One Minute Mentor: The effect of cooling on the porosity of metals
August 7, 2021
Source: ASM International
The heat released at the part surfaces affects porosity in many ways. Surface porosity increases the roughness which slows down the speed of the cooling medium that is removing heat from the part surfaces. The suction effect exerted by the hot gas present inside porosity contracts itself during cooling, which suctions the vapor bubbles originating from the quenching liquid.
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Better catalysts from super-fast heating
Source: ASM International
HighT-Tech, Md., has won The Spinoff Prize 2021 for developing a technique to make alloys that could improve catalysts or be used to build better batteries. The method enables the startup to fine-tune the catalytic activity of the materials and discover new and potentially more efficient catalysts.
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Lindberg/MPH ships electrically heated furnace to the manufacturing industry
Source: ASM International
Lindberg/MPH, Riverside, Mich., has shipped one electrically heated mesh belt conveyor furnace to the manufacturing industry. This furnace is configured for process applications requiring a hydrogen process atmosphere in the heating section muffle.
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Two new car bottom furnace contracts awarded to Can-Eng
Source: ASM International
Can-Eng Furnaces International, Niagara, N.Y., has been awarded a contract to design and manufacture two 50,000 lb/hr. car bottom furnaces for one of the largest metals and mining companies in the world.
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Solar Atmospheres vacuum heat treats longest nickel alloy tubes ever
Source: ASM International
Solar Atmospheres of Western Pennsylvania, Hermitage, Pa., successfully vacuum heat treated the largest and longest load of nickel alloy tubing ever in a commercial vacuum furnace. They were able to preserve the brightness and cleanliness of a 45-foot-long seamless tubing while meeting extremely stringent mechanical properties.
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One Minute Mentor: Effect of porosity on the heat treatment of powder metallurgy steels
July 24, 2021
Source: ASM International
Porosity has the greatest single effect on the response of PM Steels to heat treatment compared with conventional steels. The majority of parts have a porosity between 5 and 15 vol%, far more than is found in a typical casting. Every mechanism in press and sinter is subject to diminishing returns; i.e., compact density has a decreasing dependence on compaction pressure, as does sintering and homogenization.
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EFD Induction introduces new tube welder
Source: ASM International
EFD Induction, Skien, Norway, has introduced Compact Weldac tube welder as an eco-friendly alternative to traditional and more polluting heating methods. It is expected to result in considerable environmental improvements and significantly reduced running costs with raised efficiency, reduced material usage, improved output power, and less cooling water requirements.
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Air Products announces multi-billion dollar net-zero hydrogen energy complex in Canada
Source: ASM International
Air Products, Lehigh, Pa., has announced a multi-billion-dollar plan to build a new net-zero hydrogen energy complex in Edmonton, Canada. The $1.3 billion (CAD) net-zero hydrogen production and liquefaction facility expected onstream in 2024 will accelerate the transition to a cleaner, more sustainable energy future.
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Oerlikon Metco opens new Laser Center of Competence
Source: ASM International
Oerlikon Metco, Wohlen, Switzerland, has built a unique laser center of competence that gives customers access to laser cladding. Laser cladding results in high-quality deposits with a metallurgical bond to the substrate.
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Metlab provides heat treated propellers for hydroplane racing team
Source: ASM International
Metlab, Wyndmoor, Pa., has provided heat-treated propeller blades for a hydroplane racing team located in Cinnaminson, N.J. The treatment was subject to the H-900 condition (900°F/ hours at heat) and was age hardened in a vacuum furnace to ensure that the parts were free of scale.
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