DEFORMAION AND WORK HARDENING OF HADFIELD MANGANESE STEEL

Acta Metall Sin

1989, Vol. 25

Issue (4): 142-145 DOI:

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DEFORMAION AND WORK HARDENING OF HADFIELD MANGANESE STEEL

SHI Deke;LIU Junhai X'ian Jiaotong University

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SHI Deke;LIU Junhai X'ian Jiaotong University. DEFORMAION AND WORK HARDENING OF HADFIELD MANGANESE STEEL. Acta Metall Sin, 1989, 25(4): 142-145.

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Abstract Work hardening of Hadfield manganese steel is mainly from twocauses: 1) a large amount of twinning makes perfect dislocal is or shockley dislo-cations to be blocked up at the coherent twin boundaries. 2) deformation leads tostrong unsymmetrical distortion due to a large number of Mn-C pairs or Mn-vaca-ncy carbon-carbon clusters. It has been demonstrated by TEM observation and in-ternal friction tests. As deformation proceeds, slip constantly accommodates twin-hing shear giving rise to stress relaxation. Thus, Hadfield steel possesses both rapidwork hardening and good ductility.

Key words: twin work hardening dislocation

Received: 18 April 1989

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1989/V25/I4/142

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