Some mechanical properties of borided AISI H13 and 304 steels

Taktak, Sukru

doi:10.1016/j.matdes.2006.04.017

Cited by 161 publications

(92 citation statements)

References 24 publications

(27 reference statements)

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“…H13 steel is a kind of hot work die steel with high harden ability, good toughness, good heat resistance, thermal stability, antioxidant capacity and thermal fatigue behavior, which is widely used in hot-pressing, hot-extrusion and casting of dies [1,2]. In practical use, there are two main failure forms: one is fracture failure and the other thermal fatigue.…”

Section: Introductionmentioning

confidence: 99%

Effects of Rare Earth on the Microstructure and Impact Toughness of H13 Steel

Gao

Liu

et al. 2015

Metals

106

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Studies of H13 steel suggest that under appropriate conditions, additions of rare-earth metals (REM) can significantly enhance mechanical properties, such as impact toughness. This improvement is apparently due to the formation of finer and more dispersive RE inclusions and grain refinement after REM additions. In this present work, the microstructure evolution and mechanical properties of H13 steel with rare earth additions (0, 0.015, 0.025 and 0.1 wt.%) were investigated. The grain size, inclusions and fracture morphology were systematically studied by means of optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results indicate that REM addition of 0.015 wt.% can result in good improvement of performance compared to the REM additions of 0.025 wt.% and 0.1 wt.%. It is found that the impact toughness is significantly enhanced with the addition of 0.015% REM, which can be improved 90% from 10 J to 19 J. Such an addition of REM can result in a huge volume fraction of finer and more dispersive inclusions which are extremely good to toughness.

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Section: Introductionmentioning

confidence: 99%

Effects of Rare Earth on the Microstructure and Impact Toughness of H13 Steel

Gao

Liu

et al. 2015

Metals

106

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“…This well-known Rockwell-C indentation test is prescribed by the VDI 3198 norm, as a destructive quality test for coated compounds. [17][18][19][20] The principle of this method is presented in the upper-right-hand part of Figure 1. 18 A load of 1471 N was applied to cause coating damage adjacent to the boundary of the indentation.…”

Section: Boriding and Characterizationmentioning

confidence: 99%

Investigation of the adhesion and wear properties of borided AISI H10 steel

Güneş¹,

Özçatal²

2016

Mater. Tehnol.

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In the present study the effect of the boriding process on the adhesion and wear properties of AISI H10 steel has been investigated. The boride layer was characterized by light microscopy, X-ray diffraction and the Vickers microhardness. The X-ray diffraction analyses of the boride layers on the surface of the steels revealed the existence of the compounds FeB, Fe2B, CrB, Cr2B and MoB. Depending on the chemical composition of the steel, the boride-layer thickness on the surface of the AISI H10 steel was found to be 63.72 μm. The hardness of the boride compounds formed on the surface of the steels ranged from 1648 to 1964 HV0.05, whereas the Vickers hardness value of the untreated steel was 306 HV0.05. The wear tests were carried out in a ball-on-disc arrangement under dry-friction conditions at room temperature with an applied load of 10 N and with a sliding speed of 0.3 m s -1 for a sliding distance of 1000 m. It was observed that the wear rate of the borided and non-borided AISI H10 steels ranged from 3.15 mm 3 /N m to 62.84 mm 3 /N m.Keywords: AISI H10, boriding, microhardness, adhesion, wear rate V predstavljeni {tudiji je bil preiskovan vpliv postopka boriranja na adhezijo in obrabne lastnosti jekla AISI H10. Borirana plast je bila karakterizirana s svetlobno mikroskopijo, z rentgensko difrakcijo in z merjenjem mikrotrdote po Vickersu. Analiza z rentgensko difrakcijo borirane plasti na povr{ini jekel je odkrila prisotnost spojin: FeB, Fe2B, CrB, Cr2B in MoB. Odvisno od kemijske sestave jekla je bila debelina borirane plasti na povr{ini jekla AISI H10 okrog 63,72 μm. Trdota borovih spojin, ki so nastale na povr{ini jekel, je bila med 1648 HV0,05 do 1964 HV0,05, medtem ko je bila Vickers trdota neobdelanega jekla 306 HV0,05. Izvr{eni so bili preizkusi obrabe z napravo s kroglico na plo{~i pri pogojih suhega trenja pri sobni temperaturi z uporabljeno obremenitvijo 10 N, s hitrostjo drsenja 0,3 m/s pri dol`ini drsenja 1000 m. Hitrost obrabe boriranega in neboriranega jekla AISI H10 je bila v obmo~ju od 3,15 mm 3 /N m do 62,84 mm 3 /N m.

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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%

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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Some mechanical properties of borided AISI H13 and 304 steels

Cited by 161 publications

References 24 publications

Effects of Rare Earth on the Microstructure and Impact Toughness of H13 Steel

Effects of Rare Earth on the Microstructure and Impact Toughness of H13 Steel

Investigation of the adhesion and wear properties of borided AISI H10 steel

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

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