Effects of Deep Cryogenic Treatment on the Wear Resistance and Mechanical Properties of AISI H13 Hot-Work Tool Steel

2015 ◽  
Vol 24 (11) ◽  
pp. 4431-4439 ◽  
Author(s):  
Adem Çiçek ◽  
Fuat Kara ◽  
Turgay Kıvak ◽  
Ergün Ekici ◽  
İlyas Uygur
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Tool Steel ◽  
Cryogenic Treatment ◽  
Deep Cryogenic Treatment ◽  
Hot Work Tool Steel ◽  
Aisi H13

Effect of Deep Cryogenic Treatment on Carbide Precipitation and Mechanical Properties of Tool Steel

2006 ◽  
Vol 118 ◽  
pp. 9-14 ◽  
Author(s):  
Young Mok Rhyim ◽  
Sang Ho Han ◽  
Young Sang Na ◽  
Jong Hoon Lee
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Tool Steel ◽  
Retained Austenite ◽  
Cryogenic Treatment ◽  
Carbide Precipitation ◽  
Deep Cryogenic Treatment ◽  
Tempering Temperature ◽  
Fine Carbide ◽  
Forming Temperature

It is well known that the durability of tool steel could be improved by deep cryogenic treatment. It has been assumed that the increase of service life of tool steel caused by decrease of retained austenite and/or by formation of nano-scale fine η-carbide. But the principles of deep cryogenic treatment remain unclear yet. In this research, to manifest the effect of deep cryogenic treatment on wear resistance, the specimen was emerged in liquid nitrogen for 20 hours for deep cryogenic treatment after austenitizing and the following tempering temperature was varied. The microstructure of specimens was observed using TEM and the mechanical properties and wear resistance were examined. As the tempering temperature increased, the carbides became larger and fine carbides were formed above certain temperature. In the case of deep cryogenic treated specimen, the number of carbides increased while the carbides size was decreased, furthermore, the fine carbide forming temperature was lowered also. It was considered that the deep cryogenic treatment increased the driving force for the nucleation of carbides. As tempering temperature increased, hardness decreased while wear resistance and impact energy increased. The deep cryogenic treated specimens showed this tendency more clearly. It was considered that the wear resistance is affected not only to the hardness but also to the precipitation of fine carbides, and this carbide evolution can be optimized through the deep cryogenic treatment.

Effect of Deep Cryogenic Process on the Microstructure and Hardness and Wear Resistance of High Carbon Tool Steel

2018 ◽  
Vol 934 ◽  
pp. 100-104
Author(s):  
Yuan Ching Lin ◽  
Ji Wei Gong
Keyword(s):  
Wear Resistance ◽  
Tool Steel ◽  
Cryogenic Treatment ◽  
Wear Test ◽  
High Carbon ◽  
Deep Cryogenic Treatment ◽  
Treatment Conditions ◽  
The Matrix ◽  
Cryogenic Process ◽  
The Moment

In this investigation, the effects of different heat treatment conditions on the mechanical properties of high carbon tool steel (SK2) were explored. Experimental results indicated that immediately doing deep cryogenic treatment can effectively reduce retained austenite after quenching. The moment of the holding time for the cryogenic treatment was extended can promote the fine carbides precipitated, and thus increased its hardness. The results of X-ray diffraction showed that the carbides in the matrix included Fe3C and Fe7C3.The wear test results demonstrated that the specimen with Q-T1hr-C24hr-T1hr treatment has the highest wear resistance than the others, which was caused by the effect of several tempering processes to improve toughness of the matrix and to precipitate considerable quantities of the fine carbides.

On the Optimization of Microstructure and Mechanical Properties of CrWMn Tool Steel by Deep Cryogenic Treatment

2019 ◽  
Vol 90 (5) ◽  
pp. 1800523 ◽  
Author(s):  
Kaikai Wang ◽  
Kaixuan Gu ◽  
R. D. K. Misra ◽  
Liubiao Chen ◽  
Xuanzhi Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tool Steel ◽  
Cryogenic Treatment ◽  
Deep Cryogenic Treatment ◽  
Microstructure And Mechanical Properties

scholarly journals Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1038 ◽  
Author(s):  
Pello Jimbert ◽  
Maider Iturrondobeitia ◽  
Julen Ibarretxe ◽  
Roberto Fernandez-Martinez
Keyword(s):  
Wear Resistance ◽  
Tool Steel ◽  
Scientific Literature ◽  
Wear Behavior ◽  
Cryogenic Treatment ◽  
Cold Work ◽  
Secondary Carbide ◽  
Tool Steels ◽  
Deep Cryogenic Treatment ◽  
Cold Work Tool Steel

The effects of deep cryogenic treatment (DCT) on the wear behavior of different tool steels have been widely reported in the scientific literature with uneven results. Some tool steels show a significant improvement in their wear resistance when they have been cryogenically treated while others exhibit no relevant amelioration or even a reduction in their wear resistance. In this study, the influence of DCT was investigated for a grade that has been barely studied in the scientific literature, the AISI A8 air-hardening medium-alloy cold work tool steel. Several aspects were analyzed in the present work: the wear resistance of the alloy, the internal residual stress, and finally the secondary carbide precipitation in terms of lengths and occupied area and its distribution into the microstructure. The results revealed a reduction in the wear rate of about 14% when the AISI A8 was cryogenically treated before tempering. The number of carbides that precipitated into the microstructure was 6% higher for the cryogenically treated samples, increasing from 0.68% to 0.73% of the total area they covered. Furthermore, the distribution of the carbides into the microstructure was more homogenous for the cryogenically treated samples.

scholarly journals Comparative Study on the Effect of Nitriding and Microwave Coating on Microstructure, Hardness and Wear of AISI H13 Tool Steel

2018 ◽  
Vol 8 (04) ◽  
Author(s):  
Mohammad Iqbal Yunus ◽  
Kanwarjeet Singh ◽  
Gaurav Arora ◽  
Ranganath M Singari
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Wear Resistance ◽  
Tool Steel ◽  
Coated Sample ◽  
Case Hardening ◽  
H13 Tool Steel ◽  
Aisi H13 ◽  
Aisi H13 Tool Steel ◽  
Nitrided Sample

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.

Effects of Deep Cryogenic Treatment on Tribological Properties of the Tool Steel DC53

2013 ◽  
Vol 311 ◽  
pp. 477-481
Author(s):  
Yuh Ping Chang ◽  
Huann Ming Chou ◽  
Jeng Haur Horng ◽  
Li Ming Chu ◽  
Zi Wei Huang
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Tool Steel ◽  
Tribological Properties ◽  
Cryogenic Treatment ◽  
Treatment Technology ◽  
Deep Cryogenic Treatment ◽  
The Past ◽  
Surface Magnetization

The bad quality of machining surfaces caused by the micro wear of pressing parts has been a very big trouble for the engineers over the past decades. In order to decrease the surface wear, the technology of heat treatment is used popular. Many papers about the heat treatment technology had been proposed. Especially, the deep cryogenic treatment has been used widely for the purpose of wear-resistance in the industry. Moreover, the method of using variations of surface magnetization to monitor the dynamic tribological properties between the metal pairs has been applied successfully by the author. Therefore, this paper is base on the above statements to further investigate the tribological properties of the tool steel by deep cryogenic treatment. It can be clarified for effects of different deep cryogenic treatment temperatures on wear-resistance of the tool steel DC53. Besides, the purpose of better quality and faster product speed of the pressing process can then be obtained.

Wear Behaviour of Cryogenic Treated M2 Tool Steel under Dry Sliding Condition

2015 ◽  
Vol 798 ◽  
pp. 395-401 ◽  
Author(s):  
S.A. Sonawane ◽  
V.K. Tripathi ◽  
S.D. Ambekar
Keyword(s):  
Wear Resistance ◽  
Tool Steel ◽  
High Speed ◽  
Cryogenic Treatment ◽  
High Speed Steel ◽  
Wear Behaviour ◽  
Wear Loss ◽  
Dry Sliding ◽  
Deep Cryogenic Treatment ◽  
Steel Material

The technique of cryogenic treatment of cutting tools is an inexpensive permanent treatment process that improves the physical and mechanical properties of materials such as metals, plastics and composites. It promotes the transformation of the retained austenite into martensite at cryogenic temperatures and also facilitates the formation of fine carbides in the martensite, thereby improving the wear resistance.This paper compares the wear behaviour of hardened and triple tempered AISI M2 high-speed steel and the same steel that was hardened and triple tempered in conjunction with a deep-cryogenic treatment at 88K for 16 and 24 hours. Test materials were subjected to wear tests on pin-on-disc machine in dry sliding condition. Equations are developed for predicting the wear resistance of M2 tool steel material. The hardness data wear loss and microstructure throw light on the improvement in wear resistance property of the M2 tool steel.It is demonstrated that the properties of the cryogenically treated samples are superior to those of conventionally treated. 24 hours cryogenically treated hardened and triple tempered M2 tool steel shows excellent wear resistance properties over 16 hours cryo-treated M2 and conventionally treated M2 tool steel material.

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