Investigation of hot workability behavior of as-cast Mg–5Sn–2Ca (TX52) magnesium alloy through processing map

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Investigation of hot workability behavior of as-cast Mg–5Sn–2Ca (TX52) magnesium alloy through processing map. / Suresh, K.; Rao, K. P.; Prasad, Y. V.R.K. et al.
in: Production and Manufacturing Research, Jahrgang 2, Nr. 1, 01.01.2014, S. 241-252.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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@article{36c42897325440338ba2d9aab4b7e69e,
title = "Investigation of hot workability behavior of as-cast Mg–5Sn–2Ca (TX52) magnesium alloy through processing map",
abstract = "The hot deformation behavior of TX52 has been studied with a processing map developed on the basis of its temperature and strain rate dependence of flow stress. The map exhibits two domains of dynamic recrystallization in the ranges of (1) 300–410 °C/0.0003–0.003 s−1 and (2) 440–550 °C/0.02–10 s−1. Kinetic analysis gives apparent activation energy values of 191 and 198 kJ/mol in Domains 1 and 2, respectively. These values are higher than self-diffusion in Mg signifying that substantial back stress is being generated due to the large volume fraction of intermetallic particles in the matrix. In Domain 1, basal + prismatic slip occurs with recovery by climb, while at higher temperatures (Domain 2) second-order pyramidal slip occurs with simultaneous softening by cross-slip. Domain 2 is recommended for maximizing workability and Domain 1 for finishing steps to achieve finer grain size in the final product.",
keywords = "activation energy, dynamic recrystallization, hot workability, Mg–Sn–Ca alloy, processing map, Engineering",
author = "K. Suresh and Rao, {K. P.} and Prasad, {Y. V.R.K.} and N. Hort and Kainer, {K. U.}",
year = "2014",
month = jan,
day = "1",
doi = "10.1080/21693277.2014.904761",
language = "English",
volume = "2",
pages = "241--252",
journal = "Production and Manufacturing Research",
issn = "2169-3277",
publisher = "Taylor and Francis Ltd.",
number = "1",

}

RIS

TY - JOUR

T1 - Investigation of hot workability behavior of as-cast Mg–5Sn–2Ca (TX52) magnesium alloy through processing map

AU - Suresh, K.

AU - Rao, K. P.

AU - Prasad, Y. V.R.K.

AU - Hort, N.

AU - Kainer, K. U.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The hot deformation behavior of TX52 has been studied with a processing map developed on the basis of its temperature and strain rate dependence of flow stress. The map exhibits two domains of dynamic recrystallization in the ranges of (1) 300–410 °C/0.0003–0.003 s−1 and (2) 440–550 °C/0.02–10 s−1. Kinetic analysis gives apparent activation energy values of 191 and 198 kJ/mol in Domains 1 and 2, respectively. These values are higher than self-diffusion in Mg signifying that substantial back stress is being generated due to the large volume fraction of intermetallic particles in the matrix. In Domain 1, basal + prismatic slip occurs with recovery by climb, while at higher temperatures (Domain 2) second-order pyramidal slip occurs with simultaneous softening by cross-slip. Domain 2 is recommended for maximizing workability and Domain 1 for finishing steps to achieve finer grain size in the final product.

AB - The hot deformation behavior of TX52 has been studied with a processing map developed on the basis of its temperature and strain rate dependence of flow stress. The map exhibits two domains of dynamic recrystallization in the ranges of (1) 300–410 °C/0.0003–0.003 s−1 and (2) 440–550 °C/0.02–10 s−1. Kinetic analysis gives apparent activation energy values of 191 and 198 kJ/mol in Domains 1 and 2, respectively. These values are higher than self-diffusion in Mg signifying that substantial back stress is being generated due to the large volume fraction of intermetallic particles in the matrix. In Domain 1, basal + prismatic slip occurs with recovery by climb, while at higher temperatures (Domain 2) second-order pyramidal slip occurs with simultaneous softening by cross-slip. Domain 2 is recommended for maximizing workability and Domain 1 for finishing steps to achieve finer grain size in the final product.

KW - activation energy

KW - dynamic recrystallization

KW - hot workability

KW - Mg–Sn–Ca alloy

KW - processing map

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84977110989&partnerID=8YFLogxK

U2 - 10.1080/21693277.2014.904761

DO - 10.1080/21693277.2014.904761

M3 - Journal articles

AN - SCOPUS:84977110989

VL - 2

SP - 241

EP - 252

JO - Production and Manufacturing Research

JF - Production and Manufacturing Research

SN - 2169-3277

IS - 1

ER -

DOI

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