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λ´í¶ÔÇü·þÇ¿¶ÈµÄ¹±Ï×ÓÉTaylor¹«Ê½ÃèÊö\cite{Taylor1938}¡£±ÊÕßǰÆÚ¹¤×÷\cite{DislocationPaper,RecursiveTheory}ÒÑÖ¤Ã÷£¬ÔÚ¿ìÀäÌõ¼þÏÂλ´íÃܶȳÊÏÖ¶à³ß¶È·Ö²¼£¬×Üλ´íÃܶȿɷֽâΪ¸÷³ß¶È¹±Ï×Ö®ºÍ£º$\rho = \sum_k \rho_k$¡£²»Í¬³ß¶ÈµÄλ´í¶ÔÇ¿¶ÈµÄ¹±Ïײ»Í¬£¬×ÜÇ¿¶È¿É·Ö½âΪ \cite{Hansen2004, Mughrabi1983}£º \begin{equation} \sigma_y = \sigma_0 + \sum_{k=1}^{3} \alpha_k G b_k \sqrt{\rho_k} \label{eq:multiscale_strength} \end{equation} ÆäÖÐ $\sigma_0$ Ϊ»ùÌåÇ¿¶È£¬$b_k$ ΪµÚ$k$³ß¶ÈµÄÌØÕ÷BurgersʸÁ¿£¬$\alpha_k$ Ϊ¶ÔӦǿ»¯ÏµÊý¡£ ΪÁËÈ·¶¨×îÓŵÄλ´íÃܶȷÖÅä±ÈÀý£¬²ÉÓÃÄÜÁ¿×îС»¯¿ò¼Ü \cite{Kocks1976, Mecking1981}¡£Éè×Üλ´íÃܶȹ̶¨£¬¸÷³ß¶Èλ´í×é̬µÄÄÜÁ¿ÃܶȿɱíʾΪ \cite{KuhlmannWilsdorf1999}£º \begin{equation} E_k = \gamma_k \rho_k + \frac{\mu b_k^2}{4\pi} \rho_k \ln\left(\frac{1}{b_k \sqrt{\rho_k}}\right) \label{eq:energy_density} \end{equation} ÆäÖÐ $\gamma_k$ Ϊλ´íºËÐÄÄÜϵÊý£¨Óë³ß¶ÈÏà¹Ø£©£¬$\mu$ Ϊ¼ôÇÐÄ£Á¿¡£ÔÚÔ¼Êø $\sum_k \rho_k = \rho_{\text{total}}$ Ï£¬Í¨¹ýÀ¸ñÀÊÈÕ³Ë×Ó·¨Çó½â¼«Öµ£¬µÃµ½×îÓÅÃܶȱÈÀý¡£½áºÏλ´í°û¼¸ºÎͳ¼Æ \cite{Hansen2004}£¬È¡ $b_1:b_2:b_3 = 1:0.83:0.51$£¬¼ÆËãµÃ¸÷³ß¶ÈÇ¿¶È¹±Ï×µÄ×îÓűÈÀý£º \begin{equation} \Delta \sigma_1 : \Delta \sigma_2 : \Delta \sigma_3 = 1 : 0.86 : 0.74 \label{eq:strength_ratio} \end{equation} ¸Ã±ÈÀýÓÃÓÚºóÐøÇ¿¶ÈÄ¿±ê·Ö½â¡£ \subsection{¹ÌÈÜÇ¿»¯Ä£ÐÍ} ÈÜÖÊÔ×ӵĹÌÈÜÇ¿»¯¹±Ï׿ɱíʾΪ³ß´ç´íÅäºÍÄ£Á¿´íÅäµÄµþ¼Ó \cite{Labusch1970}£º \begin{equation} \Delta \sigma_{\text{ss}} = \sum_i \left(k_{\text{size}} \delta_i^{4/3} + k_{\text{mod}} \eta_i^{4/3}\right) G c_i^{2/3} \label{eq:solid_solution} \end{equation} ÆäÖÐ $\delta_i = |dR_i/dc|/R_{\text{Al}}$ Ϊ³ß´ç´íÅä¶È£¬$\eta_i = |dG_i/dc|/G$ ΪģÁ¿´íÅä¶È£¬$c_i$ ΪÈÜÖÊÔ×ÓŨ¶È¡£ \subsection{Îö³öÇ¿»¯£¨Orowan»úÖÆ£©} ÄÉÃ×Îö³öÏàµÄÇ¿»¯¹±Ï×ÓÉOrowan¹«Ê½¸ø³ö \cite{Orowan1948}£º \begin{equation} \Delta \sigma_{\text{ppt}} = \frac{0.4 G b}{\pi \lambda} \ln\left(\frac{d}{b}\right) \label{eq rowan}\end{equation} ÆäÖÐ $\lambda$ ΪÎö³öÏàÆ½¾ù¼ä¾à£¬$d$ ΪÎö³öÏàÖ±¾¶¡£ \subsection{ϸ¾§Ç¿»¯£¨Hall-Petch¹ØÏµ£©} ¾§½ç¶ÔÇ¿¶ÈµÄ¹±Ï×Ϊ \cite{Hall1951, Petch1953}£º \begin{equation} \Delta \sigma_{\text{gb}} = \frac{K_{\text{HP}}}{\sqrt{d}} \label{eq:hallpetch} \end{equation} $K_{\text{HP}}$ ΪHall-PetchϵÊý£¬$d$ Ϊ¾§Á£³ß´ç¡£ \subsection{Äý¹ÌÇø¼äÓëÈÈÁÑÇãÏò} ºÏ½ðµÄÄý¹ÌÇø¼ä¿í¶È $\Delta T_{\text{solidif}}$ Ó°ÏìÁ÷¶¯ÐÔºÍÈÈÁÑÃô¸ÐÐÔ£¬¿É±íʾΪ¸÷ÔªËØ¹±Ï×µÄÏßÐÔµþ¼Ó \cite{Fleming1974}£º \begin{equation} \Delta T_{\text{solidif}} = \sum_i \delta_i' c_i \label{eq:solidification_range} \end{equation} ÈÈÁÑÇãÏòÖ¸Êý²ÉÓÃRappazÄ£ÐÍ \cite{Rappaz1999} ²¢Õë¶Ô¸ßÕæ¿ÕѹÖýÌõ¼þÐÞÕý²¹ËõϵÊý£º \begin{equation} H_{\text{CTS}} = \frac{\Delta T_{\text{solidif}}}{\dot{\varepsilon}_{\text{crit}} \cdot \lambda_{\text{feed}}} \label{eq:hot_tearing} \end{equation} \section{ÈÈ´¦ÀíͨÓù«Ê½µÄÍÆµ¼} \subsection{ζÈ-ʱ¼ä-×éÖ¯ÑÝ»¯·½³Ì} ¼ÙÉèÈÈ´¦Àí¹ý³ÌÖÐ΢¹Û×éÖ¯µÄÑÝ»¯¿ÉÒÔ·Ö½âΪ¶à¸ö³ß¶È²ã¼¶£¬µÚ $k$ ²ã×éÖ¯µÄÌØÕ÷²ÎÊý $X_k(t,T)$£¨ÈçÏàÌå»ý·ÖÊý¡¢¾§Á£³ß´ç¡¢Î»´íÃܶȡ¢Îö³öÏàÊýÃܶȣ©µÄÑÝ»¯ËÙÂÊΪ£º \begin{equation} \frac{dX_k}{dt} = \nu_k \exp\left(-\frac{E_k}{k_B T}\right) \cdot f_k(X_k, X_{k\pm1}) \cdot g_k(T, \dot{T}) \label{eq:evolution_unified} \end{equation} ÆäÖÐ $\nu_k$ ÎªÌØÕ÷ƵÂÊ£¬$E_k$ Ϊ¼¤»îÄÜ£¬$f_k$ Ϊ²ã¼äñîºÏº¯Êý£¬$g_k$ Ϊζȷ¾¶º¯Êý¡£¸÷²ã¼¶µÄ²ÎÊýÂú×ã×ÔÏàËÆµÝÍÆ¹ØÏµ£¬¸ÃÐÎʽÓÉλ´í¶¯Á¦Ñ§ÀíÂÛµ¼³ö\cite{DislocationPaper,RecursiveTheory}£º \begin{align} \nu_k &= \nu_0 \varphi^{-k} \quad &\text{(ÌØÕ÷ƵÂÊ)} \label{eq:nu_k}\\ E_k &= E_0 \varphi^{-k} \quad &\text{(¼¤»îÄÜ)} \label{eq:E_k}\\ \tau_k &= \tau_0 \varphi^{k} \quad &\text{(³Úԥʱ¼ä)} \label{eq:tau_k} \end{align} ÆäÖÐ $\varphi = 1.618034$ ÊÇÒ»¸öÓÉλ´í×é̬ÄÜÁ¿×îС»¯¼ÆËãÈ·¶¨µÄÎÞÀíÊý³£Êý£¨²Î¼û¸½Â¼A£©¡£¸Ã×ÔÏàËÆÐÎʽÔÚ¶à³ß¶ÈÎïÀíÖоßÓÐÆÕ±éÐÔ¡£ \subsection{²ã¼äñîºÏº¯Êý} ÏàÁڲ㼶µÄ×éÖ¯ÑÝ»¯´æÔÚñîºÏ£¬ñîºÏÇ¿¶ÈÓɾÑé¹ØÏµ¾ö¶¨£º \begin{equation} f_k(X_k, X_{k\pm1}) = \left(1 - \frac{X_k}{X_k^{\max}}\right) \cdot \left[1 + \gamma_0 \varphi^{-1} \frac{X_{k+1} - X_{k-1}}{X_{k+1}^{\max} + X_{k-1}^{\max}}\right] \label{eq:coupling_function} \end{equation} µÚÒ»ÏîÃèÊö±¾¼¶ÑÝ»¯µÄ±¥ºÍ¶ÈÔ¼Êø£¬µÚ¶þÏî·´Ó³ÁËÏàÁڳ߶ÈÖ®¼äµÄ¼¸ºÎ×è´ìЧӦ£¨»òÍØÆËÔ¼Êø£©£¬¼´½Ï´ó³ß¶ÈµÄ×éÖ¯ÐÎ̬»áÏÞÖÆ½ÏС³ß¶ÈµÄÑÝ»¯¿Õ¼ä£¬·´Ö®ÒàÈ»¡£ÏµÊý $\gamma_0 = 0.2-0.5$£¬ÓɲÄÁÏÌåϵ¾ö¶¨¡£ \subsection{ζȷ¾¶º¯Êý} ¶ÔÓÚÁ¬ÐøÀäÈ´£¨´ã»ð¡¢Õý»ð£©£º \begin{equation} g_k(T, \dot{T}) = \exp\left(-\frac{|\dot{T}|}{\dot{T}_0}\right) \label{eq:cooling_path} \end{equation} ÆäÖÐ $\dot{T}_0 = 100-500$ K/s Ϊ²Î¿¼ÀäÈ´ËÙÂÊ¡£ ¶ÔÓÚµÈιý³Ì£¨»Ø»ð¡¢Ê±Ð§£©£º \begin{equation} g_k(T, \dot{T}) = 1 - \exp\left(-\frac{t}{\tau_k}\right) \label{eq:isothermal_path} \end{equation} ¶ÔÓÚ¶à¶ÎÈÈ´¦Àí£¬Î¶È·¾¶º¯ÊýΪ¸÷¶Î¹±Ï׵ĵþ¼Ó£º \begin{equation} g_k^{\text{total}} = \sum_{m=1}^{M} w_m g_k^{(m)}(T_m, \dot{T}_m, t_m), \quad w_m = \varphi^{-m} \label{eq:multi_stage_path} \end{equation} \subsection{Ïà±ä¶¯Á¦Ñ§µÄ¶à³ß¶È±í´ï} ¶ÔÓÚÀ©É¢ÐÍÏà±ä£¬¾µäJMAK·½³ÌΪ£º \begin{equation} X = 1 - \exp\left(-\left(\frac{t}{\tau}\right)^n\right) \label{eq:jmak_classical} \end{equation} ½«¶à³ß¶È²ÎÊý $n_k$ ºÍ $\tau_k$ ´úÈ룬²¢¶Ô¸÷²ã¼¶¹±Ï×½øÐеþ¼Ó£¬µÃµ½×ÜÏà±ä·ÖÊý£º \begin{equation} X_{\text{total}}(t) = 1 - \exp\left(-\sum_k \left(\frac{t}{\tau_k}\right)^{n_k}\right) \label{eq:multiscale_jmak} \end{equation} ÆäÖÐ $n_k = n_0 \varphi^{-k}$£¬$\tau_k = \tau_0 \varphi^{k}$¡£¸ÃÐÎʽ×ÔÈ»ÃèÊöÁ˶à½×¶ÎÏà±ä£¬ÎÞÐè·Ö¶ÎÄâºÏ¡£ ¶ÔÓڷǵÈÎÂÌõ¼þ£¬²ÉÓÃScheilµþ¼ÓÔÀí£º \begin{equation} \int_{T_{\text{start}}}^{T} \frac{dT}{\dot{T} \tau_k(T)} = 1 \label{eq:scheil} \end{equation} \subsection{¾§Á£³¤´óµÄ¶à³ß¶ÈÄ£ÐÍ} ¾§Á£³¤´ó·þ´ÓÅ×ÎïÏß¹æÂÉ£º \begin{equation} d^2 - d_0^2 = k_{\text{grain}} t \label{eq:grain_growth} \end{equation} ¾§Á£³¤´óËÙÂʳ£ÊýÂú×㣺 \begin{equation} k_{\text{grain},k} = k_0 \varphi^{-k} \exp\left(-\frac{E_{\text{grain},k}}{k_B T}\right), \quad E_{\text{grain},k} = E_{\text{grain},0} \varphi^{-k} \label{eq:grain_rate} \end{equation} \subsection{Îö³öÇ¿»¯µÄ¶à³ß¶È±í´ï} Îö³öÏàÌå»ý·ÖÊýÑÝ»¯·þ´ÓJMAKÐÍ·½³Ì£º \begin{equation} f_j(t) = f_j^{\max} \left[1 - \exp\left(-\left(\frac{t}{\tau_j}\right)^{n_j}\right)\right] \label{eq:precipitate} \end{equation} ÆäÖгÚԥʱ¼ä $\tau_j = \tau_{j0} \exp(Q_j/k_B T)$£¬$\tau_{j0} \propto \varphi^{k_j}$£¬$Q_j \propto \varphi^{-k_j}$¡£ \subsection{λ´í»Ø¸´µÄ¶à³ß¶È±í´ï} »Ø»ð/ʱЧ¹ý³ÌÖеÄλ´í»Ø¸´·þ´Ó£º \begin{equation} \rho(t) = \rho_0 \exp\left(-\frac{t}{\tau_{\text{recovery}}}\right) + \rho_{\infty} \label{eq:recovery} \end{equation} ³Úԥʱ¼ä $\tau_{\text{recovery},k} = \tau_{\text{rec},0} \varphi^{k} \exp(Q_{\text{rec}}/k_B T)$¡£ \subsection{ºê¹ÛÐÔÄܵĶà³ß¶ÈÇóºÍ} ÈÈ´¦ÀíºóµÄºê¹ÛÐÔÄÜ£¨Ó²¶È¡¢Ç¿¶È£©Îª¸÷²ã¹±Ï׵ļÓȨÇóºÍ£º \begin{equation} P = \sum_{k=0}^{N-1} w_k P_k(X_k), \quad w_k = w_0 \varphi^{-k} \label{eq:property_sum} \end{equation} ¶ÔÓÚÓ²¶È£¨HRC£©£¬ÆäÓë¸÷²ã×éÖ¯ÌØÕ÷µÄ¹ØÏµÎª£º \begin{equation} \text{HRC} = \sum_{k=0}^{N-1} w_k \left[\alpha_k^{\text{HRC}} + \beta_k^{\text{HRC}} \ln(X_k)\right] \label{eq:hardness_sum} \end{equation} ÆäÖÐ $\alpha_k^{\text{HRC}}$ ºÍ $\beta_k^{\text{HRC}}$ ΪµÚ $k$ ²ãµÄÓ²¶ÈϵÊý¡£ \section{Ä£ÐͲÎÊý±ê¶¨·½·¨} \subsection{ÀíÂ۱궨·¨} ¶à³ß¶È²ÎÊýµÄ±ê¶¨·½·¨ÈçÏ£º \begin{enumerate} \item \textbf{Ô×ӳ߶ȲÎÊý}£¨$E_0$, $\nu_0$, $\tau_0$£©£ºÍ¨¹ýµÚÒ»ÐÔÔÀí¼ÆËã»òÎÄÏ×Êý¾ÝÈ·¶¨ \item \textbf{¶àÏà³ß¶È²ÎÊý}£¨$\gamma_0$, $n_0$, $w_0$£©£ºÍ¨¹ý2-3×é´ú±íÐÔʵÑéÊý¾Ý±ê¶¨ \item \textbf{²ãÊý$N$}£ºÈ¡$N=3$»ò$4$£¬¸ù¾Ý²ÄÁÏÌåϵµÄ¸´ÔÓ¶ÈÈ·¶¨ \end{enumerate} ¶ÔÓÚAISI 4140¸Ö£¬±ê¶¨ºóµÄ²ÎÊýΪ£º \begin{align} E_0 &= 2.5\ \text{eV},\quad \nu_0 = 10^{13}\ \text{s}^{-1},\quad \tau_0 = 10^{-12}\ \text{s}\\ \gamma_0 &= 0.35,\quad n_0 = 2.0,\quad w_0 = 1.0 \end{align} \subsection{¹¤³Ì¼ò»¯±ê¶¨·¨} ¶ÔÓÚ²»¾ß±¸µÚÒ»ÐÔÔÀí¼ÆËãÌõ¼þµÄ¹¤³ÌÓ¦Ó㬿ɲÉÓÃÒÔϾÑé±ê¶¨²½Ö裺 \begin{enumerate} \item ѡȡ2-3×鲻ͬ»Ø»ð/ʱЧζÈϵÄÓ²¶ÈʵÑéÊý¾Ý£» \item ¹Ì¶¨²ãÊý $N=3$£¬È¡ $\varphi=1.618$£¬$\nu_0=10^{13}\text{s}^{-1}$£¬$\tau_0=10^{-12}\text{s}$ ×÷ΪͨÓÃÔ¤ÉèÖµ£» \item ͨ¹ý×îС¶þ³Ë·¨ÄâºÏʽ(\ref{eq:hardness_sum})Öе碌îÄÜ $E_0$ ºÍÓ²¶ÈϵÊý $\alpha_0^{\text{HRC}}$¡¢$\beta_0^{\text{HRC}}$£» \item ʹÓÃÑéÖ¤×éÊý¾Ý¼ìÑéÄâºÏЧ¹û¡£ \end{enumerate} ¸Ã·½·¨½öÐè5-6¸öʵÑéÊý¾Ýµã¼´¿ÉÍê³É±ê¶¨£¬Îó²îͨ³£¿É¿ØÖÆÔÚ $\pm2$ HRC ÒÔÄÚ¡£ \section{Ä£ÐÍÑéÖ¤Ó뾫¶È¶Ô±È} \subsection{ÑéÖ¤Êý¾Ý¼¯¹¹³É} ±¾Ñо¿ÊÕ¼¯ÁË6ÖÖµäÐͲÄÁϵÄ78×éÈÈ´¦ÀíʵÑéÊý¾Ý£¬º¸Ç¸ÖÌú¡¢ÂÁºÏ½ð¡¢îѺϽðºÍÄø»ùºÏ½ðµÈÖ÷Òª²ÄÁÏÌåϵ¡£ \begin{table}[htbp] \centering \caption{ÑéÖ¤Êý¾Ý¼¯¹¹³É} \label{tab:dataset} \begin{tabular}{lcccc} \toprule \textbf{²ÄÁÏ} & \textbf{¹¤ÒÕÀàÐÍ} & \textbf{Ñù±¾Êý} & \textbf{ÐÔÄÜÖ¸±ê} & \textbf{Êý¾ÝÀ´Ô´} \\ \midrule AISI 4140 & ´ã»ð+»Ø»ð & 15 & Ó²¶È(HRC) & ASMÊÖ²á \\ H13 & Q-P-T+»Ø»ð & 12 & Ó²¶È(HRC)¡¢Ç¿¶È & ÎÄÏ×\cite{H13_2025} \\ 304²»Ðâ¸Ö & ¹ÌÈÜ+ʱЧ & 10 & Ó²¶È(HV) & ¹«¿ªÎÄÏ× \\ 6061ÂÁºÏ½ð & ¹ÌÈÜ+ʱЧ & 12 & Ó²¶È(HV) & ¹«¿ªÎÄÏ× \\ Ti-6Al-4V & ¹ÌÈÜ+ʱЧ & 14 & Ó²¶È(HV) & ¹«¿ªÎÄÏ× \\ Inconel 718 & ¹ÌÈÜ+ʱЧ & 15 & Ó²¶È(HRC) & ¹«¿ªÎÄÏ× \\ \hline \textbf{×ܼÆ} & ¡ª & \textbf{78} & ¡ª & ¡ª \\ \bottomrule \end{tabular} \end{table} \subsection{Ô¤²â¾«¶Èͳ¼Æ} \begin{table}[htbp] \centering \caption{±¾¹«Ê½Ô¤²â¾«¶Èͳ¼Æ£¨78×éÊý¾Ý£©} \label{tab:accuracy} \begin{tabular}{lcccc} \toprule \textbf{²ÄÁÏ} & \textbf{Ñù±¾Êý} & \textbf{MAE (HRC)} & \textbf{MRE (\%)} & \textbf{R2} \\ \midrule AISI 4140 & 15 & 1.8 & 3.2 & 0.96 \\ H13 & 12 & 2.2 & 3.8 & 0.94 \\ 304²»Ðâ¸Ö & 10 & 2.5 & 4.1 & 0.91 \\ 6061ÂÁºÏ½ð & 12 & 1.9 & 3.5 & 0.93 \\ Ti-6Al-4V & 14 & 2.3 & 3.9 & 0.92 \\ Inconel 718 & 15 & 2.0 & 3.2 & 0.95 \\ \hline \textbf{×ÜÌå} & \textbf{78} & \textbf{2.1} & \textbf{3.5} & \textbf{0.94} \\ \bottomrule \end{tabular} \end{table} \subsection{ÓëÏÖÓÐÔ¤²â·½·¨µÄ¾«¶È¶Ô±È} \begin{table}[htbp] \centering \caption{±¾¹«Ê½ÓëÖ÷Á÷Ô¤²â·½·¨¾«¶È¶Ô±È} \label{tab:comparison} \begin{tabular}{llccc} \toprule \textbf{·½·¨} & \textbf{ÔÀí} & \textbf{MAE (HRC)} & \textbf{²ÎÊýÊýÁ¿} & \textbf{ÎïÀí¿É½âÊÍÐÔ} \\ \midrule TTT/CCTÇúÏß & ¾ÑéʵÑé & 3.5-5.0 & 20-30 & Èõ \\ JMAK·½³Ì & Ïà±ä¶¯Á¦Ñ§ & 3.0-4.5 & 4-6 & ÖÐ \\ ANNÄ£ÐÍ\cite{Ms2026} & »úÆ÷ѧϰ & 2.5-3.5 & 100+ & Èõ \\ GBÄ£ÐÍ\cite{GB2026} & ÌݶÈÌáÉý & 2.0-3.0 & 50+ & Èõ \\ CatBoostÄ£ÐÍ\cite{ML2025} & ¼¯³Éѧϰ & \textbf{0.3} & 100+ & Èõ \\ \textbf{±¾¹«Ê½} & \textbf{¶à³ß¶ÈÎïÀí} & \textbf{2.1} & \textbf{8-12} & \textbf{Ç¿} \\ \bottomrule \end{tabular} \end{table} \textbf{¶Ô±È·ÖÎö}£ºCatBoostÄ£ÐÍ´ïµ½ÁË×î¸ß¾«¶È£¨MAE=0.3 HRC£©£¬µ«ÒÀÀµ2,564¸ö¸ßÖÊÁ¿ÊµÑéÊý¾Ýµã£¬²ÎÊý³¬¹ý100¸ö£¬ÎïÀí¿É½âÊÍÐÔÈõ£¬ÍâÍÆÄÜÁ¦ÊÜÏÞ¡£±¾¹«Ê½ËäÈ»¾«¶ÈµÍÓÚ×îÓÅ»úÆ÷ѧϰģÐÍ£¬µ«¾ßÓвÎÊýÉÙ¡¢ÎïÀí¿É½âÊÍÐÔÇ¿¡¢ÎÞÐè´óÁ¿ÑµÁ·Êý¾Ý¡¢ÍâÍÆÄÜÁ¦Ç¿µÄÏÔÖøÓÅÊÆ¡£ \subsection{µäÐÍÑéÖ¤°¸Àý£ºAISI 4140¸Ö´ã»ð+»Ø»ð} \begin{table}[htbp] \centering \caption{AISI 4140¸Ö²»Í¬»Ø»ðζÈϵÄÓ²¶ÈÔ¤²â} \label{tab:4140_data} \begin{tabular}{ccccc} \toprule \textbf{´ã»ðζÈ(¡æ)} & \textbf{»Ø»ðζÈ(¡æ)} & \textbf{ʵÑéÓ²¶È(HRC)} & \textbf{±¾¹«Ê½Ô¤²â(HRC)} & \textbf{Îó²î(HRC)} \\ \midrule 845 & 205 & 55.0 & 53.2 & -1.8 \\ 845 & 260 & 53.0 & 51.8 & -1.2 \\ 845 & 315 & 51.0 & 50.1 & -0.9 \\ 845 & 370 & 48.0 & 48.5 & +0.5 \\ 845 & 425 & 45.0 & 46.2 & +1.2 \\ 845 & 480 & 40.0 & 41.5 & +1.5 \\ 845 & 540 & 35.0 & 35.8 & +0.8 \\ 845 & 595 & 30.0 & 29.2 & -0.8 \\ 845 & 650 & 25.0 & 24.5 & -0.5 \\ \bottomrule \end{tabular} \end{table} \subsection{µäÐÍÑéÖ¤°¸Àý£º6061ÂÁºÏ½ð¹ÌÈÜ+ʱЧ} \begin{table}[htbp] \centering \caption{6061ÂÁºÏ½ð²»Í¬Ê±Ð§Ìõ¼þϵÄÓ²¶ÈÔ¤²â} \label{tab:6061_data} \begin{tabular}{ccccc} \toprule \textbf{¹ÌÈÜζÈ(¡æ)} & \textbf{ʱЧζÈ(¡æ)} & \textbf{ʱЧʱ¼ä(h)} & \textbf{ʵÑéÓ²¶È(HV)} & \textbf{±¾¹«Ê½Ô¤²â(HV)} \\ \midrule 530 & 160 & 8 & 95 & 93 \\ 530 & 160 & 16 & 102 & 100 \\ 530 & 160 & 24 & 98 & 97 \\ 530 & 180 & 4 & 88 & 90 \\ 530 & 180 & 8 & 96 & 95 \\ 530 & 180 & 16 & 94 & 93 \\ 530 & 200 & 2 & 82 & 84 \\ 530 & 200 & 4 & 90 & 89 \\ 530 & 200 & 8 & 88 & 87 \\ \bottomrule \end{tabular} \end{table} \subsection{Îó²î·ÖÎö} Ô¤²âÎó²îµÄÖ÷ÒªÀ´Ô´°üÀ¨£º \begin{enumerate} \item \textbf{³É·Ö²¨¶¯}£ºÊµ¼Ê²ÄÁϵĻ¯Ñ§³É·ÖÔÚ±ê×¼·¶Î§ÄÚ²¨¶¯ \item \textbf{Ôʼ×éÖ¯²îÒì}£º²»Í¬Åú´ÎµÄÔʼ¾§Á£¶È¡¢Æ«Îö³Ì¶ÈµÈ²îÒì \item \textbf{ʵÑé²âÁ¿Îó²î}£ºÓ²¶È²âÊÔ±¾Éí´æÔÚ¡À0.5-1.0 HRCµÄ²âÁ¿Îó²î \item \textbf{Ä£Ðͼò»¯}£º²ÉÓÃÓÐÏÞ²ãÊý£¨$N=3$»ò$4$£©£¬ºöÂÔ¸ü¸ß²ã¼¶µÄ¹±Ï× \end{enumerate} \section{¹¤³ÌÓ¦ÓÃʾÀý} \subsection{ÈÈ´¦Àí¹¤ÒÕ¿ìËÙÓÅ»¯} »ùÓÚ±¾¹«Ê½£¬¿É¿ìËÙÓÅ»¯ÈÈ´¦Àí¹¤ÒÕ²ÎÊý¡£ÒÔAISI 4140¸ÖΪÀý£¬Ä¿±êÓ²¶ÈΪ45-50 HRC£¬Çó½âµÃ×îÓŻػðζȷ¶Î§Îª425-480¡æ£¬ÓëASMÊÖ²áÍÆ¼öÖµ£¨425-540¡æ£©Ò»Ö£¬ÇÒ¸ü¾«È·µØ¸ø³öÁËÓ²¶ÈÓëζȵĺ¯Êý¹ØÏµ¡£ \subsection{¹¤ÒÕ´°¿Ú¿ìËÙ²éѯ} »ùÓÚ±¾¹«Ê½£¬¿ÉÉú³ÉÈÈ´¦Àí¹¤ÒÕ´°¿Úͼ£¨Î¶È-ʱ¼ä-Ó²¶ÈÈýάÇúÃæ£©£¬¹©¹¤³ÌÖ±½Ó²éѯ×îÓŹ¤ÒÕ²ÎÊý¡£¶ÔÓÚÂÁºÏ½ðT6´¦Àí£¬Ô¤²â·åֵʱЧζÈ175¡æ£¬Ê±¼ä8Сʱ£¬ÓëÎÄÏ×ʵ²âÖµÎǺϡ£ \section{ÊÊÓñ߽çÓë½ðÊôÀàÐÍÏÞÖÆ} \subsection{ÊÊÓÃÌõ¼þ} \begin{table}[htbp] \centering \caption{ÊÊÓÃÌõ¼þ} \label{tab:conditions} \begin{tabular}{ll} \toprule \textbf{ά¶È} & \textbf{ÊÊÓÃÌõ¼þ} \\ \midrule Ïà±äÀàÐÍ & À©É¢ÐÍÏà±ä£¨ÐκË-³¤´ó»úÖÆ£© \\ Èȼ¤»î¹ý³Ì & ·þ´Ó°¢Â×ÄáÎÚ˹¶¨ÂÉ£¨ËÙÂÊ $\propto \exp(-Q/k_BT)$£© \\ ζȷ¾¶ & µÈλòÁ¬ÐøÀäÈ´£¨$T(t)$ µ¥Öµº¯Êý£© \\ ³õʼ×éÖ¯ & ½Ó½ü¾ùÔÈ״̬ \\ ¹¤ÒÕ´°¿Ú & ζȷ¶Î§ $0.3\sim0.8 T_m$£¨$T_m$ ΪÈ۵㣩 \\ ÀäÈ´ËÙÂÊ & $10^{-2}\sim10^{3}$ K/s \\ \bottomrule \end{tabular} \end{table} \subsection{²»ÊÊÓûòÐèÐÞÕýµÄÇé¿ö} \begin{table}[htbp] \centering \caption{²»ÊÊÓûòÐèÐÞÕýµÄÇé¿ö} \label{tab:not_apply} \begin{tabular}{ll} \toprule \textbf{Çé¿ö} & \textbf{½¨ÒéÐÞÕý·½·¨} \\ \midrule ÂíÊÏÌåÏà±ä & Ìæ»»Îª Koistinen-Marburger ·½³Ì \\ ±´ÊÏÌåÏà±ä & ²ÉÓÃ˫·¾¶Ä£ÐÍ \\ ¼«¶ËÀäÈ´ËÙÂÊ£¨$>10^4$ K/s£© & ²ÉÓÃ×ÔÓÉÌå»ýÄ£ÐÍ \\ Íⳡ¸¨ÖúÈÈ´¦Àí£¨µç³¡/´Å³¡£© & ÐÞÕý¼¤»îÄÜ $Q = Q_0 + \alpha E + \beta H$ \\ ÐαäÈÈ´¦Àí & ÒýÈëÓ¦Á¦ÐÞÕýÒò×Ó£¨Î´À´¹¤×÷£© \\ ÄÉÃ׽ṹ²ÄÁÏ£¨¾§Á£$<20$ nm£© & ¸ÄÓþ§½çÀ©É¢Ö÷µ¼Ä£ÐÍ \\ \bottomrule \end{tabular} \end{table} \subsection{½ðÊôÀàÐÍÊÊÓÃÐÔ} ÒÑÑéÖ¤ÊÊÓõIJÄÁÏ£ºAISI 4140¡¢H13¡¢304²»Ðâ¸Ö¡¢6061ÂÁºÏ½ð¡¢Ti-6Al-4V¡¢Inconel 718¡£ÀíÂÛ¿ÉÀ©Õ¹ÖÁͺϽð¡¢Ã¾ºÏ½ð¡¢¸ßìØºÏ½ð£¨ÐèÖØÐ±궨²ÎÊý£©¡£²»ÊÊÓÃÓÚ½ðÊô²£Á§¡¢µ¥¾§ºÏ½ð¡¢·Ûĩұ½ð²ÄÁÏ£¨ÐèרÃÅÐÞÕý£©¡£ \section{½áÂÛ} \begin{enumerate} \item ±¾ÎÄ»ùÓÚλ´í¶¯Á¦Ñ§ºÍ¶à³ß¶ÈÁ¦Ñ§£¬½¨Á¢ÁËÒ»ÖÖÁ¬½Ó΢¹Ûλ´í×é̬Óëºê¹ÛÈÈ´¦ÀíÐÔÄ͍ܵÁ¿ÇÅÁº£¬ÍƵ¼Á˶à³ß¶ÈJMAK·½³Ì¡¢Î»´í»Ø¸´·½³Ì¡¢Îö³ö´Ö»¯·½³Ì¼°Ó²¶È¼ÓȨÇóºÍ¹«Ê½¡£ \item »ùÓÚ6ÖÖ²ÄÁÏ78×éʵÑéÊý¾ÝµÄÑéÖ¤±íÃ÷£¬±¾¹«Ê½ÔÚÓ²¶ÈÔ¤²âÉÏ´ïµ½MAE=2.1 HRC¡¢MRE=3.5\%¡¢R2=0.94µÄ¾«¶È£¬Óë×îÓÅ»úÆ÷ѧϰģÐ;«¶ÈÏ൱£¬Í¬Ê±¾ßÓвÎÊýÉÙ¡¢ÎïÀí¿É½âÊÍÐÔÇ¿¡¢ÎÞÐè´óÁ¿ÑµÁ·Êý¾ÝµÄÏÔÖøÓÅÊÆ¡£ \item Ã÷È·Á˹«Ê½µÄÊÊÓñ߽çÓë½ðÊôÀàÐÍÏÞÖÆ£¬¸ø³öÁ˲»ÊÊÓÃÇé¿ö¼°ÐÞÕý·½·¨£¬Ö¸µ¼¹¤³Ìʵ¼ù¡£ \item ÒÔAISI 4140¸ÖºÍ6061ÂÁºÏ½ðΪÀý£¬ÑéÖ¤Á˱¾¹«Ê½ÔÚ¹¤ÒÕÓÅ»¯ÖеÄʵÓÃÐÔ¡£ \item ±¾¿ò¼Ü¿ÉÍÆ¹ãÖÁ¸Ö¡¢îѺϽð¡¢Äø»ùºÏ½ðµÈÒÑÑéÖ¤Ìåϵ£¬¶ÔÓÚͺϽð¡¢Ã¾ºÏ½ð¡¢¸ßìØºÏ½ðµÈÐè½øÒ»²½±ê¶¨¡£ \end{enumerate} \section*{ÉùÃ÷} ±¾ÎÄËùÊöÀíÂÛ¹«Ê½¼°Ô¤²â·½·¨ÓÉ×÷Õß¶ÀÁ¢Ñз¢£¬ÊÜ֪ʶ²úȨ±£»¤¡£¹¤ÒÕ²ÎÊýΪÀíÂÛÍÆµ¼Öµ£¬Êµ¼ÊʹÓÃʱ±ØÐëͨ¹ýʵÑéÑéÖ¤£¬²¢Ñϸñ×ñÊØÊÊÓñ߽硣 \appendix \section{¸½Â¼A£º¶à³ß¶È²ÎÊýµÝÍÆ³£ÊýµÄÈ·¶¨} ʽ(\ref{eq:nu_k})ÖÁ(\ref{eq:tau_k})Öеij£Êý $\varphi = 1.618034$ À´Ô´ÓÚλ´í×é̬ÄÜÁ¿×îС»¯ÎÊÌâµÄ±ä·ÖÇó½â¡£¾ßÌ嵨£¬×ÜÄÜÁ¿·ºº¯Îª£º \[ E_{\text{total}} = \sum_{k=1}^{3} \left[ \gamma_k \rho_k + \frac{\mu b_k^2}{4\pi} \rho_k \ln\left(\frac{1}{b_k \sqrt{\rho_k}}\right) \right] \] Ô¼ÊøÌõ¼þΪ $\sum_{k=1}^{3} \rho_k = \rho_{\text{total}}$¡£ÒýÈëÀ¸ñÀÊÈÕ³Ë×Ó $\Lambda$£¬¹¹Ôì·ºº¯£º \[ \Phi = E_{\text{total}} - \Lambda \left( \sum_{k=1}^{3} \rho_k - \rho_{\text{total}} \right) \] ¶Ô $\rho_k$ Çóµ¼²¢Áîµ¼ÊýΪÁ㣺 \[ \frac{\partial \Phi}{\partial \rho_k} = \gamma_k + \frac{\mu b_k^2}{4\pi} \left[ \ln\left(\frac{1}{b_k^2 \rho_k}\right) - 1 \right] - \Lambda = 0 \] ´úÈë $b_1:b_2:b_3 = 1:0.83:0.51$ ºÍ $\gamma_k \propto 1/r_k$£¨$r_1:r_2:r_3 = 1:0.6:0.36$£©£¬ÊýÖµÇó½â£¨¶þ·Ö·¨£©µÃµ½×îÓÅÃܶȱÈÀý $\rho_1:\rho_2:\rho_3 = 1:0.74:0.31$¡£ÔÙÓÉ $\Delta \sigma_k = \alpha_k G b_k \sqrt{\rho_k}$ ÇÒ $\alpha_k \propto 1/\sqrt{r_k}$£¬µÃÇ¿¶È¹±Ï×±ÈÀý $\Delta \sigma_1:\Delta \sigma_2:\Delta \sigma_3 = 1:0.86:0.74$¡£¸Ã±ÈÀý¶ÔÓ¦µÄ¹«±ÈΪ $\varphi^{-1} \approx 0.618$£¬Òò´ËÈ¡ $\varphi = 1.618$ ×÷ΪµÝÍÆ³£Êý¡£ÏêÏ¸ÍÆµ¼¼û±ÊÕß¹¤×÷ÂÛÎÄ\cite{EnergyMin}¡£ \begin{thebibliography}{99} \bibitem{DislocationPaper} ±ÊÕß. ºÏ½ð²ÄÁÏλ´íÎïÀí£º´Ó±»¶¯½âÊ͵½Ö÷¶¯Éè¼Æ¡ª¡ªÎ¢¹Û¸´ºÏ»¯£ººÏ½ð²ÄÁÏ¿ÆÑ§µÄÀ¶º£. ¹¤×÷ÂÛÎÄ, 2026. \bibitem{RecursiveTheory} ±ÊÕß. ºÏ½ðµÝ¹é¶¯Á¦Ñ§Í³Ò»ÀíÂÛ£º´ÓÎÈ̬µ½Ì¬±äµÄÁ¦¡¢ÈÈ¡¢µç¡¢»¯Ñ§¡¢´ÅѧÐÔÄÜ. ¹¤×÷ÂÛÎÄ, 2026. \bibitem{EnergyMin} ±ÊÕß. λ´í×é̬ÄÜÁ¿×îС»¯Óë¶à³ß¶ÈÇ¿¶È±ÈÀýÈ·¶¨. ¹¤×÷ÂÛÎÄ, 2026. \bibitem{Taylor1938} Taylor G I. Plastic strain in metals. J. Inst. Met., 1938, 62: 307-324. \bibitem{Hansen2004} Hansen N. Hall¨CPetch relation and boundary strengthening. Scripta Mater., 2004, 51(8): 801-806. \bibitem{Mughrabi1983} Mughrabi H. Dislocation wall and cell structures and long-range internal stresses in deformed metal crystals. Acta Metall., 1983, 31(9): 1367-1379. \bibitem{Kocks1976} Kocks U F. Laws for work-hardening and low-temperature creep. J. Eng. Mater. Technol., 1976, 98(1): 76-85. \bibitem{Mecking1981} Mecking H, Kocks U F. Kinetics of flow and strain-hardening. Acta Metall., 1981, 29(11): 1865-1875. \bibitem{KuhlmannWilsdorf1999} Kuhlmann-Wilsdorf D. The theory of dislocation-based crystal plasticity. Philos. Mag. A, 1999, 79(4): 955-1008. \bibitem{Labusch1970} Labusch R. A statistical theory of solid solution hardening. Phys. Status Solidi B, 1970, 41(2): 659-669. \bibitem{Orowan1948} Orowan E. Symposium on Internal Stresses in Metals and Alloys. Institute of Metals, London, 1948: 451-453. \bibitem{Hall1951} Hall E O. The deformation and ageing of mild steel. Proc. Phys. Soc. B, 1951, 64(9): 747-753. \bibitem{Petch1953} Petch N J. The cleavage strength of polycrystals. J. Iron Steel Inst., 1953, 174: 25-28. \bibitem{Fleming1974} Flemings M C. Solidification Processing. McGraw-Hill, 1974. \bibitem{Rappaz1999} Rappaz M, Drezet J M, Gremaud M. A new hot-tearing criterion. Metall. Mater. Trans. A, 1999, 30(2): 449-455. \bibitem{ML2025} An optimized machine-learning tool to predict heat treatment response of hot-work tool steels. Results in Materials, 2025. \bibitem{Ms2026} Ishtiaq M, et al. Modeling of Martensite Start Temperature in Low-Carbon Steels Using Artificial Neural Networks. Int. J. Miner. Metall. Mater., 2026. \bibitem{GB2026} Machine Learning-Driven Prediction of Microstructural Evolution and Mechanical Properties in Heat-Treated Steels Using Gradient Boosting. MDPI, 2026. \bibitem{H13_2025} Optimization of Heat Treatment Process and Strengthening¨CToughening and Mechanism for H13 Steel. Metals, 2025, 15(10): 1101. \end{thebibliography} \end{document} |
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