Influence of pre-transformed martensite on work-hardening behavior of SUS 304 metastable austenitic stainless steel
- 2 Downloads
The metastable austenite was transformed to martensite by prestrain tension of SUS304 stainless steel to study the influence of transformed martensite on its subsequent work-hardening behavior under the uniaxial tensile condition. The X-ray diffractometer (XRD) was employed to detect the transformed martensite. Results showed that the volume fraction of transformed martensite increases with increasing prestrain. The pre-transformed martensite in the microstructure remarkably affects the deformation behavior of the steel, and the strength increases and the elongation decreases. The work-hardening curve of prestrained specimens observably changes with true strain. The work-hardening exponent n of stainless steel decreases with the increase of pre-transformed martensite. The achievement is a significant contribution to the process design during pressing.
Key wordsprestrain SUS304 stainless steel martensite work-hardening behavior
Unable to display preview. Download preview PDF.
- WEI X C, LI J, MENG H. Tribological Characteristics of HS-LA TRIP Steel Containing Meta-Stable Retained Austenite [J]. Tribology, 2006, 26(1): 49.Google Scholar
- Riviere J P, Brin C, Villain J P. Structure and Topography Modifications of Austenitic Steel Surfaces After Friction in Sliding Contact [J]. Appl Phys, 2003, 76A, 277.Google Scholar
- WANG X D, HUANG B X, RONG Y H. Mechanical and Transformation Behaviors of a C-Mn-Si-Al-Cr TRIP Steel Under Stress [J]. Materials Science and Technolgy, 2006, 26 (5): 625.Google Scholar
- O’Sullivan D, Cotterell M, Meszaros I. The Characterization of Work-Hardeped Austenitic Steel by NTD Micro-Magnetic Techniques [J]. NTD&E International, 2004, 37: 265.Google Scholar