IMPROVEMENT IN MECHANICAL PROPERTIES OF MEDICAL STAINLESS STEELS BY USING LIQUID- PHASE SINTERING

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JAVANBAKHT M.; HADIANFARD M.J.; SALAHINEJAD E.

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Journal: JOURNAL OF NEW MATERIALS Year:2015 | Volume:6 | Issue:1 (21) Page(s): 73-82

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Title

IMPROVEMENT IN MECHANICAL PROPERTIES OF MEDICAL STAINLESS STEELS BY USING LIQUID- PHASE SINTERING

Author(s)

JAVANBAKHT M. | HADIANFARD M.J. | SALAHINEJAD E. | Issue Writer Certificate

Keywords

HARDNESSQ2

LIQUID- PHASE SINTERINGQ2

STAINLESS STEEL IMPLANTQ2

WEARQ2

Abstract

In this research, nickel- free austenitic stainless steel samples with the chemical composition of ASTM F2581 were produced by powder metallurgy (mechanical alloying and LIQUID- PHASE SINTERING by a Mn-Si eutectic alloy additive) for medical applications. Afterwards, their structure, HARDNESS and WEAR behavior were investigated. The structure of the powders and sintered samples was studied by scanning electron microscopy, optical microscopy, image analyzer method, density measurements and ferritometry. Also, the effect of the sintering aid content on density, HARDNESS and WEAR behavior was focused on. By investigating the samples with 0 to 8% additive, the lowest porosity level and the highest HARDNESS and WEAR resistance were obtained for the sample having 6% sintering aid. The optimum mechanical properties of this sample, in comparison with the others, are attributed to the lowest porosity level (about 10%), the nanocrystalline structure and the presence of nitrogen and carbon in the structure. In the presence of this amount additive, liquid-phase sintering was activated, the mechanical properties were improved compared to the additive-free sample.

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APA: Copy

JAVANBAKHT, M., HADIANFARD, M.J., & SALAHINEJAD, E.. (2015). IMPROVEMENT IN MECHANICAL PROPERTIES OF MEDICAL STAINLESS STEELS BY USING LIQUID- PHASE SINTERING. JOURNAL OF NEW MATERIALS, 6(1 (21)), 73-82. SID. https://sid.ir/paper/169699/en

Vancouver: Copy

JAVANBAKHT M., HADIANFARD M.J., SALAHINEJAD E.. IMPROVEMENT IN MECHANICAL PROPERTIES OF MEDICAL STAINLESS STEELS BY USING LIQUID- PHASE SINTERING. JOURNAL OF NEW MATERIALS[Internet]. 2015;6(1 (21)):73-82. Available from: https://sid.ir/paper/169699/en

IEEE: Copy

M. JAVANBAKHT, M.J. HADIANFARD, and E. SALAHINEJAD, “IMPROVEMENT IN MECHANICAL PROPERTIES OF MEDICAL STAINLESS STEELS BY USING LIQUID- PHASE SINTERING,” JOURNAL OF NEW MATERIALS, vol. 6, no. 1 (21), pp. 73–82, 2015, [Online]. Available: https://sid.ir/paper/169699/en

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