期刊论文

The wear map of 2024 aluminium alloy under dry sliding against mild steel

Chen, J.(jmchen@lsl.ac.cn)

中文

摩擦学学报

Mocaxue Xuebao/Tribology

1004-0595

2002

22

2

94-98

10.3321/j.issn:1004-0595.2002.02.004

国家自然科学基金 (5 992 5 5 13 )； 美国通用汽车公司资助课题 (2 0 0 0 )；

本校为其他机构

基于语句程序频谱的软件故障定位方法,通常利用搜集程序在运行测试用例集合产生的语句覆盖信息来实现故障语句定位,但这种定位技术缺乏语句块筛选机制,从而使定位精度受限. 为此,提出一种基于分层程序频谱的软件故障定位方法,其具体思想是将故障定位分为函数故障定位和语句故障定位两个层次,在函数故障定位层次上使用函数调用对程序频谱对程序中的函数发生故障的可疑值进行计算,主动筛选“最有可能”发生故障的函数; 在语句故障定位层次上优先处理可疑值较大的函数,计算函数中每条语句发生故障可疑值,根据可疑值大小定位语句故障. 实验表明,提出的方法能快速地找到故障语句,缩小故障代码审查区域...

The tribological properties of aluminum alloy sliding against AISI-1045 steel were examined, with an emphasis on the transformation of the wear mechanisms under different testing conditions and on the relationship between the wear mechanism transformation and the generation of micro-cracks in the sub-worn surface. Accordingly, the wear map of 2024 aluminum alloy under dry sliding against the mild steel was constructed based on the careful analysis of the worn surface, cross-section, transfer film and wear debris by means of scanning electron microscopy and energy dispersive spectrometry. As a ...