Tension behavior of Ti–6.6Al–3.3Mo–1.8Zr–0.29Si alloy over a wide range of strain rates
Tension behavior of Ti–6.6Al–3.3Mo–1.8Zr–0.29Si alloy over a wide range of strain rates
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Ti~6.6Al~3.3Mo~1.8Zr~0.29Si合金在宽应变率范围内的拉伸行为
DOI:
10.1016/j.matlet.2014.03.042
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发表时间:
2014-06
影响因子:
3
通讯作者:
Yang Wang
中科院分区:
文献类型:
--
作者:
Jun Zhang;Yang Wang
The effect of strain rate on the tension stress–strain responses of the Ti–6.6Al–3.3Mo–1.8Zr–0.29Si alloy are investigated at strain rates ranging from 0.001 to 940 s−1. The values of tension yield strength increase with increasing strain rate. There exists the transition of rate sensitivity for flow stress under moderate-rate loading conditions. Moreover, strain rate has greater influence on the initial yielding than the strain hardening behavior. SEM observation shows that the alloy is broken in a manner of ductile fracture and the dimple size decreases with the increase of strain rate. A phenomenologically-based constitutive model is proposed to describe the rate-dependent tension behavior. The model correlations are in good agreement with the experimental data within the tested strain-rate range.
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DOI:
10.1007/s11661-003-0013-4
发表时间:
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期刊:
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影响因子:
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影响因子:
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发表时间:
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影响因子:
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作者:
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通讯作者:
Paton, NE