Technical practice questions
Materials Engineering Interview Questions
Real Materials Engineering interview questions with answers. Filter by sub-field and difficulty, then drill them in practice mode.
Showing 25 of 25 questions
Beginner
Fundamentals, definitions, expected of any candidate
Intermediate
Applied reasoning, design tradeoffs, calculations
Advanced
Deeper scenario / system-design questions and edge cases (stretch material)
BeginnerMechanical Behavior
Walk me through an engineering stress-strain curve.
stress-strain curveelastic modulusyieldUTS
BeginnerMechanical Behavior
What's the difference between yield strength, tensile strength, and toughness?
yield strengthtensile strengthtoughness
BeginnerFailure Analysis & Corrosion
How do you tell ductile fracture from brittle fracture?
fracturefractographyductilebrittle
BeginnerFundamentals
Compare FCC, BCC, and HCP crystal structures.
crystal structureFCCBCCHCP
IntermediateMechanical Behavior
What is a dislocation and why does it matter?
dislocationsplastic deformationcrystal defects
IntermediateMetals & Heat Treatment
What are the main ways to strengthen a metal?
strengthening mechanismsalloyingcold work
IntermediateMetals & Heat Treatment
What is the Hall-Petch relationship?
Hall-Petchgrain size
IntermediateMetals & Heat Treatment
Walk me through the key points of the iron-carbon phase diagram.
iron-carbon diagramphase diagramssteel
IntermediateMetals & Heat Treatment
What happens when you quench and temper steel?
quenchingtemperingmartensiteheat treatment
BeginnerMetals & Heat Treatment
What's the difference between annealing, normalizing, and quenching?
annealingnormalizingquenchingheat treatment
AdvancedMetals & Heat Treatment
What's the difference between hardness and hardenability?
hardenabilityJominy testalloying
IntermediateMetals & Heat Treatment
How does precipitation hardening work?
precipitation hardeningagingaluminum alloys
IntermediateMechanical Behavior
What is fatigue and what's an S-N curve?
fatigueS-N curveendurance limit
IntermediateMechanical Behavior
What is creep and where does it matter?
creephigh temperaturesuperalloys
IntermediateMechanical Behavior
What is the ductile-to-brittle transition temperature?
DBTTCharpy testimpact toughness
AdvancedFailure Analysis & Corrosion
What is fracture toughness?
fracture toughnessfracture mechanicsstress intensity
BeginnerCharacterization
Compare Rockwell, Brinell, and Vickers hardness tests.
hardness testingRockwellVickersBrinell
IntermediatePolymers & Composites
What is the glass transition temperature?
glass transitionpolymersthermal properties
IntermediatePolymers & Composites
How do you estimate the stiffness of a fiber composite?
compositesrule of mixturesanisotropy
IntermediateCeramics & Electronic Materials
Why are ceramics brittle?
ceramicsbrittlenessWeibull
IntermediateCeramics & Electronic Materials
How does doping change a semiconductor?
semiconductorsdopingband gap
AdvancedCharacterization
Which characterization techniques would you use to identify an unknown material?
characterizationXRDSEMEDSDSC
IntermediateFailure Analysis & Corrosion
What is galvanic corrosion and how do you prevent it?
galvanic corrosiongalvanic seriescathodic protection
BeginnerFailure Analysis & Corrosion
What makes stainless steel stainless?
stainless steelpassivationcorrosion
AdvancedFailure Analysis & Corrosion
How would you approach a failure analysis on a broken part?
failure analysisroot causefractography