Matse - Study guides, Class notes & Summaries

MATSE 259 - Exam 3 Questions With Verified Solutions Simple Diffusion Dependent Transformations No change in number or composition of phases present Diffusion Dependent Transformations Alterations in phase compositions and number of phases present Diffusionless Transformations metastable phase, diffusion is very slow, a new phase Two Types of Phase Transformation Stages Nucleation (small particles) & Growth (increasing the size, parent phase disappears) Two Types of Nucl...

Matse 201 Exam 2 Questions With Verified Answers phase a chemically and structurally homogenous state of matter α single alpha phase; where solid solution between 2 components exist L+ α 2 phase region, mix of liquid phase and alpha phase containing both components ; Degrees of freedom refers to number of externally controlled variables( temp, pressure, system composition) which must be specified to define the state of the system F=C-P+2 where .. F= deg. of freedom C= ...

Matse 201 Exam 3 Questions With Verified Answers 3R above the debye temp, the heat capacity levels off to this value higher the debye temp is higher/lower for ceramics than for metals phonon quantized mode of vibration in a crystal alpha coefficient of thermal expansion is denoted by decreases alpha increases/decreases with increasing bond strength stronger, closer stronger/weaker bonds and farther/closer atomic spacing facilitates heat transfer decrease def...

MATSE 201 MIDTERM EXAM {30 Questions and Answers} Newest Update

MATSE 201 Final Exam Questions With Answers When a material acquires heat, it will gain kinetic energy in the form of quantized vibrations called _____________. A) thermal shock B) thermal conductivity C) phonons D) photons C) phonons The relationship between heat transferred to and absorbed by a substance is given by, Q=m•c•∆T. Which of the following is a major assumption for that relationship? A) No change in dimension over temperature range of ∆T B) No phase change ov...

MATSE 259 Exam 1 With Complete Solutions Hooke's Law σ = Eε σ: engineering stress ε: engineering strain E: modulus of elasticity Elastic Elongation and Strain v = -εx/εz = -εy/εz applied tensile stress, elastic elongation and accompanying strain Tensile Strength (MPa or psi) -Stress at max of stress-strain curve -Max stress that can be sustained by a structure in tension Toughness -Ability of material to absorb energy up to a fracture -Area under stress-st...

MATSE 259 Exam 1 With Complete Solutions Hooke's Law σ = Eε σ: engineering stress ε: engineering strain E: modulus of elasticity Elastic Elongation and Strain v = -εx/εz = -εy/εz applied tensile stress, elastic elongation and accompanying strain Tensile Strength (MPa or psi) -Stress at max of stress-strain curve -Max stress that can be sustained by a structure in tension Toughness -Ability of material to absorb energy up to a fracture -Area under stress-st...

Matse 259 Final Exam Review With 100% Correct Answers Coarse Pearlite high diffusion allows Carbon atoms to diffuse over long distances and form thick lamellae Fine Pearlite low diffusion allows Carbon atoms to diffuse over short distances and form thin lamellae Martensite NOT diffusion driven independent of time Process Annealing used to negate effects of coldwork and to soften and increase ductility recovery and recrystalization can occur Stress Relief component is ...

Matse 201 Exam 1 With Complete Solutions Metals metallic bonding where electrons are delocalized - dense, stiff, strong, ductile - high thermal & electrical conductivity - opaque, reflective Polymers/plastics covalent bonding where electrons are shared - soft, ductile, low strength, low density - thermal & electrical insulatiors - optically translucent or transparent Ceramics ionic bonding where electrons are donated and received - oxides, nitrides, carbides - hard, brittle...

Matse 81 Exam 2 UPDATED Exam Questions and CORRECT Answers According to the course reading, copper is found most readily in this form. - Correct AnswerCopper carbonate According to the course reading, in the Egyptian copper smelting process iron was used to do - Correct Answer- Bind and float away impurities