Course title
機械材料工学Ⅰ   [Engineering Materials I]
Course category	technology speciality courses,ets.	Requirement		Credit	2
Department		Year	2～4	Semester	Fall
Course type	Fall	Course code	022525
Instructor(s)
高橋 徹   [TAKAHASHI Tohru]
Facility affiliation	Faculty of Engineering	Office	Koganei, bldg#6 room304	Email address

Course description

Metals and alloys are essential in mechanical systems and they are used mainly as structural materials. Materials behavior and performance must be properly understood and controlled by some constitutive laws with reference to practical service conditions. Fundamental mechanisms controlling the mechanical properties will be highlighted by materials characterization concerning the microstructure and lattice defects. Final objective of this course will be the understanding of the atomic mechanisms in microstructural evolution during heat treatments of steels.

Expected Learning

1) capability of expaining the general properties of metallic materials like metallic bond and free electrons, crystal structure, dislocations and plasticity, eletric conductivity, thermal conductivity, color and reflection od visible light 2) capability of characterizing the microstructure of metallic materials including crystal structure, phase constitution, grain size and grain morophology, and textures. 3) capability of explaining plasticity and strengthening mechanisms with dislocation models 4) capability of explaining diffusion mechanism and its related phenomena like recovery, recrystallization, precipitation, and sintering 5) capability of explaining testing methods of materials strengths like hardness, tensile/compressive, shock loading, creep, fatigue tests 6) capability of explaining microsrtuctural constitution with adequate reference to phase diagrams, phase rules, lever rule that are governed by thermodinamic aspect of phases 7) capability of displaying typical phase diagrams of binary alloys with reference to invariant system reactions like eutectic/eutectoid and peritectic/peritectoid reactions 8) capability of typifying practical engineering alloys such as bronze, brass, aluminum alloys, titanium alloys, and steels with relevance to their industrial standards 9) capability of explaining the process of thermal treatment in carbon steels with reference to phase stability of ferrite/austenite phases and martensitic transformation

Course schedule

Topical themes of each class will be as follows; (1) stiffness, yield strength and toughness of structural materials (2) from materials property to practical performance (3) new functional materials and materials innovation (4) basic concepts of Ashby's materials property charts and materials optimization (5) chemical bonds between/among atoms and molecules (6) pairwise potentials and ideal strength (7) crystallographic structure of metals and alloys (8) distorted structure around lattice defects and defect behavior (9) mechanisms and kinetics of atomic diffusion,recovery, recrystallization, and precipitation (10) thermodynamics in phase constitution, equilibrium phase diagrams, and invariant system reactions (11) phase rule and lever rule (12) microstructural evolution during heat treatments (13) annealing, normalizing, quenching, and tempering of carbon steels (14) engineering alloys and industrial standards (15) overview of metals and alloys

Prerequisites

Required Text(s) and Materials

References

Assessment/Grading

Grades will be evaluated basically based upon the score of the final examination. Attendance to each class will be checked with a questionnaire sheet, but the attendance will not be included in the grade evaluation.

Message from instructor(s)

Course keywords

metals, alloys, yield strength, microstructure, dislocations, plasticity, heat treatment, thermodynamics, phase equilibria, constitution

Office hours

Remarks 1

Remarks 2

Related URL

Lecture Language

Japanese

Language Subject

English

Last update

3/22/2017 9:45:26 AM