High-Chromium Cast Irons (Ni-Hard) These are essentially white cast irons alloyed with 12% to 18% chromium and are popularly known as Ni-hard. Chromium imparts abrasion resistance to oxidation. High-chromium cast irons are resistant to oxidizing acids,
Heat Treatment Featuring the Key-Parameters of High Chromium White Cast ...
Sep 30, 2023 · HCWCI is mostly applied as-cast, but it can also be used as a coating material. The carbides in HCWCI microstructure, whose composition depends on alloying and heat treatment regime, give this special feature to white cast irons.
Molybdenum alloying in cast iron and steel - ResearchGate
Dec 10, 2019 · Upgrading of properties in cast iron and steel is mainly achieved by alloying and in fewer cases by heat treatment. Molybdenum is an important alloying element in that respect, increasing...
Two series of hypoeutectic high chromium cast iron specimens containing 16mass% Cr and 26mass% Cr with and without Mo were prepared to study the variation of hardness and volume fraction of retained austenite (V ) during repeated tempering.
Effects of Silicon in High-Cr White Cast Irons - Springer
Apr 5, 2024 · High-chromium white cast irons (HCWI) have excellent abrasion resistance and are used effectively in brick molds, coal-grinding mills, shot-blasting equipment, slurry pumps, and components for quarrying, hard-rock mining, and milling.
Molybdenum grade cast irons - IMOA
Molybdenum increases the strength and hardness of cast irons by depressing the pearlite transformation temperature.
Heat Treatment in High Chromium White Cast Iron Ti Alloy
Apr 29, 2014 · The influence of heat treatment on microstructure and mechanical properties of high chromium white cast iron alloyed with titanium was investigated. The austenitizing temperatures of 980°C and 1150...
Alloy Cast Iron - an overview | ScienceDirect Topics
Chromium forms complex iron–chromium carbides to increase strength, hardness, depth of chill, and resistance to wear and heat. Copper breaks up massive cementite and strengthens the matrix. Molybdenum improves mechanical properties such as fatigue strength, tensile strength, heat resistance, and hardness.
Effects of Mo additions on the solidification of high chromium cast iron
Nov 29, 2016 · Molybdenum decreases both the austenite primary solidification temperature and the starting temperature for the univariant eutectic L → γ + M 7 C 3, but the overall effect results in increased solidification intervals both in the austenite field and in the eutectic field. Keywords: white cast iron. solidification. molybdenum.
Cast Irons | Properties and Selection: Irons, Steels, and High ...
In terms of commercial status, cast irons can be classified as common cast irons and special cast irons. Special cast irons differ from the common cast irons mainly in the higher content of alloying elements. Alloying elements can be added in common …