Section 1 Friction and Wear

**3**

**Chapter 1**

**Abstract**

**1. Introduction**

particle geometry [1–4].

DLC coatings [9, 10].

Substrates

Abrasive Wear Performance of

*Armando Irvin Martínez Pérez, Edgar Ernesto Vera Cárdenas,* 

The resistance of dry abrasive wear in Fe2B layer deposited on AISI D2 and 1040 steel substrates, using the powder-pack boriding process, was evaluated. The boriding process was carried out at temperatures of 1220 and 1320 K for a time of 8 h. A Rockwell hardness tester was used to assess the Daimler-Benz adhesion test. The abrasive wear tests were carried out in dry conditions according to the ASTM G65 test standard. The test parameters used were a sand flow of 400 g/min, a nominal rubber wheel constant rotation of 200 rpm, a load of 122 N, and a sliding distance of 716.28 m. The type of abrasive used was steel round grit with a grain size of 260 μm and a hardness of 1100 HV. The total time for each test was 30 min, removing the specimens every 5 min to determine the amount of mass loss using an analytical balance (sensitivity of 0.0001 g). The average value of volume loss and wear rates is reported. Optical microscopy and SEM were carried out in order to identify the wear mechanisms. The wear mechanisms presented in this study were

**Keywords:** dry abrasive wear, Fe2B layer, steel substrates, boriding, wear mechanisms

Abrasive wear occurs when a hard particle slides on a surface, causing loss of material. This type of wear depends on factors such as hardness, roughness, and

Different coatings are used as anti-abrasive wear materials. Some of them are as follows: ceramics coatings, such as, Al2O3/TiO2, SiO2/TiO2/Cr2O3, SiC, B4C, ZrO2, CaO, CrN/AlCrN, CrN/BCN, SiO2, WC, and TiC [5, 6]; polymer coatings [7, 8]; and

On the other hand, some works have been developed using boron coatings as anti-wear material. Boronizing is a thermo-diffusion process in which boron atoms, due to their small diameter and high mobility at elevated temperatures, diffuse into a metal surface and form intermetallic compounds with atoms of base metal [11]. Abrasive wear tests were carried out using boronizing on SAE 1010, 1040, D2, and 304 steels [12]. It was seen that boronizing improved the wear strengths

Fe2B Layers Applied on Steel

*Manuel Vite Torres, José Luis Bernal Ponce,* 

*Karina Alemán Ayala and Marisa Moreno Rios*

two-body abrasive wear, pitting action, and plastic deformation.

### **Chapter 1**
