期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 691, 期 -, 页码 666-671出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.08.327
关键词
Metals and alloys; Crystal growth; Optical properties; Phase transition; Light absorption and reflection; Metallography
资金
- U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division
- Theme Science Program at the Center for Nanophase Materials Sciences
- Division of Scientific User Facilities, U.S. Department of Energy
- Nanomechanics, Inc., Oak Ridge Tennessee
A decorative steel is described that is formed by a process that is unlike that of the fabrication methods utilized in making the original Damascus steels over 2000 years ago. The decorative aspect of the steel arises from a three-dimensional surface pattern that results from cryogenically quenching polished austenitic alloy single crystals into the martensitic phase that is present below 190 K. No forging operations are involved - the mechanism is entirely based on the metallurgical phase properties of the ternary alloy. The symmetry of the decorative pattern is determined and controlled by the crystallographic orientation and symmetry of the 70%Fe, 15%Ni, 15%Cr alloy single crystals. In addition to using cuts made along principal crystallographic surface directions, an effectively infinite number of other random-orientation cuts can be utilized to produce decorative patterns where each pattern is unique after the austenitic-to-martensitic phase transformation. (C) 2016 Elsevier B.V. All rights reserved.
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