Abstract:
The research lowered the corrosion of a crank made of
medium carbon steel by increasing surface hardness. Two
samples were taken from the crank and the hardness value
was 227.26 BHN.
The samples was inter in the heat treatment furnace and
heated to 850°C then cool the sample in the water, the
hardness value of the two samples became 355.12 BHR,
increasing in the hardness value is 127.86 BHN.
