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<http://lib.itenas.ac.id/kti/?p=4207>
  a sioc:Post, sioct:BlogPost ;
  dc:title "Microstructural evolution of a heat-treated H23 tool steel" ;
  dcterms:identifier 4207 ;
  dc:modified "2016-02-16"^^xsd:date ;
  dc:created "2015-03-11"^^xsd:date ;
  sioc:link <https://lib.itenas.ac.id/kti/?p=4207> ;
  sioc:has_creator <https://lib.itenas.ac.id/kti/?author=6#account> ;
  sioc:has_container <https://lib.itenas.ac.id/kti/#posts> ;
  dc:abstract "" ;
  content:encoded """<![CDATA[The microstructure and the stability of carbides after heat treatments in an H23 tool steel were investigated. The heat treatments consisted of austenization at two different austenizing temperatures (1100°C and 1250°C), followed by water quenching and double-aging at 650°C, 750°C, and 800°C with air cooling between the first and second aging treatments. Martensite did not form in the as-quenched microstructures, which consisted of a ferrite matrix, M6C, M7C3, and MC carbides. The double-aged microstructures consisted of a ferrite matrix and MC, M6C, M7C3, and M23C6carbides. Secondary hardening as a consequence of secondary precipitation of fine M2C carbides did not occur. There was disagreement between the experimental microstructure and the results of thermodynamic calculations. The highest double-aged hardness of the H23 tool steel was 448 HV after austenization at 1250°C and double-aging at 650°C, which suggested that this tool steel should be used at temperatures below 650°C.

Dibuat oleh : Meilinda Nurbanasari, Panos Tsakiropoulos, Eric J. Palmiere

E-mail:  meilinda@itenas.ac.id

Kata Kunci :  tool steel, microstructural evolution, heat treatment, carbides, stability, hardness

Keterangan :  Makalah ini  dimuat pada International Journal of Minerals, Materials and Metallurgy, Vol. 22, No. 3, page 272-284.

&nbsp;

<a href="http://lib.itenas.ac.id/kti/wp-content/uploads/2015/11/Microstructural-evolution-of-a-heat-treated-H23-tool-steel.pdf">Microstructural evolution of a heat-treated H23 tool steel</a>

&nbsp;]]>"""^^rdf:XMLLiteral ;
  sioc:content """The microstructure and the stability of carbides after heat treatments in an H23 tool steel were investigated. The heat treatments consisted of austenization at two different austenizing temperatures (1100°C and 1250°C), followed by water quenching and double-aging at 650°C, 750°C, and 800°C with air cooling between the first and second aging treatments. Martensite did not form in the as-quenched microstructures, which consisted of a ferrite matrix, M6C, M7C3, and MC carbides. The double-aged microstructures consisted of a ferrite matrix and MC, M6C, M7C3, and M23C6carbides. Secondary hardening as a consequence of secondary precipitation of fine M2C carbides did not occur. There was disagreement between the experimental microstructure and the results of thermodynamic calculations. The highest double-aged hardness of the H23 tool steel was 448 HV after austenization at 1250°C and double-aging at 650°C, which suggested that this tool steel should be used at temperatures below 650°C.

Dibuat oleh : Meilinda Nurbanasari, Panos Tsakiropoulos, Eric J. Palmiere

E-mail:  meilinda@itenas.ac.id

Kata Kunci :  tool steel, microstructural evolution, heat treatment, carbides, stability, hardness

Keterangan :  Makalah ini  dimuat pada International Journal of Minerals, Materials and Metallurgy, Vol. 22, No. 3, page 272-284.

&nbsp;

Microstructural evolution of a heat-treated H23 tool steel

&nbsp;""" ;
  sioc:topic <https://lib.itenas.ac.id/kti/?cat=1>, <https://lib.itenas.ac.id/kti/?cat=4>, <https://lib.itenas.ac.id/kti/?tag=carbides>, <https://lib.itenas.ac.id/kti/?tag=hardness>, <https://lib.itenas.ac.id/kti/?tag=heat-treatment>, <https://lib.itenas.ac.id/kti/?tag=microstructural-evolution>, <https://lib.itenas.ac.id/kti/?tag=stability>, <https://lib.itenas.ac.id/kti/?tag=tool-steel> .

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