2013
DOI: 10.1016/j.surfcoat.2012.05.111
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Modification of S phase on austenitic stainless steel using fine particle shot peening

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Cited by 12 publications
(3 citation statements)
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“…In this sense, a large number of different models, such as Chaplygin gas (Kamenshchik et al 2001), vector dark energy (Beltrán Jiménez & Maroto 2008;Carlesi et al 2012), κ-essence (Armendariz-Picon et al 2000) and quintessence (Wetterich 1995;Caldwell et al 1998;Copeland et al 1998;Zlatev et al 1999) have been proposed to overcome the perceived theoretical shortcomings of the standard cosmology. In particular, quintessence (or scalar field) models are viable and likely candidates for dynamical dark energy (see Tsujikawa 2013), as they can reproduce current observational data without being plagued by the fine-tuning problem of ΛCDM, since their expansion history -at least for a set of different potentials -is almost insensitive to the particular choice of the field's initial conditions. An interesting subset of quintessence theories is represented by coupled models, where it is assumed that the scalar field has a non-negligible interaction to the dark matter sector (Amendola 2000) and is thus expected to leave a strong imprint on structure formation.…”
Section: Introductionmentioning
confidence: 99%
“…In this sense, a large number of different models, such as Chaplygin gas (Kamenshchik et al 2001), vector dark energy (Beltrán Jiménez & Maroto 2008;Carlesi et al 2012), κ-essence (Armendariz-Picon et al 2000) and quintessence (Wetterich 1995;Caldwell et al 1998;Copeland et al 1998;Zlatev et al 1999) have been proposed to overcome the perceived theoretical shortcomings of the standard cosmology. In particular, quintessence (or scalar field) models are viable and likely candidates for dynamical dark energy (see Tsujikawa 2013), as they can reproduce current observational data without being plagued by the fine-tuning problem of ΛCDM, since their expansion history -at least for a set of different potentials -is almost insensitive to the particular choice of the field's initial conditions. An interesting subset of quintessence theories is represented by coupled models, where it is assumed that the scalar field has a non-negligible interaction to the dark matter sector (Amendola 2000) and is thus expected to leave a strong imprint on structure formation.…”
Section: Introductionmentioning
confidence: 99%
“…A avaliação de camadas híbridas em aços inoxidáveis austeníticos se faz presente na literatura. Tsujikawa et al apresentam em seu trabalho o estudo da camada híbrida de cementação a plasma e shot peening por partículas finas nos aços 304 e 316 (TSUJIKAWA et al, 2013). No trabalho de Menezes et al, ocorre o estudo do shot peening antes da cementação e nitretação a plasma em aços 316L (MENEZES et al, 2017).…”
Section: Justificativaunclassified
“…A temperatura utilizada em nitretação a plasma de aços inoxidáveis austeníticos está entre 375°C e 450°C (RANAWARE et al, 2016). O processo de nitretação a plasma em baixas temperaturas aumenta a dureza da superfície, sem promover deterioração da resistência à corrosão nesses aços (MENEZES et al, 2017;TSUJIKAWA et al, 2013). Devido ao baixo coeficiente de difusão do nitrogênio na fase austenita nessas temperaturas, longas durações de tratamento, entre 8 e 40 horas, são utilizadas para atingir a espessura da camada nitretada desejada.…”
Section: Nitretação a Plasmaunclassified