2009
DOI: 10.3139/146.110156
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Short-term creep behavior of a Cr Mo V hot-work tool steel

Abstract: Hot-work tool steels are used for die casting, extrusion molding and drop forging tools and thus are exposed to high temperatures and elevated stresses during application. To get insight into the materials' behavior under those conditions, short-term creep tests are performed at temperatures in the range of 550 – 590 °C and at stress levels ranging from 400 – 750 MPa. A steady-state creep range is not observed. Instead only a minimum strain rate appears. This minimum is followed by an extended tertiary creep r… Show more

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Cited by 4 publications
(10 citation statements)
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“…Both values indicate that dislocation creep is the dominant creep mechanism [17]. A similar n value (n L 5) was also found for a hot-working tool steel with a lower carbon and chromium content [7].…”
Section: Discussionsupporting
confidence: 62%
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“…Both values indicate that dislocation creep is the dominant creep mechanism [17]. A similar n value (n L 5) was also found for a hot-working tool steel with a lower carbon and chromium content [7].…”
Section: Discussionsupporting
confidence: 62%
“…3b and d). Such a Q c was also observed for a similar hotworking tool steel [7]. A Q c of about 400 kJ mol -1 is significantly higher than the activation energy for self-diffusion (Q SD ) of iron which is about 280 kJ mol -1 [17].…”
Section: Discussionmentioning
confidence: 74%
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