Download or read book Mechanical Properties Structure Correlation for Commercial Specification of Cast Particulate Metal Matrix Composites written by and published by . This book was released on 2002 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research, the effects of casting foundry, testing laboratory, surface conditions, and casting processes on the mechanical properties of A359-SiC composites were identified. To observe the effects, A359-SiC composites with 20 and 305 SiC particles were cast at three different foundries and tested at three different laboratories. The composites were cast in sand and permanent molds and tested as-cast and machined conditions. To identify the effect of the volume fraction and distribution of particles on the properties of the composites, particle distribution was determined using Clemex Image analysis systems, and particle volume fraction was determined using wet chemical analysis and Clemex Image analysis systems. The microstructure and fractured surfaces of the samples were analyzed using SEM, and EDX analysis was done to analyze chemical reaction between the particles and the matrix. The results of the tensile strengths exhibited that the tensile strengths depend on the density and porosity of the composites; in general the higher tensile strength is associated with lower porosity and higher density. In some cases, composites with lower density were higher than these with higher density. In the Al-20% SiC samples, the composites with more inclusions exhibited a lower tensile strength than the ones with fewer inclusions. This suggests that macroscopic casting defects such as micro-porosity, shrinkage porosity and inclusions appear to strongly influence the tensile strength more than the microstructure and particle distribution. The fatigue properties of A359/20 vol.% SiC composites were investigated under strain controlled conditions. Hysteresis loops obtained from strain controlled cyclic loading of 20% SiCp reinforced material did not exhibit any measurable softening or hardening. The fatigue life of Al-20% SiC heat treated alloy at a given total strain showed wide variation in fatigue life, which appeared to be related to factors such as inclusions, porosity, and particle distribution. The inclusions and porosity on the fracture surfaces seem to have a more significant influence on the fatigue life of cast Al-20% SiC as compared to other variables, including SiC particle volume percentage and its distribution. Striations were generally not visible on the fracture surface of the composites. In many specimens, SiC particle fracture was also observed. Fracture was more severe around pores and inclusions than in the matrix away from them. Inclusions and porosity seem to have a much stronger influence on fatigue behavior than the particle distribution. The analysis suggests that the enhancement of fatigue behavior of cast MMCs requires a decrease in the size of defects, porosity, and inclusions. The particle volume fraction determined using wet chemical analysis gives values of SiC vol.% which are closer to the nominal Sic % than the values of SiC% obtained by ultrasonic and Clemex Image Analysis system. In view of ALCAN's recommendation one must use wet chemical analysis for determining the volume percent SiC.
Download or read book Energy Materials Coordinating Committe EMaCC Fiscal Year 1999 Annual Technical Report written by and published by DIANE Publishing. This book was released on with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Materials Coordinating Committe EMaCC Fiscal Year 1998 Annual Technical Report written by and published by DIANE Publishing. This book was released on with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Materials Coordinating Committe EMaCC Fiscal Year 2000 Annual Technical Report written by and published by DIANE Publishing. This book was released on with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Materials Coordinating Committe EMaCC Fiscal Year 1997 Annual Technical Report written by and published by DIANE Publishing. This book was released on with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fiscal Year 2001 Budget Authorization Request written by United States. Congress. House. Committee on Science. Subcommittee on Energy and Environment and published by . This book was released on 2001 with total page 1538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The DOE FY 99 Budget Authorization Request H R 1806 to Provide for the Consolidation of the DOE Offices of Fossil Energy Renewable Energy and Energy Efficiency S 965 to Amend Title II of the Hydrogen Future Act of 1996 written by United States. Congress. House. Committee on Science. Subcommittee on Energy and Environment and published by . This book was released on 2000 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Processing Properties and Applications of Cast Metal Matrix Composites written by P. K. Rohatgi and published by Minerals, Metals, & Materials Society. This book was released on 1996 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book the current status of metal matrix covers composites which are produced via solidification technology. It examines processes involved in the synthesizing of composites, structure/property relationships, and established and emerging industrial applications, particularly in the automotive industry.
Download or read book Mechanical Properties of Metallic Composites written by Shojiro Ochiai and published by CRC Press. This book was released on 1993-12-17 with total page 823 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides coverage of dispersion-hardened and fibre-reinforced alloys, addressing principal mechanisms, processing and applications. Mechanical behaviour based on dislocation theory and elastic-plastic mechanics is dealt with and data on advanced composites are provided.
Download or read book The Relationship Between Microstructure and Mechanical Properties of Particulate Reinforced Metal Matrix Composite written by Jian-Hua Shyong and published by . This book was released on 1994 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by Murray L. Scott and published by Woodhead Publishing. This book was released on 1997 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Matrix Composites in Industry written by Alexander Evans and published by Springer Science & Business Media. This book was released on 2003-08-31 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: CD-ROM contains: Three interlinked filemaker searchable databases.
Download or read book Metal Matrix Composites written by Antonio Contreras Cuevas and published by Springer. This book was released on 2018-10-27 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers several aspects of the synthesis of composites by the pressureless infiltration technique. It describes the methods used to obtain green preforms, such as cold pressed and hot sintering, describing the heating time, load, and time required for pressing the preforms. Additionally, wettability phenomena, which is directly related on infiltration, is extensively described. Wettability process and interfacial reactions are analyzed in many ceramic-metal systems prior to fabricate the composites. A complete description of fabrication processes for Metal Matrix Composites is included. An extensive section on structural, chemical, and mechanical characterization of composites fabricated with aluminum and magnesium alloys as matrices reinforced with titanium carbide (TiC), aluminum nitride (AlN), silicon carbide (SiC) and alumina (Al2O3) is included. Relevant techniques for joining composites, such as welding and brazing are addressed. As well as issues pertaining to the corrosion and wear of composites are discussed as well. Corrosion behavior of some composites exposed to aqueous media was analyzed. Corrosion of composites using TiC and SiC like reinforcement and Al, Ni, and some Al-Cux, Al-Mgx and Al-Cu-Li alloys like matrix is discussed extensively. The structural characterization techniques addressed include: scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), optical microscopy (OM), differential thermal analysis (DTA), high resolution transmission electron microscopy (HRTEM), and thermogravimetry analysis (TGA). Mechanical testing including hardness, elastic modulus, tension tests, and impact tests were used in the characterization of composites. Theoretical models for prediction of some mechanical properties are included too.
Download or read book Testing Technology of Metal Matrix Composites written by N. R. Adsit and published by ASTM International. This book was released on 1988 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cast Reinforced Metal Composites written by Steven G. Fishman and published by . This book was released on 1988 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Matrix Composites written by Brian Terry and published by . This book was released on 1990 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by Murray L. Scott and published by Woodhead Publishing. This book was released on 1997 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:
