metallurical failure analysis manufacturing, image SEM

    Fatigue Striations, Shaft Fracture, BEI 1500X

  • failure surface failure analysis, production downtime, expedited testing

    Ductile Overload, SEM 1000X

Joining Methods

  • microscopic image of two metal parts joined with a weld, showing grain structure

    Laser Weld Joining Two Different Metals

  • cross section of an electron beam weld showing grain structure

    Electron Beam Weld, 12.5X

  • microscopic image of two austentitic stainless steel sheet metal parts joined by fillet weld

    Fillet Weld in Austenitic Stainless Steel Sheet, 12.5X

  • Laser beam weld showing grain structure and void for quality control process verifcation

    Laser Beam Weld, 100X

Corrosion

  • pulp and paper hot water pipe defect failure analysis, microbiologically influenced corrosion, Bio-fouling

    Microbiologically Influenced Corrosion (MIC) with Stress Corrosion Cracking (SCC)in Hot Water Pipe, 100X

  • Bronze corrosion failure analysis color metallography

    Corrosion of Bronze, 500X

  • Pitting corrosion failure analysis, caustic working environment

    Pitting Corrosion, 50X

  • SCC stress corrosion cracking hot water pipe stainless steel

    Stress Corrosion Cracking (SCC) in Hot Water Pipe, 100X

  • Backscatter Electron Imagery of Filiform Corrosion, threadlike filaments of corrosion that appear under some coatings found in industrial metallurgical failure analysis

    Filiform Corrosion, BEI 100X

Defects

  • "Alpha case" in the context of titanium and EDM (Electrical Discharge Machining) refers to a brittle, oxygen-enriched layer that forms on the surface of titanium alloys when exposed to heat, particularly during manufacturing processes like EDM.

    Alpha Case on Titanium

  • "Alpha case" in the context of titanium and EDM (Electrical Discharge Machining) refers to a brittle, oxygen-enriched layer that forms on the surface of titanium alloys when exposed to heat, particularly during manufacturing processes like EDM.

    Alpha Case on Titanium

  • phases of metal, manufacturing failure analysis

    Carburization in Nickel, 500X

  • EDM Electrical Discharge Machining Recast layer machining

    EDM Recast Layer on A286 Fe Superalloy

  • Electrical Discharge Machining EDM Recast layer defect machining

    EDM Recast Layer on Titanium, 500X

  • laser weld interdendritic cracking defect

    Laser Weld Interdendritic Cracking, 200X

  • Recast Layer, EDM electrical discharge machining secondary phase embrittlement

    Recast Layer

  • EDM Recast layer crack

    EDM Recast Layer with Cracks into Base

  • IGO failure analysis case hardened steel low alloy

    Intergranular Oxidation in Case Hardened Layer of 8620 LA Steel

  • braze failure quality control LME failure analysis

    Liquid Metal Embrittlement in Tube

  • Microscope image showing voids in cast aluminum due to shrinkage.

    Shrinkage in Cast 356 Al

  • Microscopic image of a thermal coupling cross-section displaying heat affected area degradation due to improper brazing technique.

    Thermocouple Brazed to Sheet Material Showing Signs of Erosion, (Etched) 100X

  • Micrograph showing Intergranular Oxidation in a paper mill boiler tube at 500x magnicfication

    Intergranular Oxidation in Boiler Tube, 500x

  • Micrograph showing dark patches on the microstructure of the boiler tube

    Graphitization in Boiler Tube, 500x

  • Photomicrograph of Alpha Case in Cast Titanium, 100x

    Alpha Case in Cast Titanium, 100x

  • Photomicrograph of Alpha Case inCast Titanium, 100x

    Alpha Case in Cast Titanium, 100x

  • Scanning Electron Microscope image of incipient melting on steel, showing cracking at 1000x

    Incipient Melting on Steel, 1000x (SEM)

Scanning Electron Microscopy (SEM)

  • zinc phosphate crystals plating SEM image

    Zinc Phosphate Crystals, SEM 1500X

  • dendritic 3D printed metal, advanced manufacturing process verification

    Dendritic Structure of 3D Printed 316L Stainless Steel, SEM 10,000X

  • powder alloy microscopic spheres of metal, scanning electron microscope, advanced manufacturing process verification

    Alloy in Powdered Form, SEM 1000X

  • BEI SEM Backscatter electron image showing graph of elemental composition metal coating FE NI MO

    Linescan Image of Coated Surface, 500X