MMET 207 Exam 1 Questions and Answers | Latest Version | 2024/2025 | Rated A+
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Course
MMET 207
Institution
MMET 207
MMET 207 Exam 1 Questions and
Answers | Latest Version | 2024/2025 |
Rated A+
What is the primary purpose of metallography in material science?
Metallography is used to analyze the microstructure of metals, which helps in understanding
their properties and performance under various conditi...
MMET 207 Exam 1 Questions and
Answers | Latest Version | 2024/2025 |
Rated A+
What is the primary purpose of metallography in material science?
✔✔Metallography is used to analyze the microstructure of metals, which helps in understanding
their properties and performance under various conditions.
What effect does strain rate have on the ductility of metals?
✔✔Increasing the strain rate generally decreases the ductility of metals, leading to more brittle
behavior during deformation.
In what applications would you prefer using titanium over steel?
✔✔Titanium is preferred in applications requiring high strength-to-weight ratios, such as
aerospace components, due to its low density and excellent corrosion resistance.
How does the cooling rate affect the microstructure of cast metals?
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, ✔✔A faster cooling rate can result in a finer microstructure, leading to increased strength, while
slower cooling allows for coarser structures that can enhance ductility.
What are the environmental impacts of metal corrosion, and how can they be mitigated?
✔✔Corrosion can lead to structural failures and environmental pollution; mitigation strategies
include using protective coatings, cathodic protection, and selecting corrosion-resistant materials.
How does the addition of zinc improve the properties of steel?
✔✔Adding zinc to steel creates galvanized steel, which provides enhanced corrosion resistance,
making it suitable for outdoor and marine applications.
What is the role of the ASTM in material standards?
✔✔The ASTM (American Society for Testing and Materials) develops and publishes voluntary
consensus technical standards for materials, ensuring quality and safety in their use.
What is the primary distinction between ductile and brittle materials?
✔✔Ductile materials can undergo significant plastic deformation before fracture, while brittle
materials fracture with little to no plastic deformation.
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