Phase transformation in high-speed cylindrical grinding of SiC and its effects on residual stresses

Ni, Jiaming; Li, Beizhi

doi:10.1016/j.matlet.2012.08.119

Cited by 31 publications

(14 citation statements)

References 11 publications

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“…However, experimental results have shown that high temperature and pressure in the machining process would deteriorate the surface finish, including surface roughness [4][5][6], phase transformation [7,8], subsurface cracks and residual stress [9,10]. They could produce detrimental impacts on the microstructure of RB-SiC/Si composites jointly [3,11,12].…”

Section: Introductionmentioning

confidence: 99%

“…However, the impact of material microstructure, especially the phase transformation during grinding, on the surface generation was not discussed. Actually, only a limited number of studies [10,16] have been conducted to investigate grinding induced amorphization and its influence on surface generation mechanism, while the influence of C segregation and oxidation on surface fracture has been rarely discussed during the grinding of RB-SiC/Si. Based on the above discussion, the present work is aimed to investigate the surface generation mechanism based on amorphization and C segregation of RB-SiC/Si composites under microgrinding.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Amorphization and C segregation based surface generation of Reaction-Bonded SiC/Si composites under micro-grinding

Zhang

Zhao

et al. 2015

International Journal of Machine Tools and Manufacture

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Amorphization and C segregation based surface generation of Reaction-Bonded SiC/Si composites under micro-grinding

Zhang

Zhao

et al. 2015

International Journal of Machine Tools and Manufacture

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“…As the typical representative, silicon carbide (SiC) ceramics possess high specific stiffness, low thermal deformation coefficient, low density, and chemical stability [3,4]. Although prepared by near net forming technology, the SiC ceramic components still need machining to meet assembling or application requirements [5].…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on matching performance of grinding and vibration parameters in ultrasonic assisted grinding of SiC ceramics

Ding

et al. 2016

Int J Adv Manuf Technol

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Ultrasonic assisted grinding (UAG) is an outstanding technology suitable to machine advanced ceramics. During UAG, the effect of ultrasonic vibration on grinding process is mainly determined by matching performance between grinding and vibration parameters in theory. However, this problem is still lack of deep study. With an objective to study the matching performance deeply, conventional grinding (CG) and UAG tests were conducted. The effects of grinding parameters on grinding force, ground surface profile wave, and ground surface roughness between UAG and CG were studied. The results showed that the grinding force, ground surface profile wave height, and ground surface roughness during UAG were reduced in varying degrees compared to CG. Additionally, the reduction percentage that means the effect of ultrasonic vibration on grinding process decreased significantly with increasing grinding speed while affected slightly by increasing of feedrate and grinding depth. To deeply analyze this variety law of the ultrasonic vibration effect during UAG, a matching performance equation referred to grinding wheel diameter, grinding, and vibration parameters is proposed. When the grinding speed increases from 1.26 to 31.5 m/s for feedrate of 100 mm/min and grinding depth of 5 μm, reduction percentage in grinding force for UAG compared to CG (K F ) decreases from about 20 to 4 % and in ground surface roughness (K R ) decreases from 35 to 4 %. With regard to the average difference height (Δh) between the UAG and CG profile waves, it decreases from 2.77 μm almost to zero.

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“…They also made two important conclusions: (1) the formation of austenite is attributed to a combined effect of machining parameters, such as cutting speed, tool geometry, tool material and coolant; and (2) the martensiteto-austenite reverse transformation in 18% Ni maraging steel most probably results from the complex stress-strain configuration during machining processes. Moreover, the grinding-induced phase transformation can be alleviated jointly by elevating grinding wheel speed and using higher feed rate (Ni and Li, 2012).…”

Section: Introductionmentioning

confidence: 99%

Material phase transformation at high heating rate during grinding

Zhou

Steven

2016

Machining Science and Technology

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The modeling of maraging steel phase transformation in grinding process is presented in this article. Specifically, heating rate and contact zone temperature are examined to quantitatively link material properties, wheel topography characteristics and process parameters to the kinetics of diffusion-controlled transformation and diffusionless transformation. Physics-based modeling and prediction for the volume fractions of phase transformation in continuous heating under anisothermal conditions are developed based upon the addition of volume fractions in sequential segmented isothermal processes of grinding. The predictive model is validated by 18Ni (250) maraging steel grinding experiments, X-ray diffraction measurements and regression analyses.Results are compared to the model predicted of martensite and ferrite phase volume fractions after grinding. The physics-based model is experimentally validated as viable to predict the occurrence and extent of phase transformation related to material properties, wheel topography and grinding thermal-mechanical loading. Finally, correlation analysis is used to quantify the importance of the input variables to both model-predicted and X-ray diffraction measured phase transformation results.

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Phase transformation in high-speed cylindrical grinding of SiC and its effects on residual stresses

Cited by 31 publications

References 11 publications

Amorphization and C segregation based surface generation of Reaction-Bonded SiC/Si composites under micro-grinding

Amorphization and C segregation based surface generation of Reaction-Bonded SiC/Si composites under micro-grinding

Experimental studies on matching performance of grinding and vibration parameters in ultrasonic assisted grinding of SiC ceramics

Material phase transformation at high heating rate during grinding

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