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Adolf Martens

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German metallurgist (1850–1914)

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Adolf Martens (Adolf Karl Gottfried Martens; 6 March 1850 inGammelin – 24 July 1914 inGroß-Lichterfelde) was a Germanmetallurgist and the namesake of thesteel structuremartensite and the martensitic transformation, a type ofdiffusionless phase transition in the solid state.^[1]^[2] He also made significant contributions to the field oftribology. The functional relationship between the coefficient of friction and the product of sliding speed and viscosity divided by the normal load (well known as theStribeck curve) was experimentally explored by Adolf Martens in 1888, long beforeRichard Stribeck made his pioneering measurements in 1902.^[3]