Mechanical Properties of Boronized AISI 316, AISI 1040, AISI 1045 and AISI 4140 Steels

Abstract

In this study, some mechanical properties of borided and unborided four steels were investigated. Boronizing of steels was performed by powder pack method at 1210 K for 4 h. The hardness of borides, boride layer thickness and room temperature tensile properties were measured and it was observed that hardness and tensile properties strongly depend on chemical composition of steels. In addition, the effect of a notch on impact behavior was examined by conducting the Charpy tests on borided and unborided steels. The greatest notch toughness was found for a steel AISI 316 with a microstructure consisting of different C, Ni and Cr chemical composition compared to AISI 1040, 1045 and 4140 steels.

Investigation of structural, tribological and corrosion properties of electroless Ni–B coating deposited on 316L stainless steel

“…cold working; . a suitable surface or subsurface modification treatment such as boronising, 1 carburising, nitriding, carbonitriding and laser hardening; and 2 . the addition of a new layer or involving an internal build-up, such as electroless coating, electrochemical plating, physical vapour deposition, chemical vapour deposition and thermal spray.…”

Non-smooth modeling in surface hardening

“…In this study, the data used for modeling is from the study by Calik et al [7]. The detailed information about how to obtain the data can be found in this article.…”

“…On the other hand, determining to what extent the amounts of elements in alloy affect the microhardness is one of the important questions. It has been shown in [7] that in the boronizing process different steels give different reactions and this difference arises from the amount of alloying elements. Although determining the microhardness of the alloy depending on the amounts of elements in the alloy is important in material design, there are hardly any works on this subject.…”

“…In [7], the thermochemical surface treatments and also tensile properties of four steels were discussed. Also, the influence of V-notch on the impact properties of four different borided and unborided steels were obtained (AISI 316(0.04wt.%C), 1040(0.35wt.%C), 4140(0.39wt.% C), 1045(0.40wt.% C)).…”

Depth Corrosion Characteristics of Borided Layer Produced on AISI 321 Stainless Steel

“…The boriding process is an effective technique to improve some surface properties, such as: corrosion, hardness, fatigue strength, wear resistance, etc. [7][8][9]. The improvement of the mechanical properties of the steel surface is a result of the formation of boride inclusions in the outer layers.…”