TY - JOUR
T1 - Ordering transformations in Ni75Mo15Mn10 alloy
AU - Kulkarni, U. D.
AU - Hata, S.
AU - Mitsuhara, M.
AU - Ikeda, K.
N1 - Funding Information:
This work was partly supported from the Research Superstar Support Program in Kyushu University, Japan.
PY - 2010/10
Y1 - 2010/10
N2 - Effect of partial substitution of Mo in Ni3Mo by Mn on its ordering behaviour is studied here using Transmission Electron Microscopy (TEM). The change in alloy composition does not change the nature of the short range ordered (SRO) state, which shows intensity maxima at {1 1/2 0} and equivalent positions. However, prolonged aging at 973 K leads to transformation of the Ni75Mo15Mn10 alloy, studied here, almost entirely into the ordered D022 phase unlike in the case of the binary Ni-Mo alloy. Curved antiphase boundaries (APBs), with wetting of the interdomain D022 regions by the disordered phase, characterize the microstructure of the aged alloy. A small volume fraction of a sigma-like topologically close packed (TCP) phase that appears in the as quenched alloy seems to remain unaffected by ageing.
AB - Effect of partial substitution of Mo in Ni3Mo by Mn on its ordering behaviour is studied here using Transmission Electron Microscopy (TEM). The change in alloy composition does not change the nature of the short range ordered (SRO) state, which shows intensity maxima at {1 1/2 0} and equivalent positions. However, prolonged aging at 973 K leads to transformation of the Ni75Mo15Mn10 alloy, studied here, almost entirely into the ordered D022 phase unlike in the case of the binary Ni-Mo alloy. Curved antiphase boundaries (APBs), with wetting of the interdomain D022 regions by the disordered phase, characterize the microstructure of the aged alloy. A small volume fraction of a sigma-like topologically close packed (TCP) phase that appears in the as quenched alloy seems to remain unaffected by ageing.
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U2 - 10.1007/s12666-010-0125-7
DO - 10.1007/s12666-010-0125-7
M3 - Article
AN - SCOPUS:78651382629
SN - 0972-2815
VL - 63
SP - 819
EP - 822
JO - Transactions of the Indian Institute of Metals
JF - Transactions of the Indian Institute of Metals
IS - 5
ER -