Abrasive wear resistance of starch consolidated and sintered high speed steel

Wear ◽  
2009 ◽  
Vol 267 (9-10) ◽  
pp. 1482-1489 ◽  
Author(s):  
P. Harlin ◽  
M. Olsson
2013 ◽  
Vol 594-595 ◽  
pp. 1117-1121
Author(s):  
Мazhyn Skakov ◽  
Bauyrzhan Rakhadilov ◽  
Merey Rakhadilov

In this work the influence of electrolytic-plasma nitriding on the abrasive wear-resistance of R6M5 high-speed steel were under research. We registered that after electrolytic-plasma nitriding on R6M5 steel surface modified layer is formed with 20-40 μm thickness and with increased microhardness of 9000-12200 MPa. Testing mode for the nitrided samples high-speed steel on abrasive wear developed. It is established, that electrolyte-plasma nitriding allows to increase wear-resistance of R6M5 steel surface layer comparing to original. It was determined that abrasive wear-resistance of R6M5 steel surface layer is increased to 25% as a result of electrolytic plasma nitriding. Thus, studies have demonstrated the feasibility and applicability of electrolytic-plasma nitriding in order to improve cutting tools work resource, working under friction and wear conditions.


2019 ◽  
Vol 40 (5) ◽  
pp. 392-395 ◽  
Author(s):  
G. V. Ratkevich ◽  
L. E. Afanasieva ◽  
I. A. Smolyakova ◽  
M. V. Novoselova

Author(s):  
B. Podgornik ◽  
V. Leskovsˇek ◽  
J. Vizˇintin

The aim of our work was to investigate the influence of deep-cryogenic treatment parameters (treatment time and temperature) and austenizing temperature on the tribological performance of powder-metallurgy (P/M) high-speed steel. Special emphasis was put on abrasive wear resistance and resistance to galling under dry sliding conditions. Abrasive wear resistance was tested under reciprocating sliding conditions using alumina ball, while galling resistance against austenitic stainless steel was determined in a load-scanning test rig. Tribological test were evaluated in terms of high-speed steel wear volume, coefficient of friction under reciprocating sliding, friction variation with load, and critical load for galling initiation and stainless steel transfer layer formation.


Alloy Digest ◽  
2019 ◽  
Vol 68 (4) ◽  

Abstract Sandvik APM 2730 is a powder metallurgical alloyed hot-isostatic-pressed high-speed tool steel with abrasive wear resistance and high-compressive strength. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on heat treating and machining. Filing Code: TS-763. Producer or source: Sandvik Steel Company.


2013 ◽  
Vol 712-715 ◽  
pp. 7-11 ◽  
Author(s):  
Mazhyn Skakov ◽  
Bauyrzhan Rakhadilov ◽  
Michael Sсheffler

This paper presents research of influence electrolyte plasma carbonitriding on tribological properties of R6M5 high-speed steel. Shows perspectiveness of carbonitriding high-speed steels in electrolyte plasma. The results of research demonstrated increasing wear-resistance of R6M5 steel after carbonitriding in electrolyte plasma. Under the same test conditions by the method of scratch-test have been determined that the depth of the scar of a modified layer has become less in comparison with the original sample, which indicates a significant increase of wear-resistance and hardness of the surface carbonitriding layer R6М5 steel. It was set that after electrolytic-plasma carbonitriding abrasive wear-resistance of the surface layers of R6M5 steel is increased by 25%. Introduction


Alloy Digest ◽  
2019 ◽  
Vol 68 (3) ◽  

Abstract Sandvik APM 2723 is a powder metallurgical alloyed hot-isostatic-pressed high-speed tool steel with abrasive wear resistance and high-compressive strength. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on heat treating. Filing Code: TS-758. Producer or source: Sandvik Steel Company.


2009 ◽  
Vol 416 ◽  
pp. 443-448 ◽  
Author(s):  
Hui Min Chen ◽  
Liu Jie Xu ◽  
Shi Zhong Wei

The expansion curves during the procedure of continuous cooling which high vanadium high speed steel (HSS) was tempered with 250°C, 550°C and 600°C after 1050°C quenching were determined by the Gleeble-1500D thermal simulation test device, and the curves were analyzed subsequently. The hardness and microstructure of high vanadium HSS under different tempering temperatures were analyzed by means of SEM, TEM and X-ray diffraction, and the influence of tempering temperature on the hardness and retained austenite were discussed. At the same time, the wear resistance of the material at different tempering temperatures was studied by the HST-100 friction wear testing machine, and the influence of microstructure on wear resistance was analyzed further. The studies show that the structures are not transformed at 250°C tempering with cooling rate of 0.5°C/s; The retained austenite transformed to martensite at about 390°C when 550°C and 600°C tempering. Wear test shows that the abrasive wear performance is excellent with 550°C tempering after 1050°C quenching because of the decrease of the amount of retained austenite, therefore the heat treatment of 550°C tempering after quenching of high vanadium HSS is optimal.


2007 ◽  
Vol 334-335 ◽  
pp. 21-24 ◽  
Author(s):  
De Chun Lou ◽  
Jan K. Solberg ◽  
Odd Magne Akselsen ◽  
Nina Dahl

In this paper, new steel matrix composites have been developed by powder metallurgy/HIP and abrasive wear and aluminum sticking resistance of the materials have been investigated. The microstructure examination showed that Co-coated WC reinforcement was partly dissolved in a high speed steel (HSS) matrix and an interface layer of M6C formed, but both Co-coated WC and NbC reinforcements were stable in a high vanadium tool steel (CPM10V) matrix. The NbC reinforcement was also stable in a HSS matrix at the same HIP parameters. Property test results indicate that Co-coated WC-reinforced composites have higher abrasion resistance than the composites with NbC, but the latter possess the lowest aluminum sticking propensity. Compared with unreinforced alloys, abrasion wear resistance of the composites was increased by a factor of 3 to 10, most for the HSS-matrix composites.


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