Cu—Zn合金贝氏体孕育期溶质原子特性的研究(英文)

THE BEHAVIOR OF SOLUTE ATOMS DURING BAINITIC INCUBATION PERIOD IN A Cu—Zn ALLOY

作者通过测定内摩擦、成分分析及同一位置上的TEM观察,研究了Cu(42.85wt%)Zn合金贝氏体孕育期的溶质原子特性。研究表明,在贝氏体孕育期间,首先发生溶质原子偏析并形成溶质原子贫化区,然后由于该区贝氏体切变形成的驱动力增大,贝氏体通过切变而成核。

The behavior of solute atoms during bainitic incubation period in a Cu —42.85wt% Zn alloy was investigated by internal friction measurement,composition analysis and high- temperature TEM in situ observation.It was found that,at first,the segregation of solute atoms takes place and the solute depleted region forms within the bainitic incubation period and then bainite nucleates by shear because the driving force of bainite shear formation increases in that region.