A multi-layer model of low adhesion between railway wheel and rail

被引：24
|
作者：
Olofsson, U. [1 ]
机构：
[1] KTH, Dept Machine Design, S-10044 Stockholm, Sweden
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT | 2007年 / 221卷 / 03期
关键词：
adhesion; leaf; train; wheel; rail; surface layer;
D O I：
10.1243/09544097JRRT111
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The current paper presents a new multi-layer model of low adhesion between railway wheel and rail. The model proposes that when leaves are crushed between railway wheels and rail, both a coated slippery layer and a chemically reacted, easily sheared surface layer are formed. Elemental depth profiling reveals that the chemically reacted, easily sheared surface layer contains substances such as P and Ca. Both the coated slippery layer and the chemically reacted, easily sheared surface layer must be removed to get proper adhesion between railway wheel and rail.
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页码：385 / 389
页数：5
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