Metallurgy Flashcards
Metallurgy is both an art and a science that involves _________________________. It explores the chemical, physical, and atomic characteristics of metals, as well as the principles governing the formation of alloys.
extracting metals from their ores and altering them for practical applications
What are the key principles of metallurgy?
- Mineral Processing
- Extraction of Metals
- Refining & purification
- Alloying
- Heat Treatment
What is the process in Mineral Processing?
Crushing,
grinding,
and separating
valuable minerals from waste
What happens in the extraction of metals?
Smelting,
roasting,
leaching,
and electrolysis
to extract pure metals
What happens in the refining & purification process?
processes like electrorefining, zone refining, and distillation to enhance metal purity.
Describe the alloying process.
Combining metals to improve properties.
Explain the heat treatment process.
Annealing, quenching, and tempering to modify mechanical properties.
Give 5 examples of metal and their ore
Aluminum ore: Bauxite
Iron ore: Hematite, Magnetite, Iron pyrites
Copper ore: Chalcocite
Zinc ore: Sphalerite
Antimony ore: Stibnite
Enumerate the PHYSICAL PROPERTIES of a metal
- Luster
- High Density
- High Melting Point
- High Boiling Point
- Good Electrical Conductivity
- Malleability
- Ductility
Enumerate the MECHANICAL PROPERTIES of a metal
- Hardness
- Toughness
- Tensile Strength
Enumerate the CHEMICAL PROPERTIES of a metal
- Reactivity with Oxygen
- Corrosion Resistance
- Alloying Capability
- Resistance to Acids and Bases
What are the key steps in Process of Metallurgy
- Mineral Processing
- Extraction of Metal
- Refining
- Alloying
- Surface Treatment
A branch of metallurgy that studies the structure and properties
of metals.
Physical Metallurgy
A branch of metallurgy that focuses on the mechanical behavior of metals.
Mechanical Metallurgy
Define LEACHING
Leaching is a process where metals are extracted from ores or other materials by dissolving them in a liquid (leaching agent) to separate the valuable metals from the solid matrix, forming a soluble salt while the impurities remain insoluble.
______________ is the scientific examination and study of the properties, composition, and structure of metals and alloys.
Metallurgical analysis
Why are metals being analyzed in metallurgy?
- Evaluate metals at macroscopic and microscopic levels.
- Provide information that ensures the quality, reliability, and performance of metal products.
- Allows manufacturers to better determine the suitability of different metals for various applications operating under different conditions
METHODS in Analysis in Metallurgy
- Chemical Analysis
- Microscopic Analysis
- Microstructural Analysis
- Thermal Analysis
What methods are under CHEMICAL ANALYSIS?
SPECTROSCOPY
the study of the absorption and emission of light and other radiation by matter.
Atomic absorption spectroscopy (AAS) &
Inductively Coupled Plasma Optical Emission spectroscopy (ICP-OES)
What is UV-Vis used in Metallurgy industry?
To analyze water samples & monitor potential pollutants, particularly heavy metals.
What is X-ray Fluorescence (XRF) used in Metallurgy industry?
Uses X-ray to excite atoms in the sample, causing them to emit fluorescent X-rays that are characteristic of specific elements.
What are the wet chemical analysis involved in metallurgy?
Titration, gravimetric analysis, and colorimetry to identify and measure the concentrations of desired metals within the dissolved sample.
Chemical analysis is often used by metal manufacturers for the following reasons:
- ensuring alloy composition,
- quality control,
- compliance with standards
- Trace element analysis
Name a mining company
Carmen Copper Corporation
Toledo, Cebu
