Process structure properties relationship during formation of CrN and AlN layers on H13 Steel

Rojo, A.; Oseguera, J.; Salas, O.; Acosta, Juan

doi:10.1016/j.surfcoat.2008.08.045

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…Shih-Hsien CHANG, 1) Tzu-Piao TANG 1) and Kuo-Tsung HUANG 2) in order to enhance the erosion rate and weight loss. After removing the aluminum, specimens were cleaned with NaOH to remove any oxide or other residue.…”

Section: Improvement Of Aluminum Erosion Behavior and Corrosion Resismentioning

confidence: 99%

“…Past studies mostly aimed at enhancing the surface performance of the H13 steel, and thus, focused on the development of single coatings and/or thermo-chemical treatments to protect the die surface. 1,2) During hot work steel processes, the die surface is rapidly heated and then quenched, thus resulting in a decrease of surface hardness and toughness. 3,4) However, thermal gradients lead to dimensional variations, and generate stress and deformation.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of Aluminum Erosion Behavior and Corrosion Resistance of AISI H13 Tool Steel by Oxidation Treatment

Chang

Tang

Huang³

2010

ISIJ Int.

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In this work, H13 tool steel was prepared with different oxidation treatments to investigate the effects of oxidation temperature and soaking time. In order to improve erosion and corrosion resistance, this study tested with oxidation temperatures of 560°C, 580°C, and 600°C, and oxidation soaking times of 1 h, 2 h, and 3 h, respectively. Experimental results showed that the oxidation treatment at 600°C and for 3 h is the optimum process. The average thickness of the oxide layer was 9.2 mm. It showed that the oxide layer (Fe 3 O 4 ) can protect and improve the aluminum erosion of H13 steel. The specimens that underwent the oxidative procedure were proven to effectively reduce the ratio of Al-Fe-Si compounds during erosion tests of A380 alloy solution. In addition, the results showed that the oxide layer can enhance polarization resistance, and quickly generate a passivation layer to increase the ability of corrosion resistance.KEY WORDS: H13 tool steel; erosion; corrosion; oxidation; A380 alloy. 569© 2010 ISIJ in order to enhance the erosion rate and weight loss. After removing the aluminum, specimens were cleaned with NaOH to remove any oxide or other residue. The weight loss percentage of erosion test is calculated as follows:Weight loss (%)ϭ(IWϪAW)/IWϫ100 IW is the initial weight, and AW is the weight after erosion test.Corrosion potential analysis adopted three electrodes method. Reference electrode was saturated with silver-silver chloride electrode, auxiliary electrode was a Platinum electrode, and working electrode was connected to the testing specimens. The contact area of specimen was 2.01 cm 2 . Meanwhile, the corrosive solvent used 3.5 wt% NaCl, and was kept at room temperature. The main parameters of corrosion testing included: scanning speed of 0.5 mV s Ϫ1, initial potential of Ϫ1.5 V, and the final potential of 0.5 V. The polarization curve was obtained by Corr-View software for analysis, and compared with different oxidation parameters of the corrosion potential (E corr ) and corrosion current (I corr ). Finally, the polarization resistances (R p ) of different oxidation treatments for AISI H13 tool steel were compared. To evaluate the improvement in erosion and corrosion resistance of AISI H13 tool steel via different oxidation processes, erosion and corrosion tests, XRD and EDS, and microstructure inspections were performed. Figure 3 shows the XRD patterns of H13 tool steel after 560°C 1 h, 2 h, and 3 h of oxidation treatment. As seen, the strongest peak is the original a-Fe structure, in addition, there are two other different crystal structures, Obviously, at the same temperature and different soaking times of oxidation treatment, XRD analysis indicated that two different kinds of oxide layers were provided after oxidation treatments, which are the crystal structures of Fe 3 O 4 and Fe 2 O 3 . The intensity of the original a-Fe gradually decreased as the soaking time of oxidation increased, indicating that increasing the soaking time of oxidation would reduce the proportion of the a-Fe structur...

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Section: Improvement Of Aluminum Erosion Behavior and Corrosion Resismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improvement of Aluminum Erosion Behavior and Corrosion Resistance of AISI H13 Tool Steel by Oxidation Treatment

Chang

Tang

Huang³

2010

ISIJ Int.

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“…[1][2][3][4][5][6] It is of great importance to analyse its behaviour theoretically because the experimental process optimisation frequently is very expensive.…”

Section: Introductionmentioning

confidence: 99%

“…Applied across many industries, the reactive sputtering process draws very significant practical interest. [1][2][3][4][5][6] It is of great importance to analyse its behaviour theoretically because the experimental process optimisation frequently is very expensive.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic model of reactive sputtering process

Faddeeva

Oseguera

2012

Surface Engineering

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A new approach in describing the reactive sputtering process is developed by applying a mass balance and the first and second laws of thermodynamics. The developed model involves macroparameters versus microparameters involved in the widely accepted model of Berg et al. The hysteresis loop produced during the PVD process is explained using this new approach. The numerical simulations of the Ti reactive sputtering process in the presence of N 2 and the Al reactive sputtering process in the presence of O 2 in an Ar atmosphere are performed, and the results are compared to the experimental data reported in the literature.

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Improving electrochemical properties of AISI 1045 steels by duplex surface treatment of plasma nitriding and aluminizing

Haftlang

Habibolahzadeh

Sohi

2015

Applied Surface Science

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Process structure properties relationship during formation of CrN and AlN layers on H13 Steel

Cited by 6 publications

References 12 publications

Improvement of Aluminum Erosion Behavior and Corrosion Resistance of AISI H13 Tool Steel by Oxidation Treatment

Improvement of Aluminum Erosion Behavior and Corrosion Resistance of AISI H13 Tool Steel by Oxidation Treatment

Thermodynamic model of reactive sputtering process

Improving electrochemical properties of AISI 1045 steels by duplex surface treatment of plasma nitriding and aluminizing

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