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Submitted on: 28 November 2005.
Revised on: 02 March 2006.
Accepted on: 19 March 2006.
___________________Acta Metallurgica Sinica-English Letters
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Submitted on: 06 May 2003.
Revised on: 28 July 2003.
Accepted on: 02 September 2003.
___________________Acta Metallurgica Sinica-English Letters
Submitted on: 20 January 2022.
Revised on: 19 March 2022.
Accepted on: 20 April 2022.
___________________Acta Metallurgica Sinica-English Letters