Effects of the sub-zero treatment condition on microstructure, mechanical behavior and wear resistance of W9Mo3Cr4V high speed steel

Yan, Xianguo; Li, D.Y.

doi:10.1016/j.wear.2012.12.037

Cited by 69 publications

(53 citation statements)

References 34 publications

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“…Although neither carbon atom clustering nor the segregation of carbon atoms in lattice defects involves largescale changes, it was the atom clustering process that led to a minimum change in specific volumes, as the carbon atoms remained dissolved in the iron matrix; hence, the average lattice parameter and the volume remained unaffected [14]. The absence of peaks in the dilatometric signal supports clustering to be the dominant effect.…”

Section: I-ii Pre-precipitation Processesmentioning

confidence: 99%

“…One of the reasons [13] is the occurrence of irreversible phase transformations cited above, which inhibits further transformation during cryogenic treatment. It has recently been demonstrated [14] that sub-zero treatment prior to tempering led to less increase in the volume fraction of secondary carbide particles and that the wear resistance ability of the studied steel was maximized by heat treatment procedure in the following order: austenitizing, quenching, DCT, and tempering.…”

Section: Introductionmentioning

confidence: 99%

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Influence of deep cryogenic treatment on the thermal decomposition of Fe–C martensite

Calzada

Pellizzari

2014

J Mater Sci

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The beneficial effects of deep cryogenic treatment (DCT) at temperatures close to -180°C on certain mechanical properties of steels are well known, although the metallurgical base mechanism of DCT still needs further clarification. In this study, the thermal decomposition of steel martensite (100Cr6) subjected to low-temperature soaking over different periods (SDCT = 5 min at -180°C, LDCT = 24 h at -180°C) is investigated by means of differential scanning calorimetry and dilatometry. The results were compared with those for the same conventionally quenched and tempered steel. Isochronal annealing experiments at different heating rates were performed, in order to highlight the main tempering stages and to obtain their relevant activation energies. DCT was clearly shown to lower the Ea of the pre-precipitation process more intensely than in the quenched steel. This result may probably be ascribed to an increased dislocation density and to the activation of the carbon segregation process in larger amounts of martensite. The precipitation of transition carbides was also enhanced by the low-temperature conditioning of martensite. As expected, DCT transformed the retained austenite, so that the corresponding peaks almost disappeared from both the dilatometric and the DSC patterns.

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Section: I-ii Pre-precipitation Processesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of deep cryogenic treatment on the thermal decomposition of Fe–C martensite

Calzada

Pellizzari

2014

J Mater Sci

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“…Based on this finding, it would be preferable to use a larger normal load for the pin-on-disc test for the wear-track width to be in a range of 20-80 % of the ball diameter. Yan 10 states that although the hardness and wear tests provided information on the properties of the cryogenically treated HSS, they may not properly represent the loads of real tools in the operating conditions. For this reason, the heat treatment of P/M HSS Vanadis 23 will be recommended after a durability test of real tools.…”

Section: -4mentioning

confidence: 99%

“…This fact must also be included in the design of the parameters of DCT for real tools. 10 Vanadis 23 (1.3395) is a chromium-molybdenum-tungsten-vanadium-alloyed high-speed P/M steel which is characterized by an excellent combination of wear resistance and toughness, correct hardness for the application, very good dimensional stability during heat treatment and temper resistance. The maximum hardness in the soft-annealed condition is 260 HBW.…”

Section: Introductionmentioning

confidence: 99%

Study of the properties and structure of selected tool steels for cold work depending on the parameters of heat treatment

Kuřík¹,

J²,

Vlach³

et al. 2017

Mater. Tehnol.

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Tool steels produced with powder metallurgy (P/M) are perspective materials, although they are more expensive in comparison with tool steels produced with the conventional method. The work focuses on the study of mechanical properties and structure depending on the heat-treatment conditions for the two tool steels. These are the 1.2379 steel for cold work produced with classical metallurgy and high-speed P/M steel Vanadis 23. Both materials were heat treated in the conventional manner to achieve a hardness of 61 HRC. They were also exposed to a cryogenic treatment at temperatures of -90°C and -196°C for 4 h between the hardening and the tempering. We evaluated the hardness and strength using the three-point-bending test and the wear resistance using the pin-on-disk method. Keywords: powder metallurgy, high-speed steels, heat treatment, cryogenic treatment, wear rate Orodna jekla, proizvedena s postopki metalurgije v prahu (angl. P/M) so perspektivni materiali, kljub temu da so dra`ji od tistih izdelanih s konvencionalno metodo. Delo je osredoto~eno na {tudijo mehanskih lastnosti in strukturo, v odvisnosti od pogojev toplotne obdelave za ti dve vrsti orodnih jekel. To so jekla 1.2379 za delo v hladnem, proizvedena s klasi~nimi metalur{kimi postopki in hitrorezno P/M jeklo Vanadis 23. Oba materiala sta bila toplotno obdelana s konvencionalnimi postopki, glede na njuno sestavo, tako, da sta dosegli trdnost 61 HRC. Bili sta tudi izpostavljeni obdelavi s podhlajevanjem pri temperaturah od -90°C in -196°C za 4 h med strjevanjem in temperiranjem. Trdnost je bila ocenjena pri trito~kovnem mehanskem testu (zvijanje) in s testom obrabe po metodi pin-on-disk. Klju~ne besede: metalurgija prahov, visokorezna jekla, toplotna obdelava, obdelava s podhlajevanjem, stopnja obrabe

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“…Authors in [17] investigated the combined impact of the cryogenic temperature with tempering on the mechanical properties and wear resistance of the W9 HSS. They concluded that all varieties of DCT influenced the wear resistance and hardness of W9 HSS.…”

Section: Introductionmentioning

confidence: 99%

Cutting performance of deep cryogenic treated and nitrided HSS cutting tool inserts

Šolić

Schauperl

Tropša

2019

Teh. glas. (Online)

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High speed steel (HSS) is a very important industrial tool material and has been constantly improved for different wear resistance applications and cutting tools, i.e. drills, milling cutters, hobs and for the cutting tools in which the economical cutting speed is too low for choosing the carbide tools. The properties of HSS depend significantly on the parameters of the conducted heat treatment. In this paper, the influence of deep cryogenic treatment in combination with nitriding of metallurgical powder metallurgy HSS on the wear resistance was measured. Additionally, the cutting performance in a single point cutting tool machinability test at the configuration of the dry low-speed turning of steel was investigated. The results showed that deep cryogenic treatment itself, and in combination with nitriding, resulted in the reduction of the wear rate. The results of the single point cutting tool machinability test showed that deep cryogenic treated and nitrided HSS inserts performed worse than the classically heat-treated inserts and deep cryogenic treated HSS inserts exhibited approximately the same flank wear as the nitrided ones.

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Effects of the sub-zero treatment condition on microstructure, mechanical behavior and wear resistance of W9Mo3Cr4V high speed steel

Cited by 69 publications

References 34 publications

Influence of deep cryogenic treatment on the thermal decomposition of Fe–C martensite

Influence of deep cryogenic treatment on the thermal decomposition of Fe–C martensite

Study of the properties and structure of selected tool steels for cold work depending on the parameters of heat treatment

Cutting performance of deep cryogenic treated and nitrided HSS cutting tool inserts

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