Synthesis of ductile titanium-titanium boride (Ti-TiB) composites with a beta-titanium matrix: The nature of TiB formation and composite properties

The study focused on the in-situ synthesis of titanium (Ti)-titanium boride (TiB) composites with [beta] phase in the matrix by reaction sintering of TiB^sub 2^ with Ti and alloying element powders. The goal was to examine the nature of TiB whisker formation in three different kinds of powder mixtur...

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Veröffentlicht in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2003-06, Vol.34 (6), p.1371-1385
Hauptverfasser: PANDA, K. B, RAVI CHANDRAN, K. S
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description The study focused on the in-situ synthesis of titanium (Ti)-titanium boride (TiB) composites with [beta] phase in the matrix by reaction sintering of TiB^sub 2^ with Ti and alloying element powders. The goal was to examine the nature of TiB whisker formation in three different kinds of powder mixtures: (1) [beta]-Ti alloy powders and TiB^sub 2^; (2) [alpha]-Ti powder, a master alloy (Fe-Mo) powder containing the [beta]-stabilizing elements, and TiB^sub 2^; and (3) [alpha]-Ti powder, a [beta]-stabilizing elemental powder (Mo or Nb), and TiB^sub 2^. The effects of powder packing and the relative locations of powder particles on the morphological changes in TiB whisker formation and their growth were studied at processing temperatures ranging from 1100 [degrees]C to 1300 [degrees]C. The morphology, size, and distribution of whiskers were found to be influenced by the powder-packing conditions. A large particle-size ratio in bimodally packed mixtures led to the formation of a TiB monolithic layer around [beta] grains. With a relatively finer starting powder, smaller size ratio, and trimodal packing arrangement, the TiB whiskers were found to be distributed more homogeneously in the matrix. The study also used the X-ray direct comparison method and the structure factor for the [beta] phase to determine the volume fraction of TiB phase from X-ray data. Tensile tests and fractographic investigations were carried out on selected composites. The evolution of the composite microstructure, the influence of powder-packing variables, and the morphology and growth of TiB whiskers and their effect on mechanical properties are discussed. [PUBLICATION ABSTRACT]
doi_str_mv 10.1007/s11661-003-0249-z
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B ; RAVI CHANDRAN, K. S</creator><creatorcontrib>PANDA, K. B ; RAVI CHANDRAN, K. S</creatorcontrib><description>The study focused on the in-situ synthesis of titanium (Ti)-titanium boride (TiB) composites with [beta] phase in the matrix by reaction sintering of TiB^sub 2^ with Ti and alloying element powders. The goal was to examine the nature of TiB whisker formation in three different kinds of powder mixtures: (1) [beta]-Ti alloy powders and TiB^sub 2^; (2) [alpha]-Ti powder, a master alloy (Fe-Mo) powder containing the [beta]-stabilizing elements, and TiB^sub 2^; and (3) [alpha]-Ti powder, a [beta]-stabilizing elemental powder (Mo or Nb), and TiB^sub 2^. The effects of powder packing and the relative locations of powder particles on the morphological changes in TiB whisker formation and their growth were studied at processing temperatures ranging from 1100 [degrees]C to 1300 [degrees]C. The morphology, size, and distribution of whiskers were found to be influenced by the powder-packing conditions. A large particle-size ratio in bimodally packed mixtures led to the formation of a TiB monolithic layer around [beta] grains. With a relatively finer starting powder, smaller size ratio, and trimodal packing arrangement, the TiB whiskers were found to be distributed more homogeneously in the matrix. The study also used the X-ray direct comparison method and the structure factor for the [beta] phase to determine the volume fraction of TiB phase from X-ray data. Tensile tests and fractographic investigations were carried out on selected composites. The evolution of the composite microstructure, the influence of powder-packing variables, and the morphology and growth of TiB whiskers and their effect on mechanical properties are discussed. 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B</creatorcontrib><creatorcontrib>RAVI CHANDRAN, K. S</creatorcontrib><title>Synthesis of ductile titanium-titanium boride (Ti-TiB) composites with a beta-titanium matrix: The nature of TiB formation and composite properties</title><title>Metallurgical and materials transactions. A, Physical metallurgy and materials science</title><description>The study focused on the in-situ synthesis of titanium (Ti)-titanium boride (TiB) composites with [beta] phase in the matrix by reaction sintering of TiB^sub 2^ with Ti and alloying element powders. The goal was to examine the nature of TiB whisker formation in three different kinds of powder mixtures: (1) [beta]-Ti alloy powders and TiB^sub 2^; (2) [alpha]-Ti powder, a master alloy (Fe-Mo) powder containing the [beta]-stabilizing elements, and TiB^sub 2^; and (3) [alpha]-Ti powder, a [beta]-stabilizing elemental powder (Mo or Nb), and TiB^sub 2^. 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B ; RAVI CHANDRAN, K. S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-7e261a3f37d1173ceb389611c05f39ae2502da8568c07d72328663f3da08bb653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Activated sintering</topic><topic>Alloy powders</topic><topic>Alloying elements</topic><topic>Alloys</topic><topic>Applied sciences</topic><topic>Beta phase</topic><topic>Composite materials</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Dispersion-, fiber-, and platelet-reinforced metal-based composites</topic><topic>Exact sciences and technology</topic><topic>Master alloys</topic><topic>Materials science</topic><topic>Mechanical properties</topic><topic>Metals. Metallurgy</topic><topic>Mixtures</topic><topic>Molybdenum</topic><topic>Morphology</topic><topic>Other materials</topic><topic>Physics</topic><topic>Sintering (powder metallurgy)</topic><topic>Specific materials</topic><topic>Structure factor</topic><topic>Synthesis</topic><topic>Tensile tests</topic><topic>Titanium</topic><topic>Titanium base alloys</topic><topic>Titanium diboride</topic><topic>Whiskers (metals)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>PANDA, K. B</creatorcontrib><creatorcontrib>RAVI CHANDRAN, K. 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A, Physical metallurgy and materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>PANDA, K. B</au><au>RAVI CHANDRAN, K. S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of ductile titanium-titanium boride (Ti-TiB) composites with a beta-titanium matrix: The nature of TiB formation and composite properties</atitle><jtitle>Metallurgical and materials transactions. A, Physical metallurgy and materials science</jtitle><date>2003-06-01</date><risdate>2003</risdate><volume>34</volume><issue>6</issue><spage>1371</spage><epage>1385</epage><pages>1371-1385</pages><issn>1073-5623</issn><eissn>1543-1940</eissn><coden>MMTAEB</coden><abstract>The study focused on the in-situ synthesis of titanium (Ti)-titanium boride (TiB) composites with [beta] phase in the matrix by reaction sintering of TiB^sub 2^ with Ti and alloying element powders. The goal was to examine the nature of TiB whisker formation in three different kinds of powder mixtures: (1) [beta]-Ti alloy powders and TiB^sub 2^; (2) [alpha]-Ti powder, a master alloy (Fe-Mo) powder containing the [beta]-stabilizing elements, and TiB^sub 2^; and (3) [alpha]-Ti powder, a [beta]-stabilizing elemental powder (Mo or Nb), and TiB^sub 2^. The effects of powder packing and the relative locations of powder particles on the morphological changes in TiB whisker formation and their growth were studied at processing temperatures ranging from 1100 [degrees]C to 1300 [degrees]C. The morphology, size, and distribution of whiskers were found to be influenced by the powder-packing conditions. A large particle-size ratio in bimodally packed mixtures led to the formation of a TiB monolithic layer around [beta] grains. With a relatively finer starting powder, smaller size ratio, and trimodal packing arrangement, the TiB whiskers were found to be distributed more homogeneously in the matrix. The study also used the X-ray direct comparison method and the structure factor for the [beta] phase to determine the volume fraction of TiB phase from X-ray data. Tensile tests and fractographic investigations were carried out on selected composites. The evolution of the composite microstructure, the influence of powder-packing variables, and the morphology and growth of TiB whiskers and their effect on mechanical properties are discussed. [PUBLICATION ABSTRACT]</abstract><cop>New York, NY</cop><pub>Springer</pub><doi>10.1007/s11661-003-0249-z</doi><tpages>15</tpages></addata></record>
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identifier ISSN: 1073-5623
ispartof Metallurgical and materials transactions. A, Physical metallurgy and materials science, 2003-06, Vol.34 (6), p.1371-1385
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1543-1940
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source SpringerLink Journals - AutoHoldings
subjects Activated sintering
Alloy powders
Alloying elements
Alloys
Applied sciences
Beta phase
Composite materials
Cross-disciplinary physics: materials science
rheology
Dispersion-, fiber-, and platelet-reinforced metal-based composites
Exact sciences and technology
Master alloys
Materials science
Mechanical properties
Metals. Metallurgy
Mixtures
Molybdenum
Morphology
Other materials
Physics
Sintering (powder metallurgy)
Specific materials
Structure factor
Synthesis
Tensile tests
Titanium
Titanium base alloys
Titanium diboride
Whiskers (metals)
title Synthesis of ductile titanium-titanium boride (Ti-TiB) composites with a beta-titanium matrix: The nature of TiB formation and composite properties
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