| Autor: |
XU Ting, FANG Xiao-ying, ZHU Yan-li, WANG Ming, YIN Wen-hong, GUO Hong |
| Jazyk: |
čínština |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Cailiao gongcheng, Vol 46, Iss 2, Pp 34-40 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
1001-4381 |
| DOI: |
10.11868/j.issn.1001-4381.2017.000179 |
| Popis: |
The grain orientation and the interface character distribution were investigated for γ precipitation from the supersaturated α during aging at 1323K in duplex stainless steel by using EBSD technique and misorientation analysis based on Rodrigues-Frank (R-F) space. The results show that sharp texture and the grain boundary character distribution featured by a high population of low angle grain boundary (LAB) and a small number of twin boundaries (TBs) are produced in the γ precipitated from cold-rolled supersaturated coarse α with pre-strain of ε=2. The precipitated γ grains approximately possess K-S, N-W and Bain orientation relationship with the α matrix equally. For the unstrained α matrix of the same orientation, nearly random texture and the grain boundary character predominated by TBs are introduced in the γ precipitation after aging. Most of γ have K-S relation with the α matrix. However, twining in γ leads to the deviation from typical K-S orientation relationship. And also, one-fourth of phase boundaries along γ grains containing twins are found to obey a new orientation relationship of 35°/〈110〉 with α matrix. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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