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SRI SHANMUGHA COLLEGE OF ENGINEERING AND TECHNOLOGY

Pullipalayam, Morur (Po), Sankari (Tk), Salem (Dt).DEPARTMENT OF MECHANICAL ENGINEERING

INTERNAL TEST IV

Sem/Year: IV/II Date:19.03.2013

Subject : Engineering Materials and Metallurgy Time: 8.45 AM to 9.40 AMMax Marks: 25

PART-A (Answer all) 5x2=10

1. What is meant by precipitation hardening?2. What is duralumin? Give its composition and applications.

3. What are maraging steels? Give its composition.4. What are HSLA steels? Give its composition.5. What are alloy steels? How are alloy steels classified?

PART-B (Answer all) 1x15=15

6. Compare grey and malleable cast irons with respect to (i) composition and heat treatment (ii)microstructure and (iii) mechanical characteristics. (15)

OR

7. (a) What are the necessary metallurgical characteristics required in a good bearing metal?(b) Compare and contrast lead-base, tinbase, copper base and aluminium base bearing alloys. (15)

SRI SHANMUGHA COLLEGE OF ENGINEERING AND TECHNOLOGY

Pullipalayam, Morur (Po), Sankari (Tk), Salem (Dt).DEPARTMENT OF MECHANICAL ENGINEERINGINTERNAL TEST IV

Sem/Year: IV/II Date:19.03.2013

Subject : Engineering Materials and Metallurgy Time: 8.45 AM to 9.40 AM

Max Marks: 25

PART-A (Answer all) 5x2=101. What is meant by precipitation hardening?2. What is duralumin? Give its composition and applications.3. What are maraging steels? Give its composition.4. What are HSLA steels? Give its composition.5. What are alloy steels? How are alloy steels classified?

PART-B (Answer all) 1x15=15

6. Compare grey and malleable cast irons with respect to (i) composition and heat treatment (ii)microstructure and (iii) mechanical characteristics. (15)

OR

7. (a) What are the necessary metallurgical characteristics required in a good bearing metal?(c) Compare and contrast lead-base, tinbase, copper base and aluminium base bearing alloys. (15)

SRI SHANMUGHA COLLEGE OF ENGINEERING AND TECHNOLOGY

Pullipalayam, Morur (Po), Sankari (Tk), Salem (Dt).DEPARTMENT OF MECHANICAL ENGINEERING

INTERNAL TEST IV

Sem/Year: IV/II Date:19.03.2013

Subject : Engineering Materials and Metallurgy Time: 8.45 AM to 9.40 AMMax Marks: 25

PART-A (Answer all) 5x2=10

1. What is meant by precipitation hardening?2. What is duralumin? Give its composition and applications.3. What are maraging steels? Give its composition.4. What are HSLA steels? Give its composition.

5. What are alloy steels? How are alloy steels classified?

PART-B (Answer all) 1x15=15

6. Compare grey and malleable cast irons with respect to (i) composition and heat treatment (ii)microstructure and (iii) mechanical characteristics. (15)

OR

7. (a) What are the necessary metallurgical characteristics required in a good bearing metal?

(d)Compare and contrast lead-base, tinbase, copper base and aluminium base bearing alloys. (15)