Effect of Boronizing on the Oxidation Resistance of 316L Stainless Steel

Abstract

The effect of boronizing treatment on oxidation at high temperature on 316L stainless steel was studied at 850, 900, 950, and 1000• C in air, for holding times between 0.25 and 24 h. The oxidation resistance of unboronized and boronized specimens was studied isothermally by thermogravimetric analyzer. The oxidation rate constant represented as a parabolic rate constant Kp was evaluated. Optical microscopy, X-ray diffraction, and the scanning electron microscopy were used for surface characterizations. The experimental results show that boronized coating increases the resistance of stainless steel 316l about twice and prevents oxygen from penetrating into the stainless steel substrate at the temperatures between 850 and 1000• C.

Surface Growth of Boron Nitride Nanotubes through Boron Source Design

“…To solve the challenges caused by the gaseous B reactants and dispersed products, the "Boronization" technique is taken into account. As is known in the field of materials science and engineering, B can diffuse into the surface of a metal to create a B-rich compound layer, commonly known as the boronized layer, which is primarily used to augment the material's wear resistance, [33][34] high-temperature oxidation resistance, [35][36][37] and radiation shielding. [38] The boronized layer may have the potential to serve as an efficient B source for the confined synthesis of BNNTs.…”

Microstructure and selected properties of Monel 400 alloy after laser heat treatment and laser boriding using diode laser

“…In this process, boron atoms diffuse into the substrate to form metallic borides of high hardness [5,6]. Depending on the substrate material, boriding is also carried out to increase the corrosion resistance [7,8]. Current research focuses on boriding of iron alloys [5][6][7][8][9] and, in addition, titanium and its alloys [10], niobium, chromium, tungsten [11], and nickel alloys [12][13][14][15].…”

“…Depending on the substrate material, boriding is also carried out to increase the corrosion resistance [7,8]. Current research focuses on boriding of iron alloys [5][6][7][8][9] and, in addition, titanium and its alloys [10], niobium, chromium, tungsten [11], and nickel alloys [12][13][14][15]. Boriding of nickel alloys leads to obtaining microstructure consisting of nickel boride mixture with borides of other metals, depending on the type of an alloy, e.g., during boron laser alloying of Inconel or Nimonic alloys, mixtures of nickel and chromium borides are formed.…”