难熔高熵合金在反应堆结构材料领域的机遇与挑战

李天昕, 卢一平, 曹志强, 王同敏, 李廷举

Opportunity and Challenge of Refractory High-Entropy Alloys in the Field of Reactor Structural Materials

LI Tianxin, LU Yiping, CAO Zhiqiang, WANG Tongmin, LI Tingju

表1 难熔高熵合金的屈服强度(σ_0.2)、塑性应变(ε)、温度(T)、相结构、名义成分(摩尔分数)和均匀化工艺^{[14,36,40~50]}

Table 1 Brief summaries of yield strength (σ_0.2), plastic strain (ε), temperature (T), phase structure, alloys composition (mole fraction) and equilibrium condition^{[14,36,40-50]}

Alloy composition	Phase structure	T / ^oC	σ_0.2 / MPa	ε / %	Equilibrium condition
Alloy composition	Phase structure				Equilibrium condition
TaNbHfZrTi^[43]	bcc	RT^C	929	>50.0	HIP+A
TaNbHfZrTiMo_0.75^[14]	bcc	RT^C	1370	>50.0	AC
MoNbTaTiV^[44]	bcc	RT^C	2208	24.9	SPS
NbMoTaWVCr^[42]	bcc+ Laves	RT^C	3416	5.3	SPS
ZrTiHfV_0.5Nb_0.5C_0.2^[45]	bcc+HfC	RT^C	955	>40.0	AC
HfNbTa^[46]	bcc	RT^T	847	10.0	AC
NbZrTiTa^[41]	bcc+bct	RT^T	657	14.4	HIP+A
HfNbTiZr^[40]	bcc+hcp	RT^T	879	14.9	A
Ti₄₈Zr₂₀Hf₁₅Al₁₀Nb₇^[47]	bcc	RT^T	904	35.0	A
Ti₃₀Al₂₀V₂₀Nb₂₀Mo₁₀^[48]	bcc	800^C	624	30.0	AC
TaNbHfZrTiMoW^[49]	bcc1+bcc2	1200^C	703	>35.0	AC
TaNbHfZrTi^[50]	bcc	1200^C	356	>50.0	AC
VNbMoTaW^[36]	bcc	1600^C	477	>10.0	AC
NbMoTaW^[36]	bcc	1600^C	405	>10.0	AC