Rumford is a town in Oxford County, Maine, United States. The population was 6,472 at the 2000 census. Rumford is home to both an important paper industry and the Black Mountain of Maine ski resort. Originally called New Pennacook Plantation, the township was granted in 1779 to Timothy Walker, Jr. and associates of Concord, New Hampshire.
The charpy test, izod test and other impact testing determines material toughness or impact strength in the presence of a flaw or notch and fast loading conditions. This destructive test involves fracturing a notched specimen and measuring the amount of energy absorbed by the material during fracture.
Finally a metal was chosen from the group for a. wear resistant application based on this ranking. The hardest of the eleven samples, gray. cast iron, was chosen for this application. 1 Introduction. Hardness testing is a method by which the overall toughness of a material can be. determined. There are several different scales that can be employed in hardness testing. based on the material under examination. All of the different scales operate in the same. manner.