Overblasting effects on surface properties of low-carbon steel

Momber, Andreas W.; Wong, Yat Choy

doi:10.1007/bf02733888

Cited by 14 publications

(9 citation statements)

References 10 publications

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“…The coating performance is highly dependent on the surface pretreatment and the application procedures [11,12]. Those must be in accordance with standard documents [13,14], which include procedures for blast cleaning.…”

Section: Case 1: Abrasive Blasting In Steel Surfaces-addressing Contamentioning

confidence: 99%

Identification and Quantification of Phases in Steels by X Ray Diffraction Using Rietveld Refinement

Rocha¹,

Pereira²

2020

Inelastic X-Ray Scattering and X-Ray Powder Diffraction Applications

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X-ray diffraction has been applied in the investigation of phase formation in steels, operating in industrial environments. In this work, identification and quantification of phases by X-ray diffraction and peak fitting, using the Rietveld method, were employed. In a first scenario, two different types of steels, subjected to abrasive surface cleaning, suffered contamination from the blasting operation that compromise between 10 and 36% of the blasted surface, as revealed by the quantitative phase analysis. Such high values of particulates can jeopardize the corrosion protection offered by posterior coating application. In a second scenario, duplex steels (DS) subjected to aggressive environments and high temperatures of service went through phase transformation that formed amounts up to 3.5% of a deleterious phase, known as sigma phase. This phase compromises the steel mechanical resistance and corrosion protection, and its quantification is crucial for the assurance of the material integrity. The quantitative phase analysis (QPA) by X-ray diffraction provided the diagnosis of forthcoming problems related to the presence of such phases in the investigated steels, allowing the optimization of techniques and the choice of correct process parameters.

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Section: Case 1: Abrasive Blasting In Steel Surfaces-addressing Contamentioning

confidence: 99%

Identification and Quantification of Phases in Steels by X Ray Diffraction Using Rietveld Refinement

Rocha¹,

Pereira²

2020

Inelastic X-Ray Scattering and X-Ray Powder Diffraction Applications

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“…Up to date, most of the studies on SMAT have focused on optimization of nanostructured surface layer, 4 characterization of nanocrystalline surface layer, 5,6 investigation of grain refinement mechanism, 7,8 and properties of nanocrystalline surface layer. [9][10][11][12][13] Furthermore, since SMAT can significantly improve the mechanical and tribological properties of materials, recent studies have paid much attention to mechanical properties, such as hardness, tensile strength, friction, and wear properties. [11][12][13] However, there is still insufficient information on corrosion properties of the materials treated by SMAT, which is also an important issue for its practical application.…”

Section: Introductionmentioning

confidence: 99%

“…[9][10][11][12][13] Furthermore, since SMAT can significantly improve the mechanical and tribological properties of materials, recent studies have paid much attention to mechanical properties, such as hardness, tensile strength, friction, and wear properties. [11][12][13] However, there is still insufficient information on corrosion properties of the materials treated by SMAT, which is also an important issue for its practical application. Reports on the effect of SMAT on the corrosion resistance are somewhat conflicting.…”

Section: Introductionmentioning

confidence: 99%

Lower temperature aluminizing and its effect on improving corrosion resistance of iron treated by surface mechanical attrition treatment

Zhong

Jiang

et al. 2010

J Coat Technol Res

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An ultrafine-grained surface layer with the average grain size of about 28 nm in the surface layer was fabricated on a pure Fe plate by the surface mechanical attrition treatment (SMAT). Lower temperature aluminizing treatments of the SMAT samples were investigated by scanning electron microscope and X-ray energy dispersive spectroscope. The electrochemical corrosion behavior of the aluminized SMAT sample was studied in 0.05 mol/L Na 2 SO 4 + 0.05 mol/L H 2 SO 4 solution, in comparison with the original SMAT and the coarse-grained sample. The results showed that SMAT had a negative effect on the corrosion resistance of Fe. An aluminized surface layer was formed on SMAT sample by aluminizing treatment at 400°C, which was much lower than that of the conventional aluminizing treatment. A successive lower temperature aluminizing process made the aluminized layer thicker and continuous. The SMAT sample treated by a successive lower temperature aluminizing had much higher corrosion resistance and exhibited passive behavior, which was due to the formation of a protective passive film.

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“…The effectiveness of such coatings is dependent not only on the properties of the coatings but also on the character of the metal substrate, the surface pretreatment and the application procedures 6,7 . The surface preparation should be in accordance with specifications defined by standards documents 8,9 , which include procedures for blast cleaning.…”

Section: Introductionmentioning

confidence: 99%

Abrasive blasting contamination in Super Duplex and carbon steels - a quantification approach by rietveld analysis

et al. 2014

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Overblasting effects on surface properties of low-carbon steel

Cited by 14 publications

References 10 publications

Identification and Quantification of Phases in Steels by X Ray Diffraction Using Rietveld Refinement

Identification and Quantification of Phases in Steels by X Ray Diffraction Using Rietveld Refinement

Lower temperature aluminizing and its effect on improving corrosion resistance of iron treated by surface mechanical attrition treatment

Abrasive blasting contamination in Super Duplex and carbon steels - a quantification approach by rietveld analysis

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