Influence of Cryogenic Treatment on Grinding Residual Stress of WC-Co Cemented Carbides

Yi, Yuan; Xu, Cheng

doi:10.4028/www.scientific.net/amr.538-541.1746

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…Thermal residual stresses were induced due to thermal mismatch between the WC and the Co phase. A 20% reduction in residual stresses after CT execution was observed due to the cracking and plastic deformation in the WC grains [130].…”

Section: Cryogenic Application In Manufacturing Engineeringmentioning

confidence: 99%

Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability after Cryogenic Treatment: A Review

2019

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Cryogenic treatment is a supplemental structural and mechanical properties refinement process to conventional heat treatment processes, quenching, and tempering. Cryogenic treatment encourages the improvement of material properties and durability by means of microstructural alteration comprising phase transfer, particle size, and distribution. These effects are almost permanent and irreversible; furthermore, cryogenic treatment is recognized as an eco-friendly, nontoxic, and nonexplosive process. In addition, to encourage the application of sustainable techniques in mechanical and manufacturing engineering and to improve productivity in current competitive markets, cryo-treatment can be considered as a promising process. However, while improvements in the properties of materials after cryogenic treatment are discussed by the majority of reported studies, the correlation between microstructural alteration and mechanical properties are unclear, and sometimes the conducted investigations are contradictory with each other. These contradictions provide different approaches to perform and combine cryogenic treatment with pre-and post-processing. The present literature survey, mainly focused on the last decade, is aimed to address the effects of cryogenic treatment on microstructural alteration and to correlate these changes with mechanical property variations as a consequence of cryo-processing. The conclusion of the current review discusses the development and outlines the trends for the future research in this field.

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Section: Cryogenic Application In Manufacturing Engineeringmentioning

confidence: 99%

Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability after Cryogenic Treatment: A Review

2019

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“…The existing work has shown that the grinding-induce residual stress in the ground carbide materials is compressive in WC and tensile in Co (Hegeman, De Hosson, & De With, 2001;Yin et al, 2004), and it can be relieved effectively by annealing heat treatment (Yang, Odén, Johansson-Jõesaar, & Llanes, 2014). Relaxation degree of residual stresses can be defined as the relaxation rate, and it can be expressed as (Yuan & Xu, 2012):…”

Section: Effect Of Annealing Temperaturementioning

confidence: 99%

Annealing effect on the mechanical properties of ultrafine WC–Co materials

Yuan

2017

Journal of Applied Research and Technology

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In dry machining, the tool-chip interface temperature is a critical factor affecting the engineering performance of WC-Co tools. As the temperature variation of the cutting tool in dry machining is similar to that in annealing process, the effect of tool-chip interface temperature on the mechanical properties of cutting tool materials in dry machining can be studied by means of annealing experiment. In this paper, a series of annealing experiments of ultrafine-grained WC-Co materials were conducted, and the effects of the annealing temperature and holding time on the mechanical properties of WC-Co materials, including flexural strength, hardness and fracture toughness, were investigated. The results show that under the experimental conditions, the annealing temperature dominates the mechanical properties of WC-Co materials. The flexural strength and fracture toughness of the ultrafine-grained WC-Co materials decrease in different extent with increasing of annealing temperature, whereas the hardness does not change obviously. The measurements of the microstructures and residual stresses revealed that the deterioration of mechanical properties of WC-Co materials after annealing can be attributed to the relaxation of compressive residual stress.

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“…The results showed that: cryogenic treatment can make cemented carbide alloy phase atomic migration and rearrangement and tend to be uniformity, so as to improve high cobalt carbide phase composition, while can make the solid solution of W and C more uniform distribution, improving solid solution strengthening effects, thus significantly improve the bending strength of low cobalt magnetic carbide. Yuan, YG, etc [13] studied the effects of cryogenic treatment on WC-Co cemented carbide grinding residual stress. The results showed that: cryogenic treatment can reduce the residual stress on the surface of the cemented carbide.…”

Section: Cemented Carbide Cryogenic Treatment Of Domestic and Foreign...mentioning

confidence: 99%

Research Status and Application Prospect of Deep Cryogenic Treatment Technology on Cemented Carbide

Guan

Liu

et al. 2014

AMR

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Cryogenic treatment as an effective non-destructive modification of material, has been widely applied. Equipments and technologies of cryogenic treatment were described, the current research status of cryogenic treatment technology on cemented carbide was reviewed, the action mechanism of cemented carbide cryogenic treatment was analyzed. Finally, in this paper some views and outlooks of cryogenic treatment technology in industrial applications were put forward.

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Influence of Cryogenic Treatment on Grinding Residual Stress of WC-Co Cemented Carbides

Cited by 4 publications

References 7 publications

Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability after Cryogenic Treatment: A Review

Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability after Cryogenic Treatment: A Review

Annealing effect on the mechanical properties of ultrafine WC–Co materials

Research Status and Application Prospect of Deep Cryogenic Treatment Technology on Cemented Carbide

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