GRAIN-SIZE AND STRAIN DISTRIBUTIONS WITHIN AN AUTOMOTIVE VALVE

被引：2
|
作者：
SANCHEZ, A
COLAS, R
VELEZ, I
COLAS, R
机构：
[1] TULESA SA,MEXICO CITY,DF,MEXICO
[2] UNIV AUTONOMA METROPOLITANA AZCAPOTZALCO,MEXICO CITY 13,DF,MEXICO
[3] HYLSA SA,MONTERREY 64000,NUEVO LEON,MEXICO
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 1991年 / 28卷 / 03期
关键词：
D O I：
10.1016/0924-0136(91)90142-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The variation of grain size and hardness in the two-step forging of an automotive valve is determined and from these data, grain size, strain and hardness-distribution maps are constructed. It is found that this metallographic method is reliable in the evaluation of local values of strain, when processes that affect the grain aspect-ratio, such as recrystallization, do not take place. It was possible to determine the structural situation at any particular place within the forged pieces from the different distribution maps.
引用
收藏
页码：335 / 344
页数：10
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