Study on the use of CuSnTi brazing alloy for induction brazing of diamond grits surface-treated by direct current plasma chemical vapor deposition

Ma, Bojiang; Li, Feng

doi:10.1016/j.ijrmhm.2013.05.006

Cited by 20 publications

(5 citation statements)

References 8 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The knowledge on the growth behaviors of TiC is essential for the understanding of failure mechanism of brazed diamond grits, and hence the optimization of brazing process. However, existing research focus more on the characterization of the interface products formed between diamond grits and commercial Ti-containing filler alloys at a certain brazing temperature [9][10][11][12][13], or the technology development of brazing process [14,15]. To the best knowledge of authors, there is little information available regarding the growth behavior of interfacial TiC at variable brazing temperatures, especially at relatively low brazing temperatures [16].…”

Section: Introductionmentioning

confidence: 99%

Formation of TiC via interface reaction between diamond grits and Sn-Ti alloys at relatively low temperatures

Liao

Wang

et al. 2017

International Journal of Refractory Metals and Hard Materials

View full text Add to dashboard Cite

In this paper, interfacial reaction between diamond grit and Sn-6Ti alloy was systematically studied at brazing temperatures from 600 to 1030 o C. A thin and uniform layer of scallop-like nano-sized TiC grains was formed after brazing for 30 minutes at 600 o C, and interfacial TiC grains subsequently coarsened as brazing temperature increased to 740 and 880 o C. Strip-like columnar TiC grains in a bilayer structure was further grown as brazing temperature increased to 930 o C. After brazing at 1030 o C, a dense layer of columnar TiC grains were formed. Based on the TEM micrographs of interfacial TiC, the formation and evolution of the growth morphologies of interfacial TiC was believed to be controlled by the diffusion of C flux from diamond grits, which is dependent on the brazing temperatures.

show abstract

Section: Introductionmentioning

confidence: 99%

Formation of TiC via interface reaction between diamond grits and Sn-Ti alloys at relatively low temperatures

Liao

Wang

et al. 2017

International Journal of Refractory Metals and Hard Materials

View full text Add to dashboard Cite

show abstract

“…It is therefore expected that the diamond retention is strengthened through diamond surface metallization by coating with strong carbide-forming elements (Mo, Ti, V, W, Cr, etc.) prior to blending with the metal matrix powders [25][26][27]. Metallization of the diamond surface has some basic and important roles.…”

Section: Surface Treatment Of Diamondmentioning

confidence: 99%

A Review of the Diamond Retention Capacity of Metal Bond Matrices

Xiao-jun

Duan

2018

Metals

View full text Add to dashboard Cite

This article presents a review of the current research into the diamond retention capacity of metal matrices, which largely determines the service life and working performance of diamond tools. The constitution of diamond retention capacity, including physical adsorption force, mechanical inlaying force, and chemical bonding force, are described. Improved techniques are summarized as three major types: (1) surface treatment of the diamond: metallization and roughening of the diamond surface; (2) modification of metal matrix: the addition of strong carbide forming elements, rare earth elements and some non-metallic elements, and pre-alloying or refining of matrix powders; (3) change in preparation technology: the adjustment of the sintering process and the application of new technologies. Additionally, the methods used in the evaluation of diamond retention strength are introduced, including three categories: (1) instrument detection methods: scanning electron microscopy, X-ray diffractometry, energy dispersive spectrometry and Raman spectroscopy; (2) mechanical test methods: bending strength analytical method, tension ring test method, and other test methods for chemical bonding strength; (3) mechanical calculation methods: theoretical calculation and numerical computation. Finally, future research directions are discussed.

show abstract

“…Diamond tools are widely used in the field of processing and manufacturing with the industrialization of synthetic diamond (Artini et al , 2012; Zhang et al , 2022; Cui et al , 2022; Sun and Xiao, 2018). Herein, brazing diamond tools have been extensively used because of their outstanding interfacial bonding strength and mechanical properties (Wang et al , 2009; Buhl et al , 2010; Ma and Lian, 2013; Mukhopadhyay and Ghosh, 2022; Chen et al , 2021). However, due to the chemical inertia of diamond, most metal elements have poor wettability to diamond.…”

Section: Introductionmentioning

confidence: 99%

Interfacial behavior and mechanism of brazed diamond with CeO₂-added Ni-Cr filler alloy: a combined first-principles and experimental study

Zhang

et al. 2023

SSMT

View full text Add to dashboard Cite

Purpose This paper aims to investigate the effect and mechanism of O atom single doping, Ce and O atoms co-doping on the interfacial microscopic behavior of brazed Ni-Cr/diamond. Design/methodology/approach Using first-principles calculations, the embedding energy, work of separation, interfacial energy and electronic structures of Ni-Cr-O/diamond and Ni-Cr-O-Ce/diamond interface models were calculated. Then, the effect of Ce and O co-doping was experimentally verified through brazed diamond with CeO2-added Ni-Cr filler alloy. Findings The results show that O single-doping reduces the interfacial bonding strength between Ni-Cr filler alloy and diamond but enhances its interfacial stability to some extent. However, the Ce and O co-doping simultaneously enhances the interfacial bonding strength and stability between Ni-Cr filler alloy and diamond. The in-situ formed Ce-O oxide at interface impedes the direct contact between diamond and Ni-Cr filler alloy, which weakens the catalytic effect of Ni element on diamond graphitization. It is experimentally found that the fine rod-shaped Cr3C2 and Cr7C3 carbides are generated on diamond surface brazed with CeO2-added Ni-Cr filler alloy. After grinding, the brazed diamond grits, brazed with CeO2-added Ni-Cr filler alloy, present few fracture and the percentage of intact diamond reaches 67.8%. Compared to pure Ni-Cr filler alloy, the brazed diamond with CeO2-added Ni-Cr filler alloy exhibit the better wear resistance and the slighter thermal damage. Originality/value Using first-principles calculations, the effect of Ce and O atoms co-doping on the brazed diamond with Ni-Cr filler alloy is investigated, and the calculation results are verified experimentally. Through the first-principles calculations, the interface behavior and reaction mechanism between diamond and filler alloy can be well disclosed, and the composition of filler alloy can be optimized, which will be beneficial for synergistically realizing the enhanced interface bonding and reduced thermal damage of brazed diamond.

show abstract

Study on the use of CuSnTi brazing alloy for induction brazing of diamond grits surface-treated by direct current plasma chemical vapor deposition

Cited by 20 publications

References 8 publications

Formation of TiC via interface reaction between diamond grits and Sn-Ti alloys at relatively low temperatures

Formation of TiC via interface reaction between diamond grits and Sn-Ti alloys at relatively low temperatures

A Review of the Diamond Retention Capacity of Metal Bond Matrices

Interfacial behavior and mechanism of brazed diamond with CeO₂-added Ni-Cr filler alloy: a combined first-principles and experimental study

Contact Info

Product

Resources

About

Study on the use of CuSnTi brazing alloy for induction brazing of diamond grits surface-treated by direct current plasma chemical vapor deposition

Cited by 20 publications

References 8 publications

Formation of TiC via interface reaction between diamond grits and Sn-Ti alloys at relatively low temperatures

Formation of TiC via interface reaction between diamond grits and Sn-Ti alloys at relatively low temperatures

A Review of the Diamond Retention Capacity of Metal Bond Matrices

Interfacial behavior and mechanism of brazed diamond with CeO2-added Ni-Cr filler alloy: a combined first-principles and experimental study

Contact Info

Product

Resources

About

Interfacial behavior and mechanism of brazed diamond with CeO₂-added Ni-Cr filler alloy: a combined first-principles and experimental study