Case Hardened Steel
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Evaluation of mortars produced with Baosteel slag short flow (BSSF) steel slag as fine aggregate
Abstract The objective was to evaluate the influence of Baosteel slag short flow (BSSF) steel slag, a byproduct of a Brazilian steel mill, as a fine aggregate on the properties of fresh state and on the compressive strength of mortars. The experimental work was to characterize the BSSF steel slag and to produce simple mortars (only cement) and mixed mortars
Cerâmica. Publicado em: 2021-03
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2. Escolha das Energias de Soldagem para Aplicação na Técnica da Dupla Camada na Soldagem do Aço ASTM 131 Grau AH 36
Resumo Durante o processo de soldagem o aço microligado ASTM A131 Grau AH36 pode apresentar defeitos oriundos dos ciclos térmicos (distorções) que demandarão procedimentos onerosos como o tratamento térmico pós-soldagem. Somando-se a isto, este aço não é indicado a sofrer normalização, normalização seguida por revenimento, ou por têmpera e rev
Soldag. insp.. Publicado em: 09/05/2019
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3. Morphology of the DIN 100Cr6 Case Hardened Steel after Plasma Nitrocarburizing Process
Nitrocarburizing is considered one of the most important thermochemical treatments for surface modification of metallic materials and involves the simultaneous diffusion of nitrogen and carbon onto the surface. Understanding and controlling the formation of the nitrocarburized layer have considerable industrial interest due to the improvements regarding wear
Mat. Res.. Publicado em: 04/04/2019
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4. Surface Integrity Analisys in the Hard Turning of Cemented Steel AISI 4317
This work was based on the surface integrity analysis of hardened steel, AISI 4317 case carburized, quenched and tempered with 58 HRC, obtained by a turning operation executed with CBN (cubic boron nitride) tool, varying three basic cutting parameters (cutting speed, feed rate and cutting depth). The surface integrity characterization was conducted analyzing
Mat. Res.. Publicado em: 26/07/2018
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5. Analysis by design of experiments of distortion potentials in drawn and induction hardened wire
In this investigation a DoE (Design of Experiments) analysis of distortion for a typical manufacturing process of pre-straightened, cold drawn and induction hardened AISI 1045 cylindrical steel bars was carried out. A careful characterization of the material, including residual stress states and geometrical changes, was done for the different manufacturing s
Materials Research. Publicado em: 24/02/2012
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6. Análise da tensão residual e integridade superficial no processo de torneamento em material endurecido do aço ABNT 8620 cementado. / Residual stresses and surface integrity analysis after hard turning process of case hardened steel ABNT 8620.
Este trabalho tem a intenção de contribuir com informações sobre a integridade superficial resultante do processo de torneamento em material endurecido de componentes mecânicos fabricados em aço cementado ABNT 8620 (DIN 21 NiCrMo 2). A análise das tensões residuais do corpo de prova foi experimentalmente conduzida pelo Método do Furo Cego Incrementa
Publicado em: 2009
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7. Laser surface remelting and hardening of an automotive shaft sing a high-power fiber laser
An automotive shaft was surface-remelted and hardened using a 2 kW fiber laser and an adapted linear axis whose rotating axis produced helical tracks at 120 RPM. The process variable was the laser power, ranging from 300 to 1100 W, which produced two regions in the material: a martensitic region (MR) and a partially transformed region (PTR). The MR is formed
Materials Research. Publicado em: 2007-12
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8. Fresamento do aço vhsuper nos estados recozido e temperado com metal duro e cermet
The concept of costs reduction in all the industrial processes has been continually developed aiming to make companies more competitive. In the dies and moulds production chain this concern is not different. Usually, dies and moulds require long machining and polishing times, which represent from 60 to 80% of the production cost. This work aims to investigat
Publicado em: 2007