Wear resistance of 20Kh13 steel after case hardening

1990 ◽  
Vol 26 (8) ◽  
pp. 436-438
Author(s):  
A. G. Klabukov ◽  
V. A. Savel'ev ◽  
A. I. Fal'kov ◽  
M. I. Myalin
Alloy Digest ◽  
2020 ◽  
Vol 69 (12) ◽  

Abstract Lucefin Group 20NiCrMo2-2 and 20NiCrMoS2-2 are low-carbon, Ni-Cr-Mo, alloy case-hardening steels that are used in the carburized or carbonitrided, and subsequently quench hardened and tempered, condition. These steels are, in general, used for medium-size case-hardened parts requiring high fatigue strength and wear resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, and joining. Filing Code: SA-866. Producer or source: Lucefin S.p.A..


Alloy Digest ◽  
2020 ◽  
Vol 69 (8) ◽  

Abstract Lucefin Group 16MnCr5 and 16MnCrS5 are low-carbon, 1.2Mn-1Cr, alloy case-hardening steels that are used in the carburized or carbonitrided, and subsequently quench hardened and tempered condition. In general, these steels are used for small and medium size parts requiring high wear resistance and fatigue strength. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-864. Producer or Source: Lucefin S.p.A.


2020 ◽  
Vol 184 ◽  
pp. 01018
Author(s):  
A Rohit Sai Krishna ◽  
B Vamshi Krishna ◽  
D Harshith ◽  
T Sashank ◽  
Ram Subbiah

This project investigates on salt bath nitriding process in order to improve the wear behavior of the material. This process increases the hardness of the material. The specimens were nitrided at 580°c on three different timing hours such as 60 minutes, 90 minutes & 120 minutes. A pin on disc machine is used to conduct wear test, so that wear loss can be determined. The specimens are to be magnified by metallographic test like scanning electron microscope. The untreated specimen is used to compare with the nitrided specimen. The best specimen is chosen which determines the life of material & improves the better wear resistance. The hardness of untreated material and nitrided material are compared. The material AISI stainless steel has many unique properties but it lacks wear resistance and hardness because of which it has limited applications. By conducting heat treatment operation, the hardness of the material does not improve, but by conducting case hardening process the hardness of the outer case will be high compared to base metal. If the hardness and wear resistance of the material improves the material can be used in wide range of applications.


2011 ◽  
Vol 509 (24) ◽  
pp. 6800-6805 ◽  
Author(s):  
M. Askari ◽  
H. Khorsand ◽  
S.M. Seyyed Aghamiri

Author(s):  
Mohammad Iqbal Yunus ◽  
Kanwarjeet Singh ◽  
Gaurav Arora ◽  
Ranganath M Singari

Heat treatment and surface processing are critical aspects of design and manufacture of components in a wide range of industrial sectors. Engineering materials, such as steel, are heat treated under controlled heating and cooling to alter their chemical, physical and mechanical properties to meet desired engineering applications. Gears engaged rotating at several thousand RPM. Inner Barrels of Injection Moulding machines, which is subjected to wear when thermoplastics, glass fibres are chosen to be injection moulded, Guide pillar Guide bush which slide over each other needs to be hardened from outside to improve hardness and wear resistance, but ductile from inside to bear fluctuating load, for this types of operation Case Hardening is required, to give desired property. In this detailed and systematic investigation, we have selected AISI H13 tool steel as for our research work specimen and we have made an effort to find out the mechanical properties (EDX, Hardness HV, Pin on Disc wear test) and micro structural properties (SEM, XRD) by comparing the two process one is traditional Case hardening heat treatment process i.e. Gas Nitriding and a new process i.e. Coating of Ni-based alloy powder on H13 Tool steel by Microwave Hybrid Heating (MHH) method in household microwave oven at 900W and 2.45 GHz and further find the best process. Investigation shows that coated Sample has good Wear resistance as compared to unmodified H13 Tool Steel sample and nitrided sample, Vicker’s micro-hardness of nitride sample is found to be 829.5HV, and for coated sample is 788HV, Coated sample has good Microstructure as compared to nitrided sample and is free from porous cracks.


2021 ◽  
Vol 15 (58) ◽  
pp. 179-190
Author(s):  
Fedaoui Kamel ◽  
Amar Talhi ◽  
Mohamed Zine Touhami

This study, concerns the improvement of the hardness and resistance to wear of the Ti-6Al-4V alloy surface by means of thermochemical treatment, for obtaining coatings on the Ti-6Al-4V alloy gives performance of resistance to wear phenomena. Three-thermochemical treatment time (2h, 4h, and 6h) was chosen for investigation of the effect of such treatment on this alloy. The hardness test under an indentation load of 50 gf with a Vickers pyramidal indenter revealed that the surface hardness is 335 Hv for the untreated samples. On the other hand the hardness reaches approximately 1500 Hv during gas cementation at 930 °C for variable times (2h, 4h, 6h) followed by quenching at 840 °C in an oil medium, which was accompanied by a significant improvement in wear resistance. The characterization of the modified surface layers was made by means of a microscopic analysis and by X-ray diffraction. The case-hardening made it possible to obtain a wear resistance greater than that of the alloy not treated, minimal loss of mass by dry friction and an improvement in roughness as well as a good coefficient of friction.


2011 ◽  
Vol 43 (2) ◽  
pp. 205-214 ◽  
Author(s):  
A. Miltenovic ◽  
W. Predki

Sintered steel appears to be a very effective material for wheels in crossed helical gears. High demands are set on gears made from sintered steel regarding wear, fretting, tooth fracture and pitting load capacity. This report shows results of iron-based sintered material Fe1.5Cr0.2Mo in case of crossed helical gears concerning wear resistance and other damage types under different speed, torque and lubricants. As material variants, samples with additional treatment, such as pyrohydrolysis, case hardening, shot peening, sinter-hardening, and 2% copper addition are used.


2015 ◽  
Vol 798 ◽  
pp. 435-439
Author(s):  
S.D. Ambekar ◽  
Sandeep Kadam ◽  
S.A. Sonawane

This research is limited to study of wear resistance of 20MnCr5 (SAE 5120) alloy steel hardened by Carburizing and Cryogenics, which has wide application in industries like gears, shafts, bearings, pins etc. Cryogenics is used as a supplement treatment that is performed after carburizing. The abrasive wear study is performed on pin-on-disc tribotester. The counterface disc was kept same for both the heat treatments (carburizing and cryogenics). Sliding velocity of 0.8 m/s, 1.6 m/s, 2.4 m/s, Sliding Distance of 1200 m, 1400 m, 1600 m and Load of 3 kg, 4 kg and 5 kg were used to evaluate the wear resistance.


Alloy Digest ◽  
2020 ◽  
Vol 69 (10) ◽  

Abstract Lucefin Group 20MnCr5 and 20MnCrS5 are low-carbon, 1.2Mn-1.1Cr, alloy case-hardening steels that are used in the carburized or carbonitrided, and subsequently quench hardened and tempered, condition. These steels are, in general, used for large casehardened parts requiring high wear resistance and fatigue strength. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating and joining. Filing Code: SA-865. Producer or source: Lucefin S.p.A.


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