Crack Propagation in Tool Steel X38CrMoV5 (AISI H11) in SET Specimens

被引：4
|
作者：
Shah, Masood [1 ]
Mabru, Catherine [2 ]
Boher, Christine [1 ]
Leroux, Sabine [1 ]
Rezai-Aria, Farhad [1 ]
机构：
[1] Univ Toulouse, Ecole Mines Albi, Lab Ctr Rech Outillages Mat & Proc, Toulouse, France
[2] ISAE, DMSM, Toulouse, France
来源：
ADVANCED ENGINEERING MATERIALS | 2009年 / 11卷 / 09期
关键词：
CYCLE FATIGUE;
D O I：
10.1002/adem.200900044
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An approach was proposed for investigating the sub-surface damage in hot-forming tools during machining and crack propagation in tool steel X38CrMoV5 (AISI H11) in SET specimens. The crack propagation experiments were carried out on a servo-hydraulic universal testing machine Walter + BAI LFV 40 at an ambient temperature of 25°C. Propagation was optically observed in situ with a Questar® observation microscope without interruptions. Three different thicknesses, such as 2.5, 1.0 and 0.6mm were tested to evaluate the effects of thickness on the crack propagation behavior at room temperature. A plane partition was defined on one edge of the SET specimen to define a crack. The edge of the plane inside the specimen defined the crack front and isolated a region of sufficient volume around the partition.
引用
收藏
页码：746 / 749
页数：4
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