Title:
MICROALLOYED HIGH-TOUGHNESS LOW-DENSITY STEEL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/179168
Kind Code:
A1
Abstract:
Disclosed are a microalloyed high-toughness low-density steel and a preparation method therefor. One or more of the following microalloyed elements including V, Nb, Ti and Mo are distributed in an iron-based austenite microstructure of an Fe-Mn-Al-C alloy system, and the microalloyed elements and C in the Fe-Mn-Al-C alloy system are precipitated in the form of carbides from austenite grains and/or austenite grain boundaries, which facilitates the effective combination of the high toughness and low density of the low-density steel.
Inventors:
CAO WENQUAN (CN)
WANG CUNYU (CN)
YU FENG (CN)
XU HAIFENG (CN)
XU DA (CN)
WANG CUNYU (CN)
YU FENG (CN)
XU HAIFENG (CN)
XU DA (CN)
Application Number:
PCT/CN2021/128426
Publication Date:
September 01, 2022
Filing Date:
November 03, 2021
Export Citation:
Assignee:
IRON AND STEEL RES INSTITUTE (CN)
International Classes:
C22C38/04; C21D8/02; C21D8/06; C22C38/06; C22C38/12; C22C38/14; C22C38/16; C22C38/20; C22C38/22; C22C38/24; C22C38/26; C22C38/28; C22C38/32; C22C38/34; C22C38/38
Foreign References:
| CN113088826A | 2021-07-09 | |||
| CN110607480A | 2019-12-24 | |||
| CN106244927A | 2016-12-21 | |||
| CN111270158A | 2020-06-12 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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