烧结铝系铝-三氧化二铝粉末冶金产品,我厂某产品的涡轮是由含9～11％Al_2O_3的烧结铝棒材制成的。在进行烧结铝棒低倍检查中常发现低倍组织上有白色、黑色条状物(简称白条、黑条)见图1。 白条、黑条究竟是什么缺陷,对性能有何影响,我们进行了一些试验和分析,弄清了白条、黑条的本 Sintered aluminum aluminum - aluminum oxide powder metallurgy products, I plant a product turbine is made of sintered aluminum with 9 ~ 11% Al_2O_3 bar. During the inspection of low magnification of sintered aluminum rods, it is often found that there are white and black bars on the low magnification tissue (referred to as white bars and black bars). White bars, black bars What is the defect, the performance of any impact, we conducted some tests and analysis to understand the white bars, black bars of this