Effect of boronizing temperature and time on microstructure and abrasion wear resistance of Cr12Mn2V2 high chromium cast iron

Li, Chunmin; Bao-luo, Shen; Li, Guijiang; Yang, Chao

doi:10.1016/j.surfcoat.2008.06.170

Cited by 59 publications

(31 citation statements)

References 18 publications

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“…36,38) The hardness of the cross section of the homogenised and boronised steel was 275 HV and 2 160 HV, respectively. The hardness of the boride layer was approximately 8 times higher in comparison to that of the matrix of the homogenised steel.…”

Section: Microstructural Resultsmentioning

confidence: 99%

Corrosion and Wear Behaviour of Boronized high Carbon and Chromium Cast Steel

et al. 2013

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The purpose of this study was to examine the effect of boronising heat treatment on the corrosion behaviour (in two different corrosive media) and wear properties (on two different counter sliding discs) of the DIN 1.4777 quality cast steel containing 1.7% C, 30% Cr and 1.1% Si. The steel supplied as cast was exposed to homogenisation heat treatment at 1 150°C for 3,5 hours and then to boronising heat treatment at 900°C for 8 hours using the powder of Ekabor 2. An optical light microscope, SEM and XRD analyses were used to conduct microstructural characterisation of the steel investigated. Electrochemical potentiodynamic polarisation measurements were taken to evaluate corrosion behaviours of the examined steels. Wear tests were conducted in a pin-on-disc type wear device by using a load between 10 N and 60 N. While the corrosion resistance of the boronising heat treated steel deteriorated by the pitting damage mechanism within corrosive media, uniform corrosion damage enhanced the corrosion resistance of the examined boronised steel. Oxidative adhesion, cracking of oxide and/or boride layer, and severe plastic deformation mechanisms were dominant during the wear tests. Severe plastic deformation and cracking of the oxide and/or boride layer caused wear mechanism to transform from mild to severe.KEY WORDS: corrosive media; DIN1.4777 quality steel; boronising heat treatment; wear; counter sliding disc.

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Section: Microstructural Resultsmentioning

confidence: 99%

Corrosion and Wear Behaviour of Boronized high Carbon and Chromium Cast Steel

et al. 2013

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“…For the AISI D6 steel it was observed that the surface-roughness values increased with the boriding treatment. C. Li 21 and S. Sahin 22 solid borided different steels and reported that surface-roughness values increased with an increase in the boriding temperature. On the other hand, the friction coefficients of the unborided and borided AISI D6 steel varied from 0.39 to 0.62, as can be seen in Table 1.…”

Section: Characterization Of Boride Coatingsmentioning

confidence: 99%

“…This is in agreement with the reports of previous studies. [17][18][19][20][21][22] Comparing the wear rate of the borided steel with the unborided steel, the wear rate of the borided steels is approximately four times lower. The wear rate of the unborided sample was 81.2 × 10 -6 mm 3 /Nm; however, this value dropped to 1.28 × 10 -6 mm 3 /Nm (1323 K -8 h) as a result of the boriding process.…”

Section: Characterization Of Boride Coatingsmentioning

confidence: 99%

Investigation of wear behavior of borided AISI D6 steel

Güneş¹,

Kanat²

2016

Mater. Tehnol.

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We have investigated the effect of the boriding process on the wear behavior of AISI D6 steel. The boride layer was characterized by light microscopy, X-ray diffraction and micro-Vickers hardness testing. The X-ray diffraction analysis of the boride layers on the surface of the steels revealed the existence of the FeB, Fe2B, CrB and Cr2B compounds. Depending on the chemical composition of the substrates, the boride-layer thickness on the surface of the AISI D6 steel was found to be 164.42 μm. The hardness of the boride compounds formed on the surface of the steels ranged from 1672 HV0.05 to 2118 HV0.05, whereas the Vickers hardness value of the untreated steels was 584 HV0.05. The wear tests were carried out using a ball-disc arrangement under dry-friction conditions at room temperature with an applied load of 10 N and a sliding speed of 0.3 m/s for a sliding distance of 1000 m. It was observed that the wear rate of the borided and unborided AISI D6 steel ranged from 1.28 × 10 -6 to 81.2 × 10 -6 mm 3 /Nm. Keywords: AISI D6, boriding, micro-hardness, friction coefficient, wear rate V {tudiji je bil preiskovan vpliv postopka boriranja na obrabo jekla AISI D6. Borirana plast je bila pregledana s svetlobno mikroskopijo, z rentgensko difrakcijo in izmerjena je bila mikrotrdota po Vickersu. Rentgenska difrakcijska analiza borirane plasti je pokazala prisotnost spojin FeB, Fe2B, CrB in Cr2B. Odvisno od kemijske sestave podlage je bila debelina borirane plasti na jeklu AISI D6 164,42 μm. Trdota boridov, nastalih na povr{ini jekla, je bila med 1672 HV0,05 do 2118 HV0,05, pri~emer je bila trdota neobdelanega jekla po Vickersu 584 HV0,05. Preizkusi obrabe so bili izvedeni na sestavu kroglica-plo{~a, pri pogojih suhega trenja pri sobni temperaturi, z uporabljeno obremenitvijo 10 N, s hitrostjo drsenja 0,3 m/s in potjo drsenja 1000 m. Ugotovljeno je, da je hitrost obrabe boriranega in neboriranega jekla AISI D6 v obmo~ju od 1,28 × 10 -6 do 81,2 × 10 -6 mm 3 /Nm.

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“…This is in agreement with reports of previous studies. 9,[23][24][25] When the wear rate of the borided steel is compared with the non-borided steel, the wear rate of the borided steels is approximately five times lower than that of the non-borided steels. The SEM micrographs of the worn surfaces of the non-borided and borided AISI H10 steel are illustrated in Figures 8 and 9.…”

Section: Friction and Wear Behaviormentioning

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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Effect of boronizing temperature and time on microstructure and abrasion wear resistance of Cr12Mn2V2 high chromium cast iron

Cited by 59 publications

References 18 publications

Corrosion and Wear Behaviour of Boronized high Carbon and Chromium Cast Steel

Corrosion and Wear Behaviour of Boronized high Carbon and Chromium Cast Steel

Investigation of wear behavior of borided AISI D6 steel

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

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