Mn含量对Fe-Cu-Mn合金纳米富Cu析出相影响的相场法研究

Mn含量对Fe-Cu-Mn合金纳米富Cu析出相影响的相场法研究

赵宝军,赵宇宏,孙远洋,杨文奎,侯华

Effect of Mn Composition on the Nanometer Cu-Rich Phase of Fe-Cu-Mn Alloy by Phase Field Method

Baojun ZHAO,Yuhong ZHAO,Yuanyang SUN,Wenkui YANG,Hua HOU

表1 相场模拟中所使用的参数值^[31]

Table 1 The parameters used in the phase field model^[31]

Parameter	Value	Unit
$k_{c}$ , $k_{η}$	$k_{c} = 5.0 \times 10^{- 15}, k_{η} = 1.0 \times 10^{- 15}$	J·m²·mol^-1
$V_{m}$	$7.09 \times 10^{- 6}$	m³·mol^-1
T	823	K
Y	$214$	GPa
$L_{x} \times L_{y} \times L_{z}$	$32 \times 32 \times 32$	nm³
$S_{i}$	$S_{C u} = 3.29 \times 10^{- 2}$ , $S_{M n} = 5.22 \times 10^{- 4}$
W	$5.0 \times 10^{3}$	J·mol^-1
$D_{i}^{0, φ} (φ = α, γ)$	$D_{C u}^{0, α} = 4.7 \times 10^{- 5},$ $D_{C u}^{0, γ} = 4.3 \times 10^{- 5}$ ， $D_{M n}^{0, α} = 1.49 \times 10^{- 4}$ , $D_{M n}^{0, γ} = 1.78 \times 10^{- 5}$	m²·s^-1
$Q_{i}^{0, φ} (φ = α, γ)$	$Q_{C u}^{0, α} = 2.44 \times 10^{5}$ , $Q_{C u}^{0, γ} = 2.80 \times 10^{5}$ ， $Q_{M n}^{0, α} = 2.33 \times 10^{- 5}$ , $Q_{M n}^{0, γ} = 2.64 \times 10^{5}$	J·mol^-1