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Austenitic dendrite formation
Austenite Dendrites Formation
Austenite dendrites form when a material undergoes phase transformation from solid austenite to liquid phase. The phenomenon is similar to crystal growth and dendritic growth in metals and alloys, in which successive crystal growth results in dendritic-shaped feature......
1055 
Sophie
Basic knowledge and terms of metallurgy
Metallurgy Basics and Terminology
Metallurgy is the science of extracting metals from their ores, refining them and preparing them for use. It involves a complex series of processes that involve heating, cooling, and treating with chemicals. Metallurgy is used in almost every area of technology a......
Roll surfacing
Cold rolling mill rolls
Cold rolling mill rolls are a major component of the steel rolling process in the steel manufacturing industry. During the hot rolling process, the steel is heated to over 1500°C and passes through rolling stands where high levels of strain are applied to form the steel......
X-ray diffractometer
X-ray diffraction (XRD) is an advanced analytical technique used to identify both the chemical and crystalline structures of substances. This type of analysis begins in the laboratory where a sample of the material is placed in a device called an X-ray diffractometer. When synchrotron radiation or......
Artificial additional air gap crystallizer
Artificial air gap crystallizer
The artificial air gap crystallizer is a new device designed to induce crystallization in a controlled and uniform manner. It consists of a hollow cylinder with an inner diameter, filled with a liquid medium, usually water. The cylinder is then sealed and heated un......
Research on the Influence of Two Kinds of Quenching Oils on the Heat Treatment Quality of Leaf Springs (Part 1)
Introduction
Heat treatment is an important process for metal spring production. It affects the mechanical properties and fatigue properties of the spring. Heat treatment process includes quenching and tempering. The purpose of quenching and tempering is to improve the strength and toughness of t......
Research on the Influence of Two Kinds of Quenching Oils on the Heat Treatment Quality of Leaf Springs (Part Two)
3. Research methods
3.1 Sample selection
In order to analyze the effect of the two kinds of quenching oils on the quality of spring heat treatment, 15 springs were selected in the factory, and each spring was divided into three samples. Sample 1 was treated with quenching oil A, sample 2 was tre......
Influence of Supply State Properties of Duplex Stainless Steel on Weldability
Effects of Supply State Characteristics of Duplex Stainless Steel on Weldability
Welding is a process of joining two or more materials by fusing them together. It is a complex process, which includes a wide range of heat treatments, metallography and metallurgical capabilities. The weldability of......
Element 109
109.Meitnerium
Meitnerium is an elemental metal belonging to group nine of the periodic table. It is also known as Ununennium, and its symbol is Mt. This silvery-white metal was discovered in the year 1982 by a team of German scientists headed by Peter Armbruster and Gottfried Munzenberg at the I......
Phosphorite strontite
Phosphor-aluminum-strontium composite oxides (PASOs) are important materials used in various industrial processes, such as catalysts, adsorbents, and optical components. PASOs are composed of three main cations, phosphorus, aluminum and strontium, as well as other light cations and anions. PASOs a......
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