Determination of mechanical properties of phase in directionally-solidified nickel-base super-alloy by nano-indentation
MA Ya-xin 1��GAO Yi-fei1��ZENG Yu-yin2
1. National Analysis Center for Iron and Steel,Central Iron and Steel Research Institute/NCS Testing Technology Co., Ltd., Beijing 100081, China 2. Institute of Structural Materials,Central Iron and Steel Research Institute, Beijing 100081, China
Abstract��In order to discuss the mechanical properties of micro-phases in super-alloy, eutectic �á� and dendrite arm of directionally-solidified nickel-base super-alloy, which were along with or perpendicular to the columnar crystal, were characterized by nano-indentation. The results showed that, for directionally-solidified nickel-base super-alloy, the average hardness and elastic modulus of eutectic �á� which were along with or perpendicular to the columnar crystal <001> direction were significantly higher than dendrite arm; moreover, the average hardness and elastic modulus of eutectic �á� and dendrite arm that were along with the columnar crystal <001> direction were lower than that were perpendicular to the columnar crystal direction.
������ ������쳣�������. ����ѹ�۷��ⶨ�����������̸��ºϽ������ѧ����[J]. �й������ڿ���, 2015, 33(2): 16-21.
MA Ya-xin ��GAO Yi-fei��ZENG Yu-yin. Determination of mechanical properties of phase in directionally-solidified nickel-base super-alloy by nano-indentation. Chinese Journal of Iron and Steel, 2015, 33(2): 16-21.
2015, Vol. 33 
