TY - CHAP

T1 - Spike-forging of AS-cast TX32 magnesium alloy

AU - Rao, K. P.

AU - Suresh, K.

AU - Hort, N.

AU - Kainer, K. U.

N1 - Conference code: 143

PY - 2014/2

Y1 - 2014/2

N2 - Magnesium alloy TX32 (Mg-3Sn-2Ca) has good corrosion and creep resistance. The processing map of TX32 exhibits a good workability domain over a fairly wide range of temperature and strain rate. To validate the processing map, spike forging of the alloy (combining backward extrusion and upsetting) was carried out at the temperatures of 400, 450 and 500 °C and at speeds of 0.1 and 1 mms-1. Finite-element (FE) simulation of the process was conducted using DEFORM-2D software to obtain the local variations of strain and strain rate. It has been found that the strain values reach as high as 1.8 at certain locations in the forged components. The average grain size has increased with increasing temperature and decreasing speed. The microstructure varied at different regions of the forged components as per the implied features of the processing map and FE simulations, with recrystallized fine grain sizes at locations corresponding to higher strains and strain rates.

AB - Magnesium alloy TX32 (Mg-3Sn-2Ca) has good corrosion and creep resistance. The processing map of TX32 exhibits a good workability domain over a fairly wide range of temperature and strain rate. To validate the processing map, spike forging of the alloy (combining backward extrusion and upsetting) was carried out at the temperatures of 400, 450 and 500 °C and at speeds of 0.1 and 1 mms-1. Finite-element (FE) simulation of the process was conducted using DEFORM-2D software to obtain the local variations of strain and strain rate. It has been found that the strain values reach as high as 1.8 at certain locations in the forged components. The average grain size has increased with increasing temperature and decreasing speed. The microstructure varied at different regions of the forged components as per the implied features of the processing map and FE simulations, with recrystallized fine grain sizes at locations corresponding to higher strains and strain rates.

KW - FE simulation

KW - Forging

KW - Formability

KW - Mg alloy

KW - Processing map

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84899815514&partnerID=8YFLogxK

U2 - 10.1002/9781118888179.ch52

DO - 10.1002/9781118888179.ch52

M3 - Article in conference proceedings

AN - SCOPUS:84899815514

SN - 9781118888162

T3 - Magnesium Technology

SP - 275

EP - 279

BT - Magnesium Technology 2014 - Held During TMS 2014 143rd Annual Meeting and Exhibition

A2 - Alderman, Martyn

A2 - Manuel, Michele V.

A2 - Hort, Nobert

A2 - Neelameggham, Neale R.

PB - The Minerals, Metals & Materials Society

T2 - 143rd Annual Meeting and Exhibition of Magnesium Technology 2014 - TMS 2014

Y2 - 16 February 2014 through 20 February 2014

ER -