Metallurgy is a domain of materials science and engineering that studies the physical and chemical behaviour of metallic elements, their intermetallic compounds, and their mixtures, which are called alloys.
Metallurgy is also the technology of metals: the way in which science is applied to the production of metals, and the engineering of metal components for usage in products for consumers and manufacturers. The production of metals involves the processing of ores to extract the metal they contain, and the mixture of metals, sometimes with other elements, to produce alloys.
Metallurgy is subdivided into ferrous metallurgy and non-ferrous metallurgy. Ferrous metallurgy involves processes and alloys based on iron while non-ferrous metallurgy involves processes and alloys based on other metals.
Principles of Metallurgy
- Solidification of Metals: Introduction to the science of metallurgy
- Metal Forming: Forging, rolling, extrusion, swaging, and other techniques employed to form metals at elevated temperatures; and other techniques used to form metals at ambient temperatures.
- Mechanical Properties and Their Measurement: Definitions of mechanical properties and explanations of testing procedures; introduction to concepts of standardization and quality control.
- Heat Treatment of Steel: Hardness and hardenability of steel; specific processes and their applications; heat treating procedures, quenching, and hardness measurements.
- Hardening of Steel: Techniques used to harden the case of a metal, including carburizing, nitriding, carbonitriding; etc.
- Strengthening Mechanisms: Techniques used to harden the nonferrous metals, including age hardening, strain hardening and related metallurgical concepts for aluminum, titanium, copper, and other nonferrous metals.
- Nonferrous Metals: Industrial Applications and Properties: Light metals, aluminum, magnesium, and titanium; copper and its alloys; lead, tin, and zinc; precious metals.
- Joining: Techniques of welding, brazing, and soldering, including descriptions of specific applications of each process described.
- Quality Control and Failure Analysis: Procedures for predicting and/or evaluating the performance of metals in service.
Materials selection
Carbon and Low Alloy Steels in Sour Service
- Appreciation of the requirements for sour service, Standards and Specifications.
- Cracking mechanisms and avoidance of damage
- Standards and specifications
- Testing of materials
Martensitic Stainless Steels
- Are the most widely used class of CRA
- Used when steel corrodes too quickly in sweet produced fluids
- Good mechanical properties
- Most grades are difficult to weld, therefore they are not used for pipelines or vessels
Corrosion Resistant Alloys (CRA)
- Categories of CRAs
- Properties
- Corrosion and cracking characteristics
- Limitations, strength…!
- Problems with CRAs
Metallurgy and Welding
- Metallurgical properties of steel
- Stainless steels and aluminum
- Fatigue of welded structures
- Dissimilar metal welding
- Welding quality control
Environmentally-assisted Cracking (EAC):
- Understand the relations between the structure of a material and to the properties of the materials in presence of environment(s):
- Understand the mechanism of corrosion fatigue vs. mechanical fatigue
- Understand the fundamental stress corrosion cracking (SCC) mechanism
- Specific Forms of Corrosion
- Hydrogen-induced Cracking (HIC) in Low Strength Steel
- Materials for Use in Oil & Gas: CO2 (sweet), H2S (sour) & Chloride (Cl-)
WHAT YOU WILL LEARN
- While the subject matter is wide ranging, the learning objectives will be to underlying engineering principles
- Selection of appropriate material and understanding the mechanisms in order to increase the safety and reliability
- Factors that affect selection of the proper material
- Mechanical properties and various testing methods
- How the properties of metals can be altered through heat treatment and environment
- Apply and gain a knowledge on metallurgy and welding technology
- Characterize the metallurgical properties of steel and HT and implement welding quality control
- Introduction to mechanisms of corrosion in H2S (sour) and CO2 (sweet) environment…etc.
Course Features
- Lectures 0
- Quizzes 0
- Duration 50 hours
- Skill level All levels
- Language English
- Students 0
- Assessments Yes
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