Published January 1, 2013 | Version v1
Journal article Metadata-only

Tribological behavior of electron beam D6ac weldment

Creators

  • 1. Department of Mechanical Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan (China)
  • 2. Chung Shan Institute of Science and Technology, Taoyuan 325, Taiwan (China)
  • 3. Institute of Materials Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan (China)

Description

Highlights: ► Flow formed D6ac steel tubing was joined using electron beam welding. ► Scratch test was used to evaluate the wear resistance of tempered weldment. ► D6ac weldment tempered at temperature of 450 °C exhibits good fracture toughness. ► Tribological behavior of tempered weldment depended on tempered microstructures. - Abstract: A flow formed D6ac steel tubing was joined using electron beam (EB) welding. Thereafter, the EB weldments were treated by tempering at temperatures of 450 °C and 550 °C. After tempering, the microstructural features, mechanical properties, and tribological characteristics of the EB D6ac weldment were studied. This study used a scratch test to evaluate the sliding wear resistance of the tempered weldment. Results indicate that the tempering softens the microstructure by reducing the dislocation density of the flow formed D6ac steel. For the 450 °C/2 h/air cooling tempering treated D6ac steel, the fracture toughness of the EB weldment can be significantly improved. The tribological behavior of the tempered D6ac weldment depended on the tempered microstructures.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.apsusc.2012.09.099

Additional details

Identifiers

DOI
10.1016/j.apsusc.2012.09.099;
PII
S0169-4332(12)01643-1;

Publishing Information

Journal Title
Applied Surface Science
Journal Volume
264
Journal Page Range
p. 45-51
ISSN
0169-4332
CODEN
ASUSEE

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44102974
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
COOLING; DISLOCATIONS; ELECTRON BEAM WELDING; ELECTRON BEAMS; FRACTURE PROPERTIES; MICROSTRUCTURE; STEELS; TEMPERATURE RANGE 0400-1000 K; TEMPERING; WEAR RESISTANCE
Descriptors DEC
ALLOYS; BEAMS; CARBON ADDITIONS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; FABRICATION; HEAT TREATMENTS; IRON ALLOYS; IRON BASE ALLOYS; JOINING; LEPTON BEAMS; LINE DEFECTS; MECHANICAL PROPERTIES; PARTICLE BEAMS; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS; WELDING

Optional Information

Copyright
Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.