RETROGRESSION REAGING TREATMENT OF SPRAY DEPOSITED Al-Zn-Mg-Cu ALLOYS

Acta Metall Sin

2005, Vol. 41

Issue (12): 1267-1271 DOI:

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RETROGRESSION REAGING TREATMENT OF SPRAY DEPOSITED Al-Zn-Mg-Cu ALLOYS

WANG Hongbin; CUI Hua; HAO Bin; CHENG Junsheng; HUANG Jinfeng; ZHANG Jishan

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WANG Hongbin; CUI Hua; HAO Bin; CHENG Junsheng; HUANG Jinfeng; ZHANG Jishan. RETROGRESSION REAGING TREATMENT OF SPRAY DEPOSITED Al-Zn-Mg-Cu ALLOYS. Acta Metall Sin, 2005, 41(12): 1267-1271 .

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Abstract The microstructure and mechanical properties of retrogression and retrogression reaging (RRA) treated Al-Zn-Mg-Cu aluminum alloys with 11.64%Zn (mass fraction) prepared by spray deposited technology were studied using transmission electron microscopy (TEM) and MTS-810 materials test system. The results showed that with the increase of retrogression temperature and retrogression time, the ultimate tension strength (UTS) of the alloy were declined and that of RRA treated alloy exhibited a parabola feature. The UTS of the alloy treated under 120 ℃, 24 h + 180 ℃, 30 min + 120 ℃, 24 h is superior to that of peak aging alloy, which is an ideal RRA treatment system for spray deposited Al-Zn-Mg-Cu alloys.

Key words: Al-Zn-Mg-Cu alloy spray deposition retrogression reaging

Received: 13 April 2005

ZTFLH:

TG146.21

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	WANG Hongbin
	CUI Hua
	HAO Bin
	CHENG Junsheng
	HUANG Jinfeng
	ZHANG Jishan

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2005/V41/I12/1267

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