Microstructure of Copper Alloy Effects on Cavitation Damage
The cavitation erosion behavior of ZQAl9-4-4-2 nickel-alum inium bronze in 2.4%NaCl solution was investigated by using a magnetostrictive – induced cavitation facility. The micrographs of damaged surface were observed by scanning electron microscope (SEM) and transmission electron microscopy(TEM). The results showed that the cavitation microcrack in the a phase adjacent to the k phase. They propagated and connected with each other in the a phases, resulted in the removal of a phases and detachment of the k phase from the matrix in the following test period followed. The microcracks tended to propagate parallelly to the eroded surfaces.
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
W. J. Xing "Microstructure of Copper Alloy Effects on Cavitation Damage", Advanced Materials Research, Vols. 239-242, pp. 575-579, 2011