Download 10-Low Alloy Steel.pdf PDF

Title10-Low Alloy Steel.pdf
Tags Chromium Alloy Annealing (Metallurgy)
File Size2.1 MB
Total Pages32
Document Text Contents
Page 1

Low Alloy Steel

Page 2

Introduction

Page 16

Others (XXXX)

Please read :

►Avner’s Introduction to Physical Metallurgy
►William F. Smith’s Structure & Properties

of Engineering Alloy

Page 17

Low Alloy Steel
Supplements: special low alloy steels

►Special and modern low alloy steels
►Relatively, it is “better” than common low

alloy steel for the same class or application

►More advance production methods
►HSLA steels
►TRIP steels
►Maraging steels

Page 31

Low Alloy Steel
TRIP steels – Characteristics

►Bake hardening – TRIP steels have an excellent
bake-hardening capacity. The increase in the yield
strength in typical paint baking cycle is
approximately 10 ksi (70 MPa).

►Product mass reduction capacity – TRIP steels
have high potential for part downgauging and
weight reduction.

►Fatigue performance – TRIP steels have higher
fatigue strength than equivalent conventional
HSLA steels.

Page 32

Low Alloy Steel
TRIP steels – Characteristics

Ferrite-bainite-austenite

Yes

Very Good

Excellent

Excellent

Good

More difficult than
DUAL-TEN®

Microstructure

Yield Point Elongation

Formability for strength
level

Bake Hardening

Strain Rate Sensitivity

Fatigue

Weldability

Ferrite-martensite

None

Good

Excellent

Good

Good

OK

TRIP SteelTopic AreaDUAL-TEN® Steel

(Dual Phase Steel)

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