Mechanical properties and microstructure characterization of coated AM2 Al 6061-T6 mats exposed to simulated thermal blast

Microstructure characterization and defects formation of a joint fabricated by friction stir welding on two plates of Al 6061 were studied. In this study, plates were in the height of 2mm and input parameters were pin profile (square and cylindrical shape), rotating speed (800 and 1600 rpm) and traverse speed (40, 80 and 120 mm/min). Also, some experiments were conducted and the effects of input variables on the microstructure of the samples are studied by using an optical microscope. Based on the results, a sound defect-free weld could be achieved by optimizing the ratio of traverse speed to rotational one, due to the influence of this ratio on the amount of heat generated during the FSW process. It has been also concluded that higher ratios of traverse speed to rotating speed can result in poor welds.

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Variability in mechanical properties and microstructure characterization of CuAlBe shape memory alloys for vibration mitigation

Smart Structures and Systems ◽

10.12989/sss.2008.4.2.103 ◽

2008 ◽

Vol 4 (2) ◽

pp. 103-121 ◽

Cited By ~ 15

Author(s):

Fabio Casciati ◽

Casper van der Eijk

Keyword(s):

Mechanical Properties ◽

Shape Memory Alloys ◽

Shape Memory ◽

Microstructure Characterization ◽

Vibration Mitigation

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Influence of isothermal bainitic processing on the mechanical properties and microstructure characterization of TRIP steel

Journal of University of Science and Technology Beijing Mineral Metallurgy Material ◽

10.1016/s1005-8850(08)60107-3 ◽

2008 ◽

Vol 15 (5) ◽

pp. 574-579 ◽

Cited By ~ 7

Author(s):

Haitao Jiang ◽

Hubin Wu ◽

Di Tang ◽

Qiang Liu

Keyword(s):

Mechanical Properties ◽

Trip Steel ◽

Microstructure Characterization

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Microstructural Characterization of Dual and Multiphase Steels Applied to Automotive Industry

Materials Science Forum ◽

10.4028/www.scientific.net/msf.775-776.146 ◽

2014 ◽

Vol 775-776 ◽

pp. 146-150 ◽

Cited By ~ 1

Author(s):

Cristina Sayuri Fukugauchi ◽

Antonio dos Reis Faria Neto ◽

Rosinei Batista Ribeiro ◽

Marcelo dos Santos Pereira

Keyword(s):

Mechanical Properties ◽

Microstructural Characterization ◽

Tensile Tests ◽

Ferrite Matrix ◽

Microstructure Characterization ◽

Second Phase ◽

Dual Phase ◽

Dual Phase Steels ◽

Trip Steels

TRIP (Transformation Induced Plasticity) and DP (Dual-Phase) steels are written in a new series of steels which present excellent mechanical properties. As for microstructure aspect, TRIP steels consist on a ferrite matrix with a second phase dispersion of other constituents, such as bainite, martensite and retained austenite, while dual-phase steels consist on martensite dispersion in a ferrite matrix. In order to identify the different microconstituents present in these materials, microstructure characterization techniques by optical microscopy (using different etchants: LePera, Heat-Tinting and Nital) and scanning electron microscopy were carried out. This being so, microstructures were correlated with mechanical properties of materials, determined by means of tensile tests. It is concluded that steels assisted by TRIP effect have a strength and elongation relation higher than the dual-phase one. With microstructure characterization, it was observed phases present in these materials microstructure.

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