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estimation of brinell (HB) and Rockwell hardness (HRB)

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S-N graph

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Lawson-Miller (predict the time to rupture for a component that is subected to a

stress)

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!""L#N$ %#&$R&M

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'MR#N$ H&' 'R&'MN'

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NN'*&N 'NS#L S'RN$'H &LL"+ S'L&H H&' 'R&'MN'

NN'*&N %*!'#L#'+ S'RN$'H &LL"+ S'L&H H&' 'R&'MN'

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,,,. B &$#'&'% "#L

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