Advertisement

Influence of pre-transformed martensite on work-hardening behavior of SUS 304 metastable austenitic stainless steel

  • Zong-yu Xue
  • Sheng Zhou
  • Xi-cheng Wei
Article

Abstract

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 words

prestrain SUS304 stainless steel martensite work-hardening behavior 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Smaga M, Walther F, Eifler D. Deformation-Induced Martensitic Transformation in Metastable Austenitic Steels [J]. Materials Science and Engineering A, 2008, 483–484: 394.CrossRefGoogle Scholar
  2. [2]
    Milad M, Zreiba N, Elhalouani F, et al. The Effect of Cold Work on Structure and Properties of AISI 304 Stainless Steel [J]. Journal of Materials Processing Technology, 2008, 203: 80.CrossRefGoogle Scholar
  3. [3]
    Jha Abhay K, Sivakumar D, Sreekumar K, et al. Role of Transformed Martensite in the Cracking of Stainless Steel Plumbing Lines [J]. Engineering Failure Analysis, 2008, 15: 1042.CrossRefGoogle Scholar
  4. [4]
    Perdahcioglu E S, Geijselaers H J M, et al. Influence of Plastic Strain on Deformation-Induced Martensitic Transformations [J]. Scripta Materialia, 2008, 58, 947.CrossRefGoogle Scholar
  5. [5]
    Dolinsek S. Work-Hardening in the Drilling of Austenitic Steels [J]. Journal of Materials Processing Technology, 2003, 133: 63.CrossRefGoogle Scholar
  6. [6]
    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
  7. [7]
    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
  8. [8]
    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
  9. [9]
    Ludwigson D C. Modified Stress-Strain Relation for FCC Metals and Alloys [J]. Metallurgical Transaction, 1997, 2: 2825.CrossRefGoogle Scholar
  10. [10]
    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

Copyright information

© China Iron and Steel Research Institute Group 2010

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringShanghai UniversityShanghaiChina

Personalised recommendations