Influence of surface morphology on the fatigue behavior of metastable austenitic steel

被引：12
|
作者：
Skorupski, Robert [1 ]
Smaga, Marek [1 ]
Eifler, Dietmar [1 ]
机构：
[1] Univ Kaiserslautern, Inst Mat Sci & Engn WKK, D-67653 Kaiserslautern, Germany
来源：
11TH INTERNATIONAL FATIGUE CONGRESS, PTS 1 AND 2 | 2014年 / 891-892卷
关键词：
surface morphology; bcc-; hcp-martensite; LCF; HCF; SEM; x-ray; AISI; 304-STAINLESS-STEEL; DEFORMATION;
D O I：
10.4028/www.scientific.net/AMR.891-892.464
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Using a low temperature turning process with carbon dioxide cooling in the cutting zone a variation of the morphology at the specimen surfaces of the metastable austenitic steel AISI 347 was realized. In LCF and HCF fatigue tests at ambient temperature and 300 degrees C the influence of the surface morphology on the cyclic deformation behavior and fatigue life was investigated by the measurement of stress-strain hysteresis. An additional magnetic measurement allows the characterization of the phase transformation from paramagnetic austenite in ferromagnetic alpha'-martensite during the turning processes and during cyclic loading. The surface morphology was studied in detail by SEM and x-ray investigations.
引用
收藏
页码：464 / 469
页数：6
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