Next Article in Journal
Material State Awareness for Composites Part II: Precursor Damage Analysis and Quantification of Degraded Material Properties Using Quantitative Ultrasonic Image Correlation (QUIC)
Previous Article in Journal
A Micro-Pressure Sensing Method Based on the Micropatterned Electrodes Filled with the Microspheres
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Materials 2017, 10(12), 1441; doi:10.3390/ma10121441

Strain Evolution in Cold-Warm Forged Steel Components Studied by Means of EBSD Technique

1
Department of Management and Engineering, University of Padua, I-36100 Vicenza, Italy
2
Zoppelletto S.p.A., Via Camisana, I-36040 Vicenza, Italy
3
Department of Engineering Design and Materials, NTNU, Richard Birkelands vei 2b, 7491 Trondheim, Norway
*
Author to whom correspondence should be addressed.
Received: 30 October 2017 / Revised: 12 December 2017 / Accepted: 13 December 2017 / Published: 18 December 2017
View Full-Text   |   Download PDF [22762 KB, uploaded 18 December 2017]   |  

Abstract

Electron BackScatter Diffraction (EBSD) in conjunction with Field-Emission Environmental Scanning Electron Microscopy (FEG-ESEM) has been used to evaluate the microstructural and local plastic strain evolution in different alloys (AISI 1005, AISI 304L and Duplex 2205) deformed by a single-stage cold and warm forging process. The present work is aimed to describe the different behavior of the austenite and ferrite during plastic deformation as a function of different forging temperatures. Several topological EBSD maps have been measured on the deformed and undeformed states. Then, image quality factor, distributions of the grain size and misorientation have been analyzed in detail. In the austenitic stainless steel, the γ-phase has been found to harden more easily, then α-phase and γ-phase in AISI 1005 and in duplex stainless steel, sequentially. Compared to the high fraction of continuous dynamic recrystallized austenitic zones observed in stainless steels samples forged at low temperatures, the austenitic microstructure of samples forged at higher temperatures, 600–700 °C, has been found to be mainly characterized by large and elongated grains with some colonies of fine nearly-equiaxed grains attributed to discontinuous dynamic recrystallization. View Full-Text
Keywords: low-carbon steel; stainless steel; EBSD; cold and warm forging low-carbon steel; stainless steel; EBSD; cold and warm forging
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Ferro, P.; Bonollo, F.; Bassan, F.; Berto, F. Strain Evolution in Cold-Warm Forged Steel Components Studied by Means of EBSD Technique. Materials 2017, 10, 1441.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top