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Ensayo de impacto de piezas de fundición esferoidal de pequeño espesorImpact tests of thin wall ductile iron
(Universidade Federal do Rio de Janeiro, 2004-12)
En el presente trabajo se estudia del comportamiento de la fundición esferoidal de pequeño espesor, y por lo tanto de elevado conteo nodular, ante solicitaciones de impacto, realizando comparaciones con probetas extraídas ...
Test of Host Sanction Hypothesis in Soybean Plants Co-inoculated with Nitrogen Fixing and Non-fixing Bradyrhizobium japonicum
(ScienceDomain International, 2015-01)
Aims: We tested the proposed mechanism for potential sanctions, that the plant would reduce viability of non-fixing rhizobia inside nodules, performing viable Bradyrhizobium japonicum counts from co-occupied and single-occupied ...
Damaging micromechanisms in an as cast ferritic and a ferritized ductile cast iron
(Elsevier Science, 2017-03-15)
Mechanical behavior and damaging micromechanisms in Ductile Cast Irons (DCIs) are strongly effected by matrix microstructure (e.g., phases volume fraction, grains size and grain distribution) and graphite nodules morphology ...
Urban, traffic- related particles and lung tumors in urethane treated mice
(Faculdade de Medicina / USP, 2011)
OBJECTIVE: The present study was designed to evaluate the effects of urban, traffic-related, fine particulate matter (PM2.5) on mice lung tumorigenesis under controlled exposure conditions. METHODS: Four groups of female ...
Characterisation of PVD-TiN coated austempered ductile iron: Effects of nodule count and austempering temperature
(Iron Steel Inst Japan Keidanren Kaikan, 2011-03-15)
In this work PVD-TiN coatings are deposited on ADI substrates austempered at 280 and 360°C, with nodule counts varying between 490 and 1 100 nod/mm2. The deposition is performed at 300°C by the arc ion plating technique. ...
Influência do número de nódulos de grafita nas propriedades mecânicas do ferro fundido nodular austemperado
(Universidade Federal de Minas GeraisUFMG, 2005-10-06)
In recente years, austempered ductile cast irons (ADI) has emerged as a major engineering material because of its excellent mechanical properties. These properties, as result of a microestructure containing spheroidal ...