Transfer of Cubic Boron Nitride Grinding Wheel Wear Products to the Nickel Alloy Surface

Vladimir A Nosenko,Semen P Kuznesov,Aleksandr V Fetisov,A Glezer,S Roshchupkin

doi:10.1051/matecconf/202032903050

Vladimir A Nosenko, Semen P Kuznesov + Show 3 more

Open Access

https://doi.org/10.1051/matecconf/202032903050

Copy DOI

Abstract

The article summarizes the results of microscopic and x-ray spectral studies of objects embedded in the surface layer of a nickel alloy after grinding with a wheel of cubic boron nitride (CBN) on a ceramic bond. In the introduction, the authors analyzes the results of research on the use of CBN as an abrasive material. Unlike silicon carbide wheels, CBN tools are a more complex and multi-component structure, which has a significant impact on the self-sharpening of the abrasive tool and the transfer of material. The purpose of this article is to detect and identify the wear products of a CBN grinding wheel on the treated surface of a nickel alloy. As a result of studying the morphology of the alloy surface after grinding with CBN wheels, foreign objects embedded in the metal were detected with a scanning two-beam electron microscope. The chemical composition of the objects was studied by x-ray spectral microanalysis. Based on the obtained spectrograms, the objects were divided into three groups, including peaks of x-ray characteristic radiation: boron and nitrogen characteristic of CBN grains; aluminum and oxygen characteristic of corundum; oxygen, silicon, aluminum, and some elements characteristic of a ceramic bond. Tables of the chemical composition of the studied objects are provided. Conclusions. The transfer of CBN grinding whee wear products from to the treated surface is experimentally proved.

Highlights

IntroductionThe choice of these alloys instead of, for example, stainless steels, is justified only when there is a need for a product that works in severe conditions, with a low level of maintenance and requires an increased no-failure service life, which is associated with a relatively high cost
Nickel alloys have excellent properties for use as structural materials
When grinding a nickel alloy, the metal adheres to the grain tops of the abrasive tool working surface, which is confirmed by optical images of the wheel working part (Fig. 1)

Summary

Introduction

The choice of these alloys instead of, for example, stainless steels, is justified only when there is a need for a product that works in severe conditions, with a low level of maintenance and requires an increased no-failure service life, which is associated with a relatively high cost. Parts of this kind are in demand in the most knowledge-intensive branches of mechanical engineering, such as the nuclear, oil, aircraft and engine industries, where nickel alloys are widely used [1]. The authors believe that an increase in temperature causes an increase in the intensity of adhesive interaction, an increase in the plasticity of the material can affect the mutual transfer of materials

Objectives

Methods

Results

Conclusion