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1
The effect of annealing environment on tensile properties of 316 austenitic stainless steel at room temperature.
Abduluyahed A.A., Zieliński W., Kurzydłowski K.J.
Inżynieria Materiałowa
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1998
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R. XIX, nr 3
315-318
EN
The effect of aging time and environment at 600 degrees centigrade on room temperature properties of 316-type stainless steel has been investigated. The annealing in vacuum results in a discontinuous yielding of specimens while specimens annealed in air yield in a continuous way. The annealing in vacuum significantly increases the flow stress, while does not change the work hardening rate in the range of microscopically uniform deformation.
2
TEM investigations of the surface influence on mechanical properties of austenitic stainless steel.
Zieliński W., Abduluyahed A.A., Kurzydłowski K.J.
Inżynieria Materiałowa
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1998
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R. XIX, nr 3
331-334
EN
A relation between surface characteristics and mechanical properties of an austenistic stainless steel is a topic of this work. Transmission electron microscopy has been utilised to characterise microstructure of the surface layers and core of the samples of 316 - type austenistic stainless steel subjected to various treatments. It has been found that mechanical polishing of the surface changes its character to a degree which brings about noticeable alteration in mechanical properties. An attempt is made to correlate the influence of surface layers on mechanical properties with their microstructure and dislocation density in the volume of analysed samples.
3
Oxidation of a micrograined austenitic stainless steel and its effect on tensile properties.
Abduluyahed A.A., Sikorski K., Kurzydłowski K.J.
Inżynieria Materiałowa
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1998
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R. XIX, nr 3
327-330
EN
Experimental studies of plastic deformation in a 316-type stainless steel have been carried out to evaluate the effect of test temperature and environment. Two experimental environments have been used: atmospheric air and vacuum. The analysis concerned properties examined during tensile test at a constant strain rate. The serrated yielding was observed at temperatures intermediate and it has been found that the number of serrations per unit strain is higher while the flow stress is lower in air. The chemical composition of the oxide scales has been studied. It has been shown that the processes of oxidation depend on the environment and chemical compositions of the material.
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