Search results for keyword: aggregates
SNA
The concept of Gross National Income (GNI) is widely used by international organizations and NGOs when measuring the economic performance of a nation. GNI is a measure of the total economic activity within a country and takes into account both the production of goods and services and the income of......
03/07/2023 
1069 
Sophie
social welfare function
Social Welfare Function
The Social Welfare Function (SWF) is a mathematical tool used by economists to calculate the optimal outcome of various proposed economic policies. A SWF takes into account the individual preferences and wellbeing of all people in the population. It is used to measure the ......
Mechanical properties of water-piercing steel bars
The Mechanical Properties of Water-filled Steel Reinforced Concrete
Modern construction relies heavily on reinforced concrete for a variety of applications. Steel reinforced concrete is one of the most common forms of concrete reinforcement, supplying both strength and durability to structures ma......
concrete aggregate
Concrete aggregate is an important component of modern construction. It is used everywhere from large commercial structures to small residential homes, and it is a vital material in the construction industry.
Concrete aggregate is composed of different components depending on the type and size of......
Metallographic diagram of 08 steel (nitrocarburizing)
SAE 1070 steel – Nitrogen Carbon Diffusion Gold Phase Diagram
SAE 1070 steel is a low carbon steel that is widely used in the manufacture of a variety of components. It is classified as a nitriding steel, which means it can be used to create a hardened martensitic structure by diffusing nitrogen......
Metallographic diagram of granular bainite 12Cr2Ni4A
Introduction
Grain-oriented ferritic alloys, also known as Grain Boundary Enhancement Alloys or GBEA, have been around for decades, but until recently their importance has been largely overlooked. These alloys are known for their high strength and their ability to absorb impact, making them ideal......
Non-metallic inclusions in steel
Nonmetallic Inclusions in Steel
Steel is a commonly used material in a wide variety of applications in many modern industries. It has a high strength to weight ratio and is easy to form and manipulate into many shapes, making it an ideal material for a variety of applications. Steel is usually pr......
Morphology of (Mn, Fe)S single crystals on bubble walls in ZG25 cast steel
Morphology of Single Crystal (Mn,Fe)S in ZG25 Cast Steel Gas Bubble Wall
Abstract
Morphology of single crystal (Mn,Fe)S in ZG25 cast steel gas bubble wall was studied. Through optical microscope and scanning electron microscope, the shape of the single crystal (Mn,Fe)S in the gas bubble wall was......
Refractory Phase Diagram
Refractory Materials
Refractory materials are materials that are designed to withstand high temperatures, typically over 1500 °C, and often have a service temperature higher than 2000 °C. Refractory materials are heterogeneous materials composed of oxides or carbides of metals in combination wit......
Metallographic diagram of 30CrMnSi (quenched and tempered)
Introduction
In this article, we will be investigating the metallography of 30CrMnSi steel, an alloy commonly used for tempering. Metallography is used to detect possible defects and other issues that may arise after the thermal processing of the material. By studying the microstructure of the ma......
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