Mild Steel Stainless Steel Friction

The frictional force can be expressed as.

Mild steel stainless steel friction. The value of μ s is generally higher than the value of μ k for a given combination of materials. The coefficient of static friction typically denoted as μ s is usually higher than the coefficient of kinetic friction. F f μ n 1. N normal force between the surfaces n lb there are at least two types of friction forces.

There are different grades and surface finishes of stainless steel to suit the environment to which the material will be subjected in its lifetime. The data was collected from various sources 1 2 3. However it is possible to find tables in the literature for friction coefficients between various materials. μ static μ s or kinetic μ k frictional coefficient.

Experiments are carried out when different types of steel discs such as stainless steel 201 ss 201 stainless steel 301 ss 301 and mild steel slide against mild steel pin. Coefficients of friction between materials are best determined through testing. Three distinct zones can be seen across the specimens namely the mild steel base metal the plastically deformed interface and the stainless steel base metal as shown in fig. Experiments are conducted at normal load 5 7 5 and 10 n sliding velocity 0 5 0 75 and 1 m s and relative humidity 70.

Life test under taken on 304 stainless steel and 1018 mild steel 0 600 in. For example static friction can prevent an object from sliding down a sloped surface. Friction coefficient as a function of duration of rubbing at different normal loads sliding velocity. Stainless steel differs from carbon steel by amount of chromium present.

Paulraj sathya et al. Common uses of stainless steel are cutlery and watch straps. Have observed fine grained structure in the plasticized zone weld metal while welding stainless steel. In this study friction coefficients of different steel materials are investigated and compared.

1 m s relative humidity. 70 test sample. Friction stir welding of stainless steel and nickel base alloys r j. Carbon steel rusts when exposed to air and moisture.

F f frictional force n lb. Length on pin fsw machine capable of 40 in. Diameter shoulder with 0 085 in. Where μ s is the coefficient of static friction and μ k is the coefficient of kinetic friction.

15 n relative humidity. Static friction is friction between two or more solid objects that are not moving relative to each other.