STUDY OF AGING BEHAVIOR OF Cu-Nb CONTAINING STEELS BY CREEP METHOD

Acta Metall Sin

2005, Vol. 41

Issue (12): 1256-1260 DOI:

Research Articles

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STUDY OF AGING BEHAVIOR OF Cu-Nb CONTAINING STEELS BY CREEP METHOD

WANG Xuemin; SHANG Chengjia; YANG Shanwu; LI Chuang; HE Xinlai; ZHOU Guifeng

Department of Materials Physics; University of Science and Technology Beijing; Beijing 100083

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WANG Xuemin; SHANG Chengjia; YANG Shanwu; LI Chuang; HE Xinlai; ZHOU Guifeng. STUDY OF AGING BEHAVIOR OF Cu-Nb CONTAINING STEELS BY CREEP METHOD. Acta Metall Sin, 2005, 41(12): 1256-1260 .

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Abstract A creep test was conducted on a Gleeble-1500 thermal simulator for monitoring the aging procedure of Cu-Nb ultra-low carbon steels with different contents of copper. The result indicated that during creep testing the occurrence of precipitation could make a plateau on the creep curve. The left- and right-hand ending points of the plateau can be defined as the precipitation start (Ps) and finish (Pf) times, respectively. The Pf is in coincidence with the peak time (tp) from hardness curve. The precipitation-time-temperature (PTT) diagrams of two steels were obtained.

Key words: Cu-Nb containing ultra low carbon steels creep aging hardening

Received: 16 March 2005

ZTFLH:

TG142.31

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	WANG Xuemin
	SHANG Chengjia
	YANG Shanwu
	LI Chuang
	HE Xinlai
	ZHOU Guifeng

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2005/V41/I12/1256

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