A comparative study of salt-bath nitrocarburizing and gas nitriding followed by post-oxidation used as surface treatments of H13 hot forging dies

Perez, Marcos; Belzunce, F. J.

doi:10.1016/j.surfcoat.2016.08.003

Cited by 30 publications

(9 citation statements)

References 32 publications

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“…The wear loss for the gas nitrided specimen2 was found to be as 0.9 grams and the volume wear loss was found to be as 1.4 mm 3 . The wear loss for the gas nitrided specimen3 was found to be as 0.4 grams and the volume wear loss was found to be as 1.23 mm 3 . Among all specimens gas nitrided sample 3 exhibits minimum wear loss.…”

Section: Wear Behaviormentioning

confidence: 90%

“…The wear loss for the untreated specimen was found to be as 0.5 grams and the volume wear loss was found to be as 6.25 mm 3 . The wear loss for the salt bath specimen1 was found to be as 0.27 grams and the volume wear loss was found to be as 3.375 mm 3 . The wear loss for the salt bath specimen2 was found to be as 0.23 grams and the volume wear loss was found to be as 2.87 mm 3 .…”

Section: Wear Behaviormentioning

confidence: 91%

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Dry Sliding Wear Behavior of AISI310 Stainless Steel with Low Temperature Salt Bath Nitriding and Gas Nitriding Processes

Naveen,

Bhandhavi,

Sree

et al. 2019

IJEAT

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AISI 310 is an austenitic stainless steel that accomplished in high thermal applications like turbines, boiler parts etc. In this study AISI310 was treated with salt bath nit- -riding for 60min, 120min and 150min and gas nitriding for 6hrs, 12hrs and 18hrs at the temperature of 5700 c respectively. Comparison study of nitrided specimens were performed under various metallographic tests like scanning electron microscope, X-ray Diffraction, pin on disc apparatus. Experimental results shown that when salt bath nitrided sample at 150min showed a white layer called “S-phase” layer which was detected. In gas nitriding also “S-phase” layer, an expanded austenite was observed, after 18 hrs, CrN phase was discovered after the decomposition of s-phase layer gas nitrided sample of 18hrs which showed the best corrosion resistance .Salt bath specimen 150 min showed minimum wear loss and gas nitrided sample of 18hrs showed more hardness, minimum wear and improved corrosion resistance compared to untreated sample.

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Section: Wear Behaviormentioning

confidence: 90%

Section: Wear Behaviormentioning

confidence: 91%

Dry Sliding Wear Behavior of AISI310 Stainless Steel with Low Temperature Salt Bath Nitriding and Gas Nitriding Processes

Naveen,

Bhandhavi,

Sree

et al. 2019

IJEAT

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“…These particles act as solid lubricant, hence reducing the friction coefficient. Steelsteel friction coefficient is reported in the literature in the range of 0.6-0.7 [29]. Considering a friction coefficient of 0.6, the wear life (defined as the sliding distance required for complete removing of the coating) is measured as 450 m, for the sample coated at 350 °C, 1000 m, for the sample coated at 350 °C and annealed at 500 °C, and 850 m, for the sample coated at 500 °C.…”

Section: Mechanical Properties Of Tisicn Coatingsmentioning

confidence: 99%

The effects of phase transformation on the structure and mechanical properties of TiSiCN nanocomposite coatings deposited by PECVD method

Abedi

Abdollah-zadeh

Bestetti

et al. 2018

Applied Surface Science

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In the present study, the effects of phase transformations on the structure and mechanical properties of TiSiCN coatings were investigated. TiSiCN nanocomposite coatings were deposited on AISI H13 hot-work tool steel by a pulsed direct current plasma-enhanced chemical vapor deposition process at 350 or 500 °C, using TiCl4 and SiCl4 as the precursors of Ti and Si, respectively, in a CH4/N2/H2/Ar plasma as the source of carbon and nitrogen and reducing environment. Some samples deposited at 350 °C were subsequently annealed at 500 °C under Ar atmosphere. Super hard self-lubricant TiSiCN coatings, having nanocomposite structure consisting of TiCN nanocrystals and amorphous carbon particles embedded in an amorphous SiCNx matrix, formed through spinodal decomposition in the specimens deposited or annealed at 500 °C. In addition, it was revealed that either uncomplete or relatively coarse phase

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“…In previous contributions, several authors have analysed the effect of nitrocarburizing on the fatigue limit of the plain material [26][27][28][29][30][31], while only few contributions [10,24] have been devoted to investigating the effect of nitrocarburizing on the medium-high cycle fatigue regime, considering both plain and notched specimens. Moreover, the effects of the combination of salt bath nitrocarburization and post-oxidation, i.e., QPQ treatment, have been mainly analysed from the point of view of microstructure, hardness, wear and corrosion resistance [14][15][16][17][18]32], while the effects of QPQ treatment on the fatigue behaviour have been investigated in detail only for some steel categories, such as carbon steels [33][34][35], alloyed steels [36,37], tool steel [38]; and also for ductile cast iron [39].…”

Section: Introductionmentioning

confidence: 99%

Effect of Salt Bath Nitrocarburizing and Post-Oxidation on Static and Fatigue Behaviours of a Construction Steel

Campagnolo

Dabalà

Meneghetti

2019

Metals

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Several surface modification technologies are typically applied to improve the mechanical properties of the material surface of structural components subjected to severe conditions of load, wear and chemical erosion of the surface. The nitrocarburizing and post-oxidation heat treatment, also known as quench-polish-quench (QPQ), improves the fatigue, wear and corrosion resistance properties of the material, since it increases the surface hardness and generates surface compressive residual stresses. In the present contribution, the effects of the salt bath nitrocarburizing and post-oxidation heat treatment on the static and fatigue behaviours of 39NiCrMo3 construction steel have been investigated by experimentally testing plain as well as notched specimens. For comparison purposes, 39NiCrMo3 construction steel, both untreated and treated, and X5CrNiCuNb 16-4 stainless steel have been tested. First, the microstructure of the untreated and treated steel has been identified by metallographic analysis; micro-hardness measurements have been collected and residual stresses profiles have been obtained by using the X-ray diffraction technique. Then, experimental static and fatigue tests have been performed. Finally, the fracture surfaces have been analysed to locate fatigue crack nucleation sites.

show abstract

A comparative study of salt-bath nitrocarburizing and gas nitriding followed by post-oxidation used as surface treatments of H13 hot forging dies

Cited by 30 publications

References 32 publications

Dry Sliding Wear Behavior of AISI310 Stainless Steel with Low Temperature Salt Bath Nitriding and Gas Nitriding Processes

Dry Sliding Wear Behavior of AISI310 Stainless Steel with Low Temperature Salt Bath Nitriding and Gas Nitriding Processes

The effects of phase transformation on the structure and mechanical properties of TiSiCN nanocomposite coatings deposited by PECVD method

Effect of Salt Bath Nitrocarburizing and Post-Oxidation on Static and Fatigue Behaviours of a Construction Steel

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