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Title:
ANTI-FATIGUE IN-SITU ALUMINIUM-BASED COMPOSITE MATERIAL FOR HEAVY-LOAD HUBS AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/166444
Kind Code:
A1
Abstract:
Provided are an anti-fatigue in-situ aluminium-based nanocomposite material for heavy-load automobile hubs and a preparation method therefor. By means of the fine adjustment of components and a forming process, in situ nano-compositing, micro-alloying and rapid compression moulding techniques are combined. That is, after the addition of elements Zr and B, an in-situ reaction occurs to form a nano ZrB2 ceramic reinforcement which is distributed in aluminium crystals and crystal boundaries and bonded to a metallurgical interface kept firm with the matrix. Moreover, with rare earth elements Er and Y and element Zr as addition ingredients and after the increase in the contents of Cr and Mn, a structure having fine aluminium crystal grains with a large number of micro-alloyed nano precipitated particles contained in the grains, fine and round eutectic silicon grains and a fine Mg2Si phase mainly dispersed inside the grains is obtained in the process of the rapid compression moulding and thermal treatment of the hubs; and thus, the tensile strength, the yield strength and the fatigue strength of an alloy are effectively improved.

Inventors:
ZHAO, Yutao (NO.301, Xuefu RoadZhenjiang County, Jiangsu 3, 212013, CN)
PENG, Yuanpu (NO.8 Baosheng Road, BaoyingYangzhou, Jiangsu 0, 225800, CN)
FAN, Tongxiang (Shanghai Jiao Tong University, NO.800 Dong Chuan Rd, Shanghai 0, 200240, CN)
KAI, Xizhou (NO.301, Xuefu RoadZhenjiang County, Jiangsu 3, 212013, CN)
CHEN, Gang (NO.301, Xuefu RoadZhenjiang County, Jiangsu 3, 212013, CN)
WANG, Wenling (NO.8 Baosheng Road, BaoyingYangzhou, Jiangsu 0, 225800, CN)
Application Number:
CN2016/086358
Publication Date:
October 05, 2017
Filing Date:
June 20, 2016
Export Citation:
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Assignee:
JIANGSU UNIVERSITY (NO.301, Xuefu RoadZhenjiang County, Jiangsu 3, 212013, CN)
SUMEC WHEELS CO.,LTD. (NO.8 Baosheng Road, BaoyingYangzhou, Jiangsu 0, 225800, CN)
International Classes:
C22C21/02; C22C1/03; C22C1/06; C22C32/00
Foreign References:
CN101514420A2009-08-26
CN100376700C2008-03-26
US4915905A1990-04-10
Attorney, Agent or Firm:
JW IP LAW FIRM (Room 701, Floor 7Building A5, No.14 Courtyard, Jiuxianqiao Road, Chaoyang District, Beijing 5, 100015, CN)
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