Analysis of the static and dynamic properties of wear-resistant Hardox 600 steel in the context of its application in working elements

Abstract

The article discusses the static and dynamic properties of high-strength, boron-containing Hardox 600 steel that is resistant to abrasive wear, both in its delivery state and after normalization. Since the available published material in the literature does not have any real mechanical indicators of the abovementioned steel, a static tension test was carried out at an ambient temperature. The steel’s tensile strength, yield strength, Young’s modulus, elongation and reduction of area were determined from the test. The Charpy impact test at temperatures of −40 °C, −20 °C, 0 °C, and +20 °C and fractographic analysis were performed to determine the transition temperature of ductility to brittleness. In dynamic load conditions, the assigned values of impact energy do not always truly determine the material behavior. Thus, the aim of the fractography was to provide precision when determining the behavior. A significant difference in the impact energy of the tested steel with respect to its heat treatment and ductile-brittle transition temperature was observed and determined based on the impact test result, as well as the nature of the fracture. On the basis of the determined structural and strength characteristics, an analysis of the possibility of application of Hardox 600 steel on selected elements of working machines was performed.

The influence of plasma nitriding hardness treatment on the dynamic compressive behavior of the Hardox 400 at a wide temperature range

“…To determine the hardness of Hardox 400 substrates, an instrumented indentation hardness testing was conducted on the substrate surface and through the thickness using Anton Paar NHT 3 nanoindentation tester with a three-sided pyramid Berkovich diamond indenter. A load range of 10–150 mN was set at progressive rates where approximately eight indentations per test were performed for statistical averaging.…”

“…Due to their excellent mechanical properties combining high hardness, wear and corrosion resistance, good formability, and weldability, Hardox steels are considered very attractive materials that have found widespread applications as working elements for many engineering applications, for example in machinery, crushing mills, blades, gear, sprocket wheels, and front casting bulldozers. [1][2][3][4] These steels find also applications in defense as protective materials against ballistic threats. [5][6][7] Despite its excellent tribological and mechanical properties, the service lifetimes of Hardox 400 steel in some mechanical and metallurgical applications is insufficient.…”

Use of the Ball-Cratering Method to Assess the Wear Resistance of a Welded Joint of XAR400 Steel

“…Figure 1 presents a schematic cross section of the obtained multi-run weld. Prior to the welding, the edges were preheated to 50 • C. The weld started with the root stitch (1). Then it was cut from the side of the ridge and the stitch (1a) was laid.…”

“…Low-alloy martensitic steels are the preferred materials for machining parts exposed to abrasive wear [ 1 , 2 ], utilizing their declared workability and weldability together with satisfactory hardness [ 3 , 4 , 5 , 6 ]. Supported by Archard’s equation relating wear resistance with hardness, this view has become very popular in the community [ 7 , 8 , 9 , 10 ].…”

Microstructure and Hardness of Cold Forged 42CrMo4 Steel Hollow Component with the Outer Flange

“…For decades carbon and low alloy steels have been a crucial structural material due to their excellent combination of ductility and strength resulting from a heat treatment [1,2], specialized alloying additives [3,4] or specialized thermomechanical influencing on steel microstructure refinement [5,6]. One of the most popular steel utilized for forged components is low-alloy grade 42CrMo4 (AISI 4140).…”