Hardness Testing free essay sample

Designing Materials 1 Title: Objective: Hardness and Impact Tests of Steels To comprehend the mechanical properties of a metal (steel) especially the connection among hardness and effect Equipments: Rockwell Hardness analyzer and Chirpy Impact analyzer Samples: 1 . Check plate around 0. 9%C As provided (toughened): AS Water extinguished: WAG Oil extinguished: CO Water extinguished + tempered: WAG + T Oil extinguished + tempered: CO + T 2. Key steel around 0. 4%C As provided (strengthened): AS Water extinguished: WAG Procedures: Tests have been heat rewarded utilizing the accompanying conditions: Systematizing at about COCO for 30 minutes, trailed by water extinguish or oil extinguish. A few examples are then tempered at COCO for 1. Ok and permitted to cool in still air. The examples are ground/cleaned to evacuate the scales/oxide before hardness and effect tests. Results and Observation: Compare the hardness results with the effect esteems. Report (most extreme 4 pages): Background Theory Procedures Results Discussion (see next page) Conclusion Make significant remarks about the trial and the information guaranteeing that you answer the accompanying in your remarks: 1. We will compose a custom paper test on Hardness Testing or on the other hand any comparable subject explicitly for you Don't WasteYour Time Recruit WRITER Just 13.90/page The connection between heat treatment and strength and hardness I. E. Quickly clarify why the diverse warmth medicines give distinctive durability and hardness esteems. What do you believe is the distinction among hardness and durability? Clarify the general connection among hardness and strength. 2. Relate the watched break surfaces of the examples to the Chirpy Impact results and as far as fragile or flexible cracks. Report due: Friday, 6 Seep 2013 by 4 pm (drop box WAS Bldg Level 3)