Aisi M3 2 High Speed
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Heat Treatment of Sintered Valve Seat Inserts
The characterization of sintered valve seat inserts (VSIs) after being subjected to different heat treatment operations has been carried out. The VSIs were obtained from three different alloys by mixing iron powder with AISI M3:2, AISI M2 high-speed steels, and AISI D2 tool steel. After sintering, the VSI were quenched in air followed by double tempering at
Mat. Res.. Publicado em: 02/08/2018
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2. HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement
The replacement of electrolytic hard chrome (EHC) by high velocity oxy-fuel (HVOF) sprayed coatings is investigated due to the toxicity of EHC process. The wear behavior of AISI 4140 steel coated by HVOF-, EHC-process was compared to quenched and tempered (Q&T) steel using a pin-on-disc apparatus. The wear tests were conducted at room temperature, 10 N appli
Mat. Res.. Publicado em: 28/05/2018
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3. Laser beam welding tempered 300M ultrahigh mechanical strength steel
AISI 300M ultrahigh strength steel has been used in a number of high demanding applications, such as the VLS Brazilian rocket project. This work intends to propose laser beam welding, with subsequent tempering, as a possible route for the fabrication of engineering pieces of this steel. A 2 kW fiber laser was used to produce welded coupons for metallographic
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-03
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4. Influência dos tratamentos térmicos e tratamentos criogênicos na tenacidade do aço rápido AISI M2. / Influence of the heat treatments and cryogenic treatments on the toughness of the AISI M2 high speed steel.
In this work the toughness of the AISI M2 high speed steel heat treated by conventional and cryogenic routes has been evaluated. The toughness was evaluated through un-notched impact samples and 3 points bending cylindrical samples. The heat treatments were carried out in a vacuum furnace using nitrogen quenching with 6 bar of pressure. The conventional rout
Publicado em: 2008
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5. COMPARATIVE STUDY OF AISI M3:2 HIGH SPEED STEEL PRODUCED THROUGH DIFFERENT TECHNIQUES OF MANUFACTURING / "Estudo comparativo de aços rápidos AISI M3:2 produzidos por diferentes processos de fabricação"
Neste trabalho aços rápidos ao molibdênio AISI M3:2 obtidos por diferentes processos de fabricação, submetidos ao mesmo procedimento de tratamento térmico, foram avaliados no que concerne às propriedades mecânicas de resistência à ruptura transversal e dureza. Os materiais em questão constaram dos aços rápidos comerciais Sinter 23 obtido por met
Publicado em: 2006