The time temperature transformation diagram for a hypoeutectoid steel is given below. Describe the heat treatment procedure to obtain the following phase transformation (a)Tempered martensite to ferrite+pearlite (b) Austenite to ferrite+ pearlite +50% bainite. 2022707 Temperature (°C) 800 700 600 500 400 300 200 A A M (start) M(50%) M(90%) A+ F - B A+P -50% 1600 1400 -1200 -1000 E Temperature (77 800 600 400

The time temperature transformation diagram for a hypoeutectoid steel is given below. Describe the heat treatment procedure to obtain the following phase transformation (a)Tempered martensite to ferrite+pearlite (b) Austenite to ferrite+ pearlite +50% bainite. 2022707 Temperature (°C) 800 700 600 500 400 300 200 A A M (start) M(50%) M(90%) A+ F - B A+P -50% 1600 1400 -1200 -1000 E Temperature (77 800 600 400

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter26: Welding Metallurgy

Section: Chapter Questions

Problem 28R: How do ferrite and cementite work together to form a strong ductile steel?

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