effects of nitriding temperature and time on h13 steel of


Effect of liquid oxy-nitriding at various temperatures

Effect of liquid oxy-nitriding at various temperatures

Jan 01, 2021 · In this study, liquid oxy-nitriding (LON) at different temperatures (430 °C, 450 °C, 470 °C) was employed on the AISI H13 steel. Effects of LON on wear and molten aluminum corrosion of AISI H13 steel were investigated.sp.info CN105369189A - Nitriding process for H13 die steel The nitriding process for the H13 die steel comprises the following steps of quenching and tempering the H13 die steel, and then performing hardness screening; cleaning and polishing the surface of the H13 die steel; putting the H13 die steel in a vacuum type gas nitriding furnace, vacuumizing, then introducing nitrogen to recover pressure, and keeping positive pressure; sp.info Nitriding Process Optimization of Nano Sized H13 Steelwas obtained as follows:The tempering temperature before nitriding was 560ºC, nitriding temperature was 550ºC, nitriding time was 9h and rate of ammonia decomposition was 50%. Compared with untreated H13, the nitride layer of the optimization processsp.info (PDF) THE EFFECT OF NITRIDING ON THE The present paper reports influence of gas nitriding process on the mechanical and wear properties of H13 steel which was coated TiAlZrN thin


			
Effect of process variables on gas nitriding of H13

Effect of process variables on gas nitriding of H13

Arif et al. [5] investigated the effect of nitriding time, nitriding temperature, and nitriding potential on the nitrogen concentration and hardness depth profile by using finite element code. In sp.info The effect of plasma nitriding treatment time on the Oct 15, 2019 · The specific wear rate decreased in proportion to the nitriding treatment time. The wear resistance of the nitrided samples improved by two orders of magnitude compared to that of the untreated samples. This result is appropriate because the specific wear of the nitrided AISI H13 tool steel is from 10 −6 to 10 −7 mm 3 /N·m . However, when the sliding distance sp.info Influence of the nitriding time in the wear behaviour The influence of nitriding time in the wear behaviour of an AISI H13 hot work steel used on forging dies has been studied. AISI H13 steel was nitrided by sp.info (PDF) Influence of multiple nitriding on the case The experimental results reveal that multiple-nitriding treatment on H13 steel has a significant effect on compound layer thickness and its phases, diffusion zone depth and its microstructure


			
CHARACTERIZATION OF PLASMA NITRIDED AISI H13

CHARACTERIZATION OF PLASMA NITRIDED AISI H13

H13 tool steel specimens were plasma nitrided at 773 and 823 K for 36 and 72 ks. All samples were characterized by optical microscope, GIXD at the incident angle of 1 and 5 degree, XRD, EDS, EPMA and Vicker’s microhardness testing. The results suggest that nitriding time and temperature affect on layer depth.sp.info An Introduction to Nitriding - ASM InternationalThe solubility limit of nitrogen in iron is temperature dependent, and at 450 °C (840 °F) the iron-base alloy will absorb up to 5.7 to 6.1% of N. Beyond this, the surface phase formation on alloy steels tends to be pre-sp.info The Effect of Heat Treatment Atmosphere on Hardening nitriding [5]. Nitriding of steel should be conducted at temperature around 500˚C to give the highest diffusion rate of nitrogen in steel [6]. Normally, the nitrated layer should not be thicker than 0.3 mm because it increases its brittleness and lowers the thermal fatigue resistance [7]. Many researches have been conducted related to thesp.info Effect of nitrided-layer microstructure control on wear Feb 15, 2018 · In this study, the gas nitriding of AISI H13 hot work die steel was carried out in flowing NH


			
Combat molten aluminum corrosion of AISI H13 steel by low

Combat molten aluminum corrosion of AISI H13 steel by low

Mar 05, 2019 · Recent works has shown that low-temperature nitriding contributes to enhanced pitting resistance [ 29] and low processing temperature minimizes part dimension distortion [ 30 ]. Therefore, low-temperatures (703/723 K/743 K) liquid nitrocarburizing has applied to AISI H13 die steel in this study.sp.info (PDF) GAS NITRIDING OF A HOT WORK TOOL STEEL AND ITS The effect of pulsed plasma nitriding temperature and time on the pitting corrosion behaviour of AISI H13 tool steel in 0.9% NaCl solutions was investigated by Basso et al. and they reported that (i) the pitting potential was found to be dependent on the composition, microstructure and morphology of the surface layers, (ii) the best corrosion protection was observed for samples sp.info Short Communication Effect of Low Temperature Plasma the corrosion resistance of nitrided layer using a low temperature plasma nitriding (LTPN), which is a process that enhances the hardness and corrosion performance of H13 steel by forming the nitrides of Cr, V and Mo. Due to its characteristics of environmental friendliness and economical application, thesp.info Effect of QPQ treatment on the performance for H13 die steelsurface hardness value of 1441 HV0.3 was obtained after nitriding at 565 ℃ for 150 min, which is as three times hi gh as that of untreated sample. Meanwhile the wear r esistance of H13 steel is


			
Effect of Oxidation on Surface Properties of AISI H13

Effect of Oxidation on Surface Properties of AISI H13

Atmospheric-pressure plasma nitriding of AISI H13 tool steel is performed using a dielectric barrier dis-charge method. As the surface of the sample nitrided by atmospheric-pressure plasma is oxidized, the surface characteristics are considered to be different from those of conventional plasma nitriding in a vacuum.sp.info Influence of multiple nitriding on the case hardening of May 24, 2011 · Controlled gas nitriding represents one of the most important factors in enhancing the service life of AISI H13 steel dies used for the hot extrusion of aluminum alloys. Such surface-hardening treatment is used repeatedly to re-harden the die surface, which has been exposed to high temperature and abrasion by extruding the aluminum alloy, resulting in sp.info Plasma Nitriding Behavior of DIN 1.2344 Hot Work Tool AISI H13 tool steel vary when one parameter changes (i.e. temperature or time), depending on the thickness of the nitrided layer and the hardness [18, 19]. However, in all of these papers, there is no comparison between the effects of parameters on the plasma nitriding behavior. The aim of this work is to study and comparesp.info Effects of Post-oxidizing Treatment on Melting Loss and AISI H13 tool steel was chosen as the substrate material to achieve a homogeneous heat treatment (quenched at 1030°C and tempered at 580°C, and repeated 3 times to reach a hardness of HRC 47–48), all specimens were sub-jected to gas nitriding (570°C, 1 h), and then various oxida-tion treatments (oxidation temperatures:560°C, 580°C and


			
What steel materials can be Nitriding? wihometals

What steel materials can be Nitriding? wihometals

Molybdenum, in particular, not only acts as a nitride forming element, but also reduces the brittleness at the nitriding temperature. Generally speaking, if the steel contains one or more nitride-forming elements, the nitriding effect is better, in which 0.85 — 1.5% aluminum is the best nitriding result, a certain amount of chromium content sp.info Microstructure and corrosion behaviour of pulsed plasma Sep 01, 2010 · The effect of pulsed plasma nitriding temperature and time on the pitting corrosion sp.info A Hybrid Plasma Treatment of H13 Tool Steel by Combining Sep 28, 2018 · Pulsed plasma nitriding and post-oxidizing process have been applied to hot work H13 tool steel to enhance the tribological properties (friction coefficient and wear rate). Nitriding was accomplished under specific conditions to generate a free white layer surface in order to avoid an abrasive wear mechanism. Post-oxidizing treatment was carried out in the sp.info The Effect of Heat Treatment Atmosphere on Hardening of The influence of carbon content of the quenched material on the response of the tempering and the performance of the nitriding is also studied. Samples of the H13 steel with specific sizes would be subjected to heat treatment process with different duration time and under different atmospheric conditions.


			
Effect of QPQ Nitriding Parameters on Properties of

Effect of QPQ Nitriding Parameters on Properties of

Nov 13, 2019 · The effects of nitriding temperature and time on properties of pearlite ductile cast iron were studied by wear and corrosion resistance tests. The results show that the main phases of oxide layer are Fe3O4 and Li2Fe3O4, and the main phases of compound layer are Fe3N and Fe4N. With the increase of nitriding temperature, the micro-hardness and wear sp.info (PDF) Microstructure and corrosion behaviour of pulsed SEM micrographs of cross-sections of AISI H13 tool steel samples after plasma nitriding for 4 h at 360 °C (A), 440 °C (B), 480 °C (C), and 520 °C (D). results are consistent with the precipitation of e-Fe2-3N and c0 -Fe4N phases, thus producing the compact compound layer iden- sp.info Hardness, Adhesion, and Wear Performance of Duplex Jan 04, 2021 · The surface treatment, which includes first a thermal diffusion process, such as nitriding and then a physical vapor deposition coating process as the working layer, is called duplex treatment in the literature. In this study, the effects of the duplex treatment on the hardness, adhesion, and wear performance of TiAlZrN coatings on the hardened AISI H13 sp.info Effect of Process Parameters on Gas Nitriding of Grey Cast

  • Abstract THE EFFECT OF DOUBLE SHOT PEENING AND