Wear

wear1

10

This type of wear occurs when two solid surfaces slide against each other.

Adhesive wear

20

Which type of wear is caused by hard particles or protuberances forcibly sliding?

Adhesive

300

Evaluate the effectiveness of surface coatings in reducing fretting wear.

They reduce metal-to-metal contact and micro-motion, thereby limiting fretting wear

wear2

10

Name the type of wear that results from repeated rolling or cyclic loading.

Fatigue

20

Identify the wear mechanism caused by chemical or electrochemical reaction.

corrosive

300

Design a tribo-test to differentiate between erosive and abrasive wear mechanisms.

Use impinging particle test (ASTM G76) for erosion and pin-on-disk for abrasion

wear3

10

This wear type is prominent in hydraulic systems due to suspended particles.

Erosive

20

In gear systems, which wear type arises due to surface fatigue and rolling?

Pitting

wear4

10

Which type of wear can be significantly reduced using boundary lubrication?

Adhesive

20

Distinguish between two-body and three-body abrasive wear using an example.

Two-body involves fixed abrasives (e.g., grinding); three-body involves loose particles (e.g., sand between surfaces)