Study on the surface formation mechanism in scratching test with different ultrasonic vibration forms

Brittle materials are popularly used as engineering materials for excellent properties. But the properties of brittle materials are different and special, and cause to different surface formation mechanism during the grinding process. In the study, surface roughnesses after grinding with different mesh size diamond wheels were measured. Combined with scanned surface topographies, the relation between the surface roughness and the properties of these brittle materials was discussed. It could be found that the material properties led to the different surface characteristics of brittle materials.

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Investigation on the surface formation mechanism in micro milling of cemented carbide

International Journal of Refractory Metals and Hard Materials ◽

10.1016/j.ijrmhm.2018.09.001 ◽

2019 ◽

Vol 78 ◽

pp. 61-67 ◽

Cited By ~ 12

Author(s):

Xian Wu ◽

Liang Li ◽

Ning He ◽

Guolong Zhao ◽

Jianyun Shen

Keyword(s):

Formation Mechanism ◽

Cemented Carbide ◽

Micro Milling ◽

Surface Formation

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Surface texture formation mechanism based on the ultrasonic vibration-assisted grinding process

International Journal of Machine Tools and Manufacture ◽

10.1016/j.ijmachtools.2020.103595 ◽

2020 ◽

Vol 156 ◽

pp. 103595 ◽

Cited By ~ 1

Author(s):

Jingliang Jiang ◽

Shufeng Sun ◽

Dexiang Wang ◽

Yong Yang ◽

Xinfu Liu

Keyword(s):

Ultrasonic Vibration ◽

Formation Mechanism ◽

Surface Texture ◽

Grinding Process ◽

Texture Formation ◽

Ultrasonic Vibration Assisted Grinding

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A Study on Surface Formation Mechanism by Molecular Beam Epitaxy. (2nd Report). An Effect of Substrate Orientation upon Si-Si Homo-Epitaxial Growth Mechanism.

Journal of the Japan Society for Precision Engineering ◽

10.2493/jjspe.67.316 ◽

2001 ◽

Vol 67 (2) ◽

pp. 316-321 ◽

Cited By ~ 1

Author(s):

Arata KANEKO ◽

Yuji FURUKAWA

Keyword(s):

Molecular Beam Epitaxy ◽

Epitaxial Growth ◽

Formation Mechanism ◽

Growth Mechanism ◽

Molecular Beam ◽

Surface Formation ◽

Substrate Orientation

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Characteristics and Formation Mechanism of Segregation During the Solidification of Aluminum Alloy with Ultrasonic Radiation

Materials Science Forum ◽

10.4028/www.scientific.net/msf.697-698.383 ◽

2011 ◽

Vol 697-698 ◽

pp. 383-388 ◽

Cited By ~ 2

Author(s):

X.Q. Li ◽

Ri Peng Jiang ◽

Z.H. Li ◽

L.H. Zhang ◽

X. Zhang

Keyword(s):

Aluminum Alloy ◽

Ultrasonic Vibration ◽

Formation Mechanism ◽

Positive Impact ◽

Direct Chill ◽

Ultrasonic Field ◽

Homogeneous Distribution ◽

Ultrasonic Radiation ◽

Cu Alloy ◽

Physical And Chemical

An industrial experiment was carried out to study the characteristics and formation mechanism of segregation in semi-continuous direct-chill (DC) casting ofΦ300mmaluminum alloybillet with ultrasonic radiation of different powers. Results show that both microsegregation and macrosegregation of solute elements Zn, Mg, Cu are improved remarkably when ultrasonic vibration is applied to A1-Zn-Mg-Cu alloy. Meanwhile, the higher power of ultrasonic vibration is, the more homogeneous distribution of solute elements becomes, and then the more effective improvement of segregation is achieved. With a 240W ultrasonic treatment (UST), the intra-grain solution degree of elements Zn, Mg and Cu increases by 35.8%, 41.8% and 40.2% respectively while the macrosegregation ratio decreases by 10.3%, 7.4%, 6.7%. Physical and chemical effects caused by ultrasonic field exert a positive impact on the solute elements diffusion, grain refinement, the depth of sump and solution degree et al, which contribute to the improvements of segregation.

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