ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A surface-treatment technique using primary explosive was applied to a 316L type stainless steel. Some characterizations of the induced mechanical or metallurgical effects are given such as surface roughness, microhardness, residual stresses, microstructure. Fatigue tests were performed in tension-compression in the plastic strain-controlled mode with amplitudes in the range 10−3 to 5×10−3. The cyclic behaviour of the treated samples is characterized by a higher cyclic stress amplitude than the untreated material and a shorter fatigue life. The surface damage has been analysed by counting the secondary microcracks after failure. The cyclic behaviour and the damage are discussed taking into account the different induced effects and assuming the treated material to be a composite one, with a highly strengthened surface layer and a quasi-untreated bulk
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00356629
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