Introduction to Fatigue #metallurgy #materialsscience #fatigue #materialsscience #metallurgy

Metallurgist #valentineday #happyvalentinesday❤️ #METALLURGIST #metallurgicalengineering #MATERIALSCIENCE #Materialscience #mechanicalengineering #Engineering

Have you ever wondered about the effects of open-air heating on titanium? In our latest post, we explore the formation of the alpha case and its impact on the properties of titanium. Open-air heating of titanium can cause a layer of brittle titanium oxide (called an alpha case) to form on the surface, which can weaken the Titanium and its alloys and make them more susceptible to cracking and fracture. Therefore, it's important to avoid open-air heating of titanium to maintain its overall properties and reliability. To learn more about the correct method to heat Titanium, you can write us at info@horizontitanium.com #KnowYourTitanium #TitaniumRoundBar #Chamfer #TitaniumImplants #OrthopedicsImplants #MedicalImplants #ImplantManufacturer #HorizonTitanium #StrongerTogether

Beautiful microstructure showing precipitates in light weight (high Al content) steel. Credit #BarbaraSetinaBatic #steel #aluminum #precipitates #metallurgy #METALLURGIST #metallography #metallurgicalengineering #materialmeme #materialsengineering #MaterialsScience #physicalmetallurgy #mechanicalengineering #manufacturingengineering #microstructure #materialcharacterisation

🔬𝐏𝐚𝐩𝐞𝐫 𝐑𝐞𝐯𝐢𝐞𝐰 : 𝐋𝐨𝐜𝐚𝐥 𝐜𝐨𝐦𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧 𝐝𝐞𝐭𝐨𝐮𝐫𝐢𝐧𝐠 𝐟𝐨𝐫 𝐝𝐞𝐟𝐞𝐜𝐭-𝐟𝐫𝐞𝐞 𝐜𝐨𝐦𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧𝐚𝐥𝐥𝐲 𝐠𝐫𝐚𝐝𝐞𝐝 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬 𝐢𝐧 𝐚𝐝𝐝𝐢𝐭𝐢𝐯𝐞 𝐦𝐚𝐧𝐮𝐟𝐚𝐜𝐭𝐮𝐫𝐢𝐧𝐠🔬 - Summary : • Innovative Method: Introduction of a new method for manufacturing defect-free compositionally graded materials (CGMs), focusing on local composition adjustments. • Efficiency Gains: This method not only saves time and materials but also eliminates the need for pre-powder mixing, making it highly efficient. • Defect-Free Production: By tailoring compositions in specific regions, defect-free parts with functionally graded materials (FGM) can be achieved. • Experimental Success: Utilization of SS316L and IN718 powders in a Directed Energy Deposition (DED) process, demonstrating smooth transitions and crack-free regions. 🚀 Technology in Action: • InssTek’s Multi-Powder Feeding System: Enabled simultaneous in-situ alloying, crucial for the LCD method. • Schematic Overview: The DED process involved a gradual increase in IN718 volume fraction, achieving g a defect-free gradient over 54 layers. This innovative approach marks a significant step forward in the field of additive manufacturing, opening new avenues for the creation of advanced materials with precise properties and minimal defects. #Material_Research_with_InssTek Reference: 👉 👉 #Material #Research #Alloying #Powder #Metallurgy #Additive #Manufacturing #AM #3Dprinter #DED

Case Hardening of Steels

RT @dierkraabe: Let the robot do the 2D EBSD work for you! @MPISusMat @maxplanckpress #texture #microstructure…

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Making a Damascus blade [📹 Regula_Wood]

🔬𝐈𝐧-𝐒𝐢𝐭𝐮 𝐀𝐥𝐥𝐨𝐲𝐢𝐧𝐠: 𝐓𝐡𝐞 𝐅𝐚𝐬𝐭𝐞𝐬𝐭 𝐖𝐚𝐲 𝐭𝐨 𝐃𝐞𝐯𝐞𝐥𝐨𝐩 𝐍𝐞𝐰 𝐀𝐥𝐥𝐨𝐲𝐬🔬 Explore a cutting-edge method for developing new alloys that is faster, simpler, and requires significantly less material than conventional techniques. This in-situ alloying approach enables researchers to create high-performance alloys in just 40 minutes, making alloy research more time and cost-effective. Key Advantages · High-Performance Alloy Production: Capable of producing various alloy forms, including High Entropy Alloys (HEA), Metal Matrix Composites (MMC), Functionally Graded Materials (FGM), and bi-metallic joints by mixing up to six different materials. · Optimized for Powder Metallurgy Research: Features an accurate and stable powder feeder and easy element change, maximizing flexibility in experimental design. · Fast Alloy Development: Uses minimal material to achieve maximum efficiency, reducing research time significantly. For more information, visit the MX-Lab Product Page. [Related Video] Many research institutes worldwide are already using this technology for diverse studies. Explore Research Case Studies. #InSituAlloying #NewAlloys #PowderMetallurgy #HighEntropyAlloys #MetalMatrixComposites #FunctionallyGradedMaterials #BiMetallicJoint #RapidAlloy #AlloyResearch #HEA #MMC #FGM #AdvancedMaterials

Point Defects Point defects are localized disruptions in the atomic arrangement within a crystal lattice. Here's a detailed look at the primary types of point defects: 1. Vacancies Description: A vacancy occurs when an atom is missing from its lattice site. Impact: They can increase atomic mobility, affecting diffusion rates, and can alter mechanical properties like creep. 2. Interstitials Description: An atom occupies an interstitial site, which is not a normal lattice position. This atom squeezes into the space between lattice atoms. Impact: Interstitial atoms can cause lattice strain, affecting properties like hardness and ductility. They can also increase electrical resistivity. 3. Substitutional Defects Description: An impurity atom substitutes for a host atom in the crystal lattice. Impact: Depending on the size and charge of the substituent atom, this can lead to changes in electrical, optical, or magnetic properties. It's common in doping semiconductors. 4. Frenkel Defect Description: A combination of a vacancy and an interstitial. An atom is displaced from its normal site to an interstitial position. Impact: This type of defect is significant in ionic crystals, where it can contribute to ionic conductivity by allowing ions to move through the lattice. 5. Schottky Defect Description: It involves the formation of an equal number of vacancies in cation and anion sublattices to maintain charge neutrality. Impact: Schottky defects decrease the density of the material and can affect diffusion and ionic conductivity. 6. Impurity Defects Description: Foreign atoms (impurities) are present either at lattice sites or interstitial positions. Impact: Impurities can significantly alter material properties: Doping: Intentional introduction of impurities to modify electrical conductivity in semiconductors. Alloying: Changing mechanical or chemical properties by introducing other elements into the material. Effects on Material Properties: 1. Electrical Properties: Point defects can modify the electronic band structure, leading to changes in conductivity, especially in semiconductors. 2. Optical Properties: Defects can create color centers, influencing absorption, transmission, or luminescence of light. 3. Mechanical Properties: Defects can act as stress concentrators or facilitate dislocation movement, affecting strength, ductility, and toughness. 4. Thermal Properties: Influence thermal conductivity and expansion due to changes in atomic structure or phonon scattering. 5. Chemical Reactivity: Defects can increase the surface energy or provide sites for chemical reactions, influencing corrosion or catalysis. #metallurgy

Fatigue fracture example 📽object_videos #metallurgy

X-Ray Diffraction (XRD) Basic Operation || Characterization With Shanli Episode 2

Conduction, convection, and radiation are the three primary mechanisms of heat transfer: 1. Conduction: Definition: Conduction is the transfer of heat through a material without any movement of the material itself. It occurs in solids where heat moves from one particle to another by direct contact. Example: Touching a hot metal pan with your hand; the heat from the pan transfers to your hand through conduction. 2. Convection: Definition: Convection involves the movement of heat through a fluid (liquid or gas) due to the actual movement of the heated fluid itself. This can happen naturally (natural convection) or through forced means like fans or pumps (forced convection). Example: A radiator heating a room by warming the air around it, which then rises and circulates, or boiling water where heat from the bottom of the pot moves upwards through the water. 3. Radiation: Definition: Radiation is the transfer of heat in the form of electromagnetic waves, which can travel through empty space without the need for a medium. It's the only method of heat transfer that doesn't require matter. Example: The heat from the Sun reaching Earth, or feeling warm when standing near a fireplace due to infrared radiation from the fire. Each method has its unique characteristics and applications: Conduction is key in materials where particles are closely packed, like metals which are good conductors due to the free movement of electrons. Convection dominates in fluids where the movement of the fluid can carry heat away from the source. Radiation is universal, playing a role in everything from the warmth of the sun to the glow of a light bulb. #heat transfer #mechanicalengineering #metallurgy #metallurgyandmaterialengineering

Conduction, convection, and radiation are the three primary mechanisms of heat transfer: 1. Conduction: Definition: Conduction is the transfer of heat through a material without any movement of the material itself. It occurs in solids where heat moves from one particle to another by direct contact. Example: Touching a hot metal pan with your hand; the heat from the pan transfers to your hand through conduction. 2. Convection: Definition: Convection involves the movement of heat through a fluid (liquid or gas) due to the actual movement of the heated fluid itself. This can happen naturally (natural convection) or through forced means like fans or pumps (forced convection). Example: A radiator heating a room by warming the air around it, which then rises and circulates, or boiling water where heat from the bottom of the pot moves upwards through the water. 3. Radiation: Definition: Radiation is the transfer of heat in the form of electromagnetic waves, which can travel through empty space without the need for a medium. It's the only method of heat transfer that doesn't require matter. Example: The heat from the Sun reaching Earth, or feeling warm when standing near a fireplace due to infrared radiation from the fire. Each method has its unique characteristics and applications: Conduction is key in materials where particles are closely packed, like metals which are good conductors due to the free movement of electrons. Convection dominates in fluids where the movement of the fluid can carry heat away from the source. Radiation is universal, playing a role in everything from the warmth of the sun to the glow of a light bulb. #heat transfer #mechanicalengineering #metallurgy #metallurgyandmaterialengineering

Unstoppable wear protection with EnDOtec SafeHard 700! 🔥 Are you looking for durability and efficiency? EnDOtec SafeHard 700 is the breakthrough flux cored wire electrode designed for abrasion and high temperature resistance. 🛒 Order now: 👉 ✅ Chromium and nickel free - safer for health and the environment  ✅ Exceptional hardness - 66 HRC, holding up to 700°C  ✅ Superior weldability - precision in all positions Perfect for mining, construction and recycling, this electrode delivers long-lasting performance while reducing costs and increasing productivity. 📢 Not located in one of the 13 countries served through the shop? Or interested in maintenance and repair services? Contact us here 👉 Exclusive offer: Get 10% off your first order with code RABATT10 and experience the difference! #EnDOtecSafeHard700 #Durability #WearProtection #IndustrialInnovation

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📊 𝐓𝐞𝐬𝐭 𝐑𝐞𝐬𝐮𝐥𝐭 𝐨𝐟 𝐂𝟏𝟎𝟑(𝐍𝐛 𝐀𝐥𝐥𝐨𝐲) 𝐏𝐨𝐰𝐝𝐞𝐫 𝐑𝐞𝐜𝐲𝐜𝐥𝐢𝐧𝐠 𝐟𝐨𝐫 𝐋𝐏-𝐃𝐄𝐃 📊 C103 is attracting attention in various industries such as aerospace and energy for its excellent mechanical properties, but its use was limited due to its high price. InssTek is researching powder recycling to reduce costs and broaden its industrial applications. Powder - The analysis of powder recycling results indicates that powders recovered in an argon environment can be reused in LP-DED process. - However, prior to reuse, a sieving process is deemed essential. LP-DEDed Specimen - 3D printed specimens using recycled powder confirm that powders recovered and recycled in an argon atmosphere exhibit performance comparable to that of virgin powder, meeting ASTM standards and thereby validating their potential for reuse. - Although recycling environment is important, test results show that printing environment is more critical factor affecting mechanical properties. 🔻 For more information 🔻 #C103 #Niobium #Aerospace #AdditiveManufacturing #Metal #3DPrinting #Material #Research #materialresearch #DirectEnergyDeposition #DED

Electro chemical Weld Cleaning: 1. Pickling: Using mild phosphoric acid to remove oxidation and scale. This method is common for stainless steel. 2. Passivation: After pickling, passivation restores the passive layer on stainless steel, enhancing corrosion resistance. 3. Solvent Cleaning: For removing oils, greases, or other organic contaminants. #weldcleaning #weld #metallurgy #mechanicalengineering