Study of the Structure and Hardness of Alloys of the Sn – Cu – Co System Used as Diamond Abrasive Tool Binders

Sokolov, E. G.; Artem'ev, V. P.; Воронова, М. И.

doi:10.1007/s11041-017-0150-9

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…The most frequently studied lead-free solder alloys are binary and ternary Sn-based solder alloy compositions. Ag (Shalaby et al, 2018;Gumaan, 2020), Cu (Shalaby et al, 2017;Sokolov et al, 2017), Zn (Ding et al, 2018;Ramos et al, 2020) and Bi are some of the common alloying elements used in such compositions.…”

Section: Introductionmentioning

confidence: 99%

Effects of alloying element on mechanical properties of Sn-Bi solder alloys: a review

Kamaruzzaman

Goh

2022

SSMT

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Purpose This paper aims to review recent reports on mechanical properties of Sn-Bi and Sn-Bi-X solders (where X is an additional alloying element), in terms of the tensile properties, hardness and shear strength. Then, the effects of alloying in Sn-Bi solder are compared in terms of the discussed mechanical properties. The fracture morphologies of tensile shear tested solders are also reviewed to correlate the microstructural changes with mechanical properties of Sn-Bi-X solder alloys. Design/methodology/approach A brief introduction on Sn-Bi solder and reasons to enhance the mechanical properties of Sn-Bi solder. The latest reports on Sn-Bi and Sn-Bi-X solders are combined in the form of tables and figures for each section. The presented data are discussed by comparing the testing method, technical setup, specimen dimension and alloying element weight percentage, which affect the mechanical properties of Sn-Bi solder. Findings The addition of alloying elements could enhance the tensile properties, hardness and/or shear strength of Sn-Bi solder for low-temperature solder application. Different weight percentage alloying elements affect differently on Sn-Bi solder mechanical properties. Originality/value This paper provides a compilation of latest report on tensile properties, hardness, shear strength and deformation of Sn-Bi and Sn-Bi-X solders and the latest trends and in-depth understanding of the effect of alloying elements in Sn-Bi solder mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Effects of alloying element on mechanical properties of Sn-Bi solder alloys: a review

Kamaruzzaman

Goh

2022

SSMT

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“…To help counter this, special compositions of Sn-Cu-Co powder materials have been developed. Their sintering is accompanied by a large quantity of the liquid phase forming [10][11][12]. The liquid phase facilitates regrouping of the solid phase particles, which helps alleviate shrinkage stresses.…”

Section: Introductionmentioning

confidence: 99%

Structure Formation of Diamond-Containing Coatings during Sintering of Specially-Shaped Grinding Wheels

2022

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In this work, the structure formation of powder diamond-containing coatings with Sn-Cu-Co binders during sintering of specially-shaped grinding wheels has been studied. The kinetics of structure formation was studied using diamond-free metallic binders and diamond-containing samples. Powder components of the coatings were mixed with an organic plasticizer and applied on steel workpieces by rolling. Sintering was performed in vacuum at 700–820 °C. The microstructure, phase composition, and distribution of elements in metallic binders and interface layers between the binders and steel base were studied. The morphology of the surface and structure of fractures of the diamond-containing samples have been examined. Stages of structure formation of the coatings during heating and sintering have been found. At 700–780 °C, diffusion of tin into copper particles plays the key role in the structure formation of the coatings. Dissolution-reprecipitation of cobalt at 780–820 °C has a significant effect on formation of the coating structure and interface layers between the coating and steel base.

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“…With respect to the coating of grinding wheels, many technological solutions adopted by the industry stem from experience cumulated in the use of Diamond paste or Diamond 2 of 20 based coatings in machinery tools for grinding [9], lapping [10], and polishing operations [11,12]. The literature indicates that there are many different methods available to cover a substrate with a hard-protective layer, [13] provide a useful review in which the main coating techniques are listed and compared to one another, with the identification of the main advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

New Abrasive Coatings: Abraded Volume Measurements in Ceramic Ball Production

Filos

Sesana

Biase³

et al. 2021

JMMP

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Technological progress in hybrid bearings developed high wear and abrasion resistant materials for rolling elements. The manufacturing process of bearing balls presents new challenges, as nowadays, it requires time-consuming and costly processes. In this frame, the bearing manufacturing industry is demanding improvements in materials, geometry, and processes. This work aims to investigate new abrasive coatings for grinding wheels for Si3N4 ball manufacturing. Tribological pin on disk tests are performed on samples of grinding materials (disk) versus a Si3N4 ball (pin). Two samples of specimens coated with an electrodeposited diamond and diamond-reinforced metal matrix composite are examined to measure the abrasion rate and the wear resistance of Silicon Nitride Si3N4 balls, considering the influence of sliding speed and the effect of coating deposition on diamond particle density and granulometry. The measurements estimated the specific wear coefficient k, the height wear surface h, and the wear rate u of the Si3N4 balls. The results pointed out that by increasing the sliding speed, the abraded volume increases for both the coatings. The parameters affecting the abrasion effectiveness of both the coatings are the surface roughness, the abrasive particle dimension, and the sliding speed.

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Study of the Structure and Hardness of Alloys of the Sn – Cu – Co System Used as Diamond Abrasive Tool Binders

Cited by 4 publications

References 5 publications

Effects of alloying element on mechanical properties of Sn-Bi solder alloys: a review

Effects of alloying element on mechanical properties of Sn-Bi solder alloys: a review

Structure Formation of Diamond-Containing Coatings during Sintering of Specially-Shaped Grinding Wheels

New Abrasive Coatings: Abraded Volume Measurements in Ceramic Ball Production

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