National Institute of Technology Rourkela

राष्ट्रीय प्रौद्योगिकी संस्थान राउरकेला

ଜାତୀୟ ପ୍ରଯୁକ୍ତି ପ୍ରତିଷ୍ଠାନ ରାଉରକେଲା

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Syllabus

Course Details

Subject {L-T-P / C} : MM3122 : Heat Treatment Laboratory { 0-0-2 / 1}

Subject Nature : Practical

Coordinator : Priyanka Saini

Syllabus

Module 1 :

Introduction to Heat Treatment Laboratory: Safety instructions, Muffle furnace, salt bath furnace, quenching tanks, metallurgical microscope, hardness tester

Module 2 :

Annealing of Carbon Steels: Annealing of low, medium, and high carbon steels, Metallography and hardness testing, Microstructural evolution with carbon content

Module 3 :

Normalizing of Steels: Normalizing of low, medium and high carbon steels, Metallography and hardness testing

Module 4 :

Quenching of Steels: water quenching of medium and high carbon steels, Martensite formation and hardness analysis, Crack sensitivity and internal stresses

Module 5 :

Tempering of Quenched Steels: Tempering at different temperatures, Hardness reduction, Tempered martensite structure

Module 6 :

Cold Work and Recovery in Pure Copper: Cold rolling of pure copper, Metallography and hardness testing, Discussion on recovery and recrystallization

Module 7 :

Carburization of Low Carbon Steel: Pack carburizing process, Case depth and surface hardening, Microstructure of carburized and core regions

Course Objective

1 .

To familiarize students with the fundamental principles and procedures of heat treatment processes.

2 .

To develop the ability to analyze microstructure and hardness variations due to different heat treatments.

Course Outcome

1 .

Identify the different heat treatment processes and demonstrate safe handling of lab equipment such as furnaces, quenching media, and hardness testers.

2 .

Analyze the microstructure and hardness of low-, medium-, and high-carbon steels subjected to annealing and normalizing, and correlate with their carbon content.

3 .

Evaluate the effect of quenching on the hardness and microstructure of medium- and high-carbon steels.

4 .

Interpret the microstructural changes and property improvements due to tempering of quenched steels.

5 .

Examine the influence of cold working and annealing on pure copper.

6 .

Assess surface hardening achieved through carburization in low-carbon steels.

Essential Reading

1 .

Vijendra Singh, Physical Metallurgy, Standard publisher

Supplementary Reading

1 .

T.V. Rajan, Heat treatment: principles and techniques, Standard publisher

Journal and Conferences

1 .

Heat treatment and surface engineering