JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Overview

Course objectives:

• 1. Low carbon, Medium carbon and High carbon steels with respect to structure property correlations and strengthening mechanisms with alloy additions
• 2. Ultra-high strength steels, Stainless steels and Tool steels with respect to heat treatment, properties and applications.

Course Outcomes:

• 1. Ability to understand different types of alloys used in alloy steels.
• 2. Ability to solve different metallurgical problems in alloy steels.
• 3. It has a lot of scope in R&D and in automobile engineering.

UNIT - I

Low-carbon Mild steels: Introduction; cold forming steels, High strength packing steels; HSLA steels; Low-carbon Ferrite pearlite steels – structure property relation-ships, strengthening mechanisms, Formability of HSLA steels.

UNIT - II

Medium- High carbon ferrite-pearlite steels – structure property relationships, Bainitic steels; Low- Carbon bainitic steels-requirements, development and choice of alloying elements, Mechanical properties, microstructure and impact properties; High-Carbon bainitic steels.

UNIT - III

Ultra-high strength steels: Introduction, steels tempered at low temperatures, secondary hardening, thermo- mechanical treatments, rapid austenitizing treatments, structure-property relationships in tempered martensite, cold-drawn pearlite steels, maraging steels.

UNIT - IV

Stainless steels: Classification, Composition, Microstructures, Heat treatment an application.

UNIT - V

Tool steels and Heat resistant steels: Classification, Composition, Micro structure an Heat treatment and application.

TEXT BOOKS:

• 1. Physical Metallurgy and the Design of steels: F. B. Pickering, Applied Science publisher, London, 1978.
• 2. The physical Metallurgy of steels: W. C. Leslie by Hempisphere Publishers Corporation, 1981.

REFERENCE BOOKS:

• 1. Alloys Steels – Wilson.
• 2. Heat Treatment of steels – Rajan & Sharma