It 3 Emm Sugu-1.docx

MAILAM ENGINEERING COLLEGE, MAILAM (Approved by AICTE, New Delhi, Affiliated to Anna University Chennai) A TATA Consultancy Services Accredited Institution Department of Mechanical Engineering

Test

IT-3

Sub/Code:

Year / SEM:

2ND / 4th

Date:

Time:

3 HRS

Marks

ME8491/ENGINEERING METALLURGY

100

PART – A

(10X2=20)

CO

Level

Q.no

3

2

1.

How does silicon addition influence the properties of steel?

3

2

2.

What are three primary groups of plain carbon steels?

3

2

3.

What are the effects of adding sic in steels?

3

2

4.

What are the effect of chromium and molybdenum in low alloy steels?

3

1

5.

List the important properties of HSLA?

3

4

6.

What is the difference between malleable cast irons and spheoridal cast iron?

3

1

7.

What are bronze? List some uses of bronze.

3

1

8.

What is meant by precipitation hardening?

3

1

9.

What is the role of boron in steel alloying?

3

2

10. Which type of stainless steel is non magnetic? PART – B

3

2

11.

2

b. Write a short note on compositions, properties and Applications of the following steel. (i) Austenitic stainless steel (7) (ii) HSLA Steel. (8) 12. a.(i) Explain the various types of cast iron. (13)

2 3 2 2 3

(5X13=65)

b.(i) Discuss the Characteristics of copper and also mention its alloys their properties and uses. (13)

2 2

a.(i) Discuss the effects of various alloying elements on the properties of steel.(13)

13.

a.(i) Using the A1-Cu alloy system as example, explain the concept of Precipitation heat treatment. (8) (ii)Explain the steps involved in precipitation hardening treatment (5)

2

b (i) Discuss the Characteristics of aluminium and also mention its alloys

their properties and uses (13) 3

1 2

14.

a.(i) What is bearing metal? (2) (ii) Give its classification, composition, properties and uses of bearing materials (11) b (i) Explain the composition, property and application of Titanium alloy? (13)

15

a.(i)Suggest and discuss suitable material for the single point cutting tool for this purpose. (10) (ii) Differentiate brass from bronze (3)

2 3

2 4 1

b.(i) What are super alloys? (2)

2

(ii) Name non ferrous materials for the following articles. (11) PART – C

3

2

16

2 2

(1X15=15)

a. What is the material choice, type of processing, microstructure and mechanical properties, of any three sub components of a typical lathe machine? (15) b. . Write a short note on compositions, properties and Applications of the following steel. (i) maraging steels (8) (ii) tool steel (7)

CO3: Understanding the Ferrous and Non Ferrous metals.

K1-REMEMBER, K2-UNDERSTAND, K3-APPLY, K4-ANALYSIS, K5-EVALUATE, K6-CREATE

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