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Catalog Description Formerly known as WELD 60 Prerequisite: Completion of WELD 1A, WELD 2A, WELD 3A or WELD 5A with grade of "C" or better Hours: 108 (54 lecture, 54 laboratory) Description: Exploration of the production and properties of ferrous metals used in the welding industry. The chemical and physical properties of metals, crystallization, and theoretical concepts of alloying. Laboratory experiments in metal identification, hardness and destructive testing, heat treating, sample preparation, and microphotography. (CSU) Course Student Learning Outcomes CSLO #1: Apply safety standards for both a learning environment and worksite environment of a Metallography Lab. CSLO #2: Define terms related to this course; cooling rate, cementite, ferrite, martensite, pearlite, phase change, microstructure, spheroidite, tempering and hardening. CSLO #3: Perform lab assignments and report results of study of micro-structure changes present resulting the heating and cooling of metals. CSLO #4: Report results of experiments in the study of steel micro-structure under high magnifications. Effective Term Fall 2025 Course Type Credit - Degree-applicable Contact Hours 108 Outside of Class Hours 108 Total Student Learning Hours 216 Course Objectives Lecture Objectives: 1. Explain safety expectations as applied in a working Metallography Laboratory. 2. Describe the role a Metallography Technician plays in the welding and fabrication industries. 3. Define metallographic, metallurgical, chemical terminology used within the commercial and industrial welding field. 4. Identify and explain the behavior of mechanical, physical and chemical properties of iron, carbon steels, stainless steels. and aluminum alloys. 5. Describe the metal composition identification system of types of steel and aluminum alloys and different industries' numbering system. 6. Create reports based on facts uncovered from assigned lab experiments. Laboratory Objectives: 1. Apply standards of safety, lab procedures working with samples, use of equipment to gather data and create lab reports of the results. 2. Investigate and evaluate the mechanical, physical and chemical properties of materials with a focus on low, medium carbon and alloy steels typically used in welded fabrication. 3. Determine different steel compositions as assigned for lab experiments. 4. Identify and evaluate crystallization, solidification, and solution. 5. Demonstrate and complete an industry standard failure analysis report. 6. Evaluate an iron-phase diagram. 7. Perform a microstructure analysis. 8. Demonstrate heat treating, quenching, annealing and normalization processes. General Education Information Approved College Associate Degree GE Applicability AA/AS - Physical Sciences AS - Physical Science Lab CSU GE Applicability (Recommended-requires CSU approval) Cal-GETC Applicability (Recommended - Requires External Approval) IGETC Applicability (Recommended-requires CSU/UC approval) Articulation Information CSU Transferable Methods of Evaluation Objective Examinations Example: Written examination of chemistry related to element influence in Ferris metal. Problem Solving Examinations Example: Perform and evaluate 3 physical test procedures. Student will be assessed based upon accuracy of performance and evaluation. Reports Example: Perform chemical tests to identify a metal's composition. In a lab report, present findings. Student will be evaluated based upon a rubric developed by the instructor and shared with students. Skill Demonstrations Example: Demonstrate proper procedures to prepare a sample for microscope examination. Repeatable No Methods of Instruction Laboratory Lecture/Discussion Distance Learning Lab: With instructor's demonstration and oversight on material type testing, students will apply various techniques for the material types testing. Lecture: Lecture and interpersonal group discussion on the various applications of test analysis with following presentation of group results. Distance Learning Instructor will use slide show presentation, instructor created video, or lecture presentation on a learning platform to teach about best safety practices in the for personal protective equipment, the weld lab environment, and/or tools & equipment. Students will be given a scenario and expected to list the best safety practices that should be employed and explain why they should be used. Students will submit the assignment via text entry, file upload, video or audio recording. Typical Out of Class Assignments Reading Assignments 1. Read textbook chapter on alloying of metals and be prepared to discuss in class. 2. Carry out research on ductility vs. malleability and prepared a paper with your findings to present to class. Writing, Problem Solving or Performance 1. Complete review questions from the reading assignments on alloying of metals. 2. Demonstrate performance of various analyses, such as tensile pull, hardness testing, and ductility on welds during lab assignment and report. Other (Term projects, research papers, portfolios, etc.) 1. Perform and report on assigned lab experiments. Required Materials Metallurgy Fundamentals Author: Daniel A. Brandt and J. C. Warner Publisher: Goodheart Willcox Co., Inc. Publication Date: 2009 Text Edition: 5th Classic Textbook?: OER Link: OER: Metallurgy Author: Bhadeshia and Honeycombe Publisher: Elsevier Ltd Publication Date: 2017 Text Edition: 4th Classic Textbook?: OER Link: OER: Welding Principles and Practices Author: Bohnart, Edward Publisher: McGraw Hill Publication Date: 2017 Text Edition: 5th Classic Textbook?: OER Link: OER: Other materials and-or supplies required of students that contribute to the cost of the course.