2026 MECH 321 LAB 4 Experiment HEAT TREATMENT, HARDNESS AND
IMPACT TESTING OF STEELS (Properties & Failure of Materials) Concordia
University
Experiment 4
Heat Treatment, Hardness And Impact Testing Of Steels
MECH 321 Lab Section MI - X
Group A
Winter 2025
Prof. Sam Eskadarian
Concordia University
Montreal, QC, Canada
, TABLE OF CONTENTS
TABLE OF CONTENTS ............................................................................... 2
LIST OF TABLES AND GRAPHS ..................................................................... 2
OBJECTIVE .......................................................................................... 3
INTRODUCTION ..................................................................................... 3
EQUIPMENT.......................................................................................... 4
PROCEDURE ......................................................................................... 7
RESULTS ............................................................................................. 8
SAMPLE CALCULATIONS ......................................................................... 8
DISCUSSION.......................................................................................... 9
CONCLUSION ...................................................................................... 11
REFERENCES....................................................................................... 12
LIST OF TABLES AND GRAPHS
Figure 1: Lindberg/Blue M Split Hinge Tube Furnace [1]
Figure 2: Rockwell Hardness Tester by Wilson Instruments [1]
Figure 3: Instron SI-1 series Impact Tester [1]
Figure 4: Hardness vs. Tempering Temperature
Figure 5: Impact Energy vs. Tempering Temperature
Figure 6: Fracture Surfaces
Figure 7: Close up fracture surfaces
IMPACT TESTING OF STEELS (Properties & Failure of Materials) Concordia
University
Experiment 4
Heat Treatment, Hardness And Impact Testing Of Steels
MECH 321 Lab Section MI - X
Group A
Winter 2025
Prof. Sam Eskadarian
Concordia University
Montreal, QC, Canada
, TABLE OF CONTENTS
TABLE OF CONTENTS ............................................................................... 2
LIST OF TABLES AND GRAPHS ..................................................................... 2
OBJECTIVE .......................................................................................... 3
INTRODUCTION ..................................................................................... 3
EQUIPMENT.......................................................................................... 4
PROCEDURE ......................................................................................... 7
RESULTS ............................................................................................. 8
SAMPLE CALCULATIONS ......................................................................... 8
DISCUSSION.......................................................................................... 9
CONCLUSION ...................................................................................... 11
REFERENCES....................................................................................... 12
LIST OF TABLES AND GRAPHS
Figure 1: Lindberg/Blue M Split Hinge Tube Furnace [1]
Figure 2: Rockwell Hardness Tester by Wilson Instruments [1]
Figure 3: Instron SI-1 series Impact Tester [1]
Figure 4: Hardness vs. Tempering Temperature
Figure 5: Impact Energy vs. Tempering Temperature
Figure 6: Fracture Surfaces
Figure 7: Close up fracture surfaces
