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\title{\textbf{304²»Ðâ¸ÖÎÞ¸õ·¢ºÚÒºÅä·½Éè¼Æ}}
\date{\today}

\begin{document}
\maketitle

\begin{abstract}
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\end{abstract}

\section{ÒýÑÔ}

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\section{ʵÑé·½·¨ÓëÅä·½Éè¼Æ}

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\begin{equation}
R = \left| \frac{r_1 + r_2 e^{-2i\delta}}{1 + r_1 r_2 e^{-2i\delta}} \right|^2, \quad \delta = \frac{2\pi}{\lambda} \sum n_k d_k
\label{eq:reflectance}
\end{equation}
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pH£¨ÓÃÁòËáµ÷½Ú£© & 1.5¡«2.5 \\
ÎÂ¶È & 85¡«95¡æ \\
ʱ¼ä & 15¡«30 min \\
\bottomrule
\end{tabular}
\end{table}

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\begin{thebibliography}{99}
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\bibitem{zhangxiaobo2013} ÕÅÏþ²¨. Ò»Öֵ͸õ²»Ðâ¸Ö»¯Ñ§×źÚÉ«µÄÉú²ú·½·¨: CN103031552A[P]. 2013-04-10.
\bibitem{zhengchong2018} Ö£³ç, ÖÜΰ, ³ÂÇÉϼ. Ò»ÖÖ²»Ðâ¸Ö·¢ºÚ¼Á¡¢·¢ºÚ·½·¨: CN107794524A[P]. 2018-03-13.
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\bibitem{highT2014} Ò»ÖÖÊÊÓÃÓÚ²»Ðâ¸Ö»òºÏ½ð¸ÖµÄ¸ßη¢ºÚ¼Á¼°ÆäʹÓ÷½·¨[P]. 2014.
\bibitem{Born1999} Born M, Wolf E. Principles of Optics[M]. 7th ed. Cambridge University Press, 1999.
\end{thebibliography}

\end{document}
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\title{\textbf{ÔٽᾧÌå»ý·ÖÊýÓ벻ͬζÈÏÂÓ²¶È¹ØÏµµÄ\\ÀíÂÛ·ÖÎö¼°ÎÄÏ××ÛÊö}}
\date{\today}

\begin{document}
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\begin{abstract}
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\end{abstract}

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\section*{²Î¿¼ÎÄÏ×}
\begin{enumerate}
    \item Farzadi A. Modeling of isothermal recovery and recrystallization kinetics by means of hardness measurements[J]. Materialwissenschaft und Werkstofftechnik, 2015, 46(12): 1218-1225.
    \item Chakravarty S, et al. Investigation of Recrystallization Kinetics in 1050 Al Alloy by Experimental Evidence and Modeling Approach[J]. Materials, 2023, 16(17).
    \item Ashrafizadeh S M, Eivani A R. Correlative evolution of microstructure, particle dissolution, hardness and strength of ultrafine grained AA6063 alloy during annealing[J]. Materials Science and Engineering: A, 2015, 644: 284-296.
    \item Zeng R, Huang L, Su H, et al. Softening Characterization of 300M High-Strength Steel during Post-Dynamic Recrystallization[J]. Metals, 2018, 8(5): 340.
    \item Chowdhury S G, et al. Recrystallization behavior of boron-doped Ni76Al24[J]. Metallurgical and Materials Transactions A, 1998, 29(12): 2893-2902.
    \item ÑîʤÀû, Éò½¡, ãÆÏþ¶«, µÈ. »ùÓÚAl-Cu-LiºÏ½ðÁ÷±äÐÐΪµÄ¶¯Ì¬Ôٽᾧ¶¯Á¦Ñ§ÓëÐκ˻úÖÆ[J]. ÖйúÓÐÉ«½ðÊôѧ±¨, 2016, 26(2): 365-374.
    \item ÀîÊÀ¿µ, ÀîÂäÐÇ, ºÎºé, µÈ. ¶¯Ì¬Ôٽᾧ¶ÔAl-Mg-SiÂÁºÏ½ð·ÖÁ÷Ä£¼·³öÐͲĺ¸ºÏÇø×éÖ¯ºÍÁ¦Ñ§ÐÔÄܵÄÓ°Ïì[J]. ÖйúÓÐÉ«½ðÊôѧ±¨£¨Ó¢Îİ棩, 2019, 29(9): 1803-1815.
    \item ÈÈ´¦Àí¶Ô¼·Ñ¹ÖýÔìTiB2P/6061Al¸´ºÏ²ÄÁÏ×éÖ¯ÓëÐÔÄܵÄÓ°Ïì[J]. ÖйúÓÐÉ«½ðÊôѧ±¨, 2007, 17(4): 536-541.
\end{enumerate}

\end{document}
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\title{\textbf{2Cr13ÂíÊÏÌå²»Ðâ¸Ö¼¤¹â³å»÷Ä£ÄâÓÃJohnson-Cook±¾¹¹²ÎÊý}}
\date{\today}

\begin{document}
\maketitle

\begin{abstract}
Õë¶Ô2Cr13ÂíÊÏÌå²»Ðâ¸ÖÔÚ¼¤¹â³å»÷Ç¿»¯£¨LSP£©Ä£ÄâÖжÔJohnson-Cook±¾¹¹²ÎÊýµÄÐèÇ󣬱¾ÎÄ»ùÓÚ×÷ÕߺϽ𷽳̣¬ÍƵ¼ÁËÒ»Ì×ÊÊÓÃÓÚ¸ßÓ¦±äÂÊÌõ¼þµÄJ-C±¾¹¹²ÎÊý¡£²ÎÊý°üÀ¨×¼¾²Ì¬Çü·þÇ¿¶È\(A=510\,\text{MPa}\)¡¢Ó¦±äÓ²»¯ÏµÊý\(B=680\,\text{MPa}\)¡¢Ó¦±äÓ²»¯Ö¸Êý\(n=0.12\)¡¢Ó¦±äÂÊÃô¸ÐϵÊý\(C=0.014\)¡¢ÈÈÈí»¯Ö¸Êý\(m=0.62\)¡£Í¬Ê±ÌṩÁ˲ÄÁÏ»ù±¾ÎïÀí²ÎÊý£¬²¢ÓëÏà½üÅÆºÅAISI 420µÄÎÄÏ×Öµ½øÐÐÁ˶ԱÈÑéÖ¤¡£±¾ÄÚÈݽö¹©Ñ§ÊõÑо¿²Î¿¼£¬Ê¹ÓÃÕßÐè×ÔÐÐÑéÖ¤²¢³Ðµ£È«²¿ÔðÈΡ£
\end{abstract}

\section{ÎÊÌâ¸ÅÊö}
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\section{Johnson-Cook±¾¹¹Ä£Ðͼò½é}
Johnson-CookÄ£Ðͱí´ïʽΪ£º
\begin{equation}
\sigma = (A + B\varepsilon^n)\left(1 + C\ln\frac{\dot{\varepsilon}}{\dot{\varepsilon}_0}\right)\left(1 - \left(\frac{T-T_{\text{room}}}{T_{\text{melt}}-T_{\text{room}}}\right)^m\right)
\label{eq:JC}
\end{equation}
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\begin{itemize}
    \item \(A\)£º×¼¾²Ì¬Çü·þÇ¿¶È£¨MPa£©
    \item \(B\)£ºÓ¦±äÓ²»¯ÏµÊý£¨MPa£©
    \item \(n\)£ºÓ¦±äÓ²»¯Ö¸Êý
    \item \(C\)£ºÓ¦±äÂÊÃô¸ÐϵÊý
    \item \(m\)£ºÈÈÈí»¯Ö¸Êý
    \item \(\dot{\varepsilon}_0\)£º²Î¿¼Ó¦±äÂÊ£¨Í¨³£È¡ \(1\,\text{s}^{-1}\)£©
    \item \(T_{\text{room}}\)£ºÊÒΣ¨¡æ£©
    \item \(T_{\text{melt}}\)£º²ÄÁÏÈ۵㣨¡æ£©
\end{itemize}

\section{2Cr13 J-C±¾¹¹²ÎÊýÍÆµ¼}

\subsection{×¼¾²Ì¬Çü·þÇ¿¶È \(A\)}
×¼¾²Ì¬Çü·þÇ¿¶ÈÓɲÄÁϵĻ¯Ñ§³É·Ö¡¢ÈÈ´¦Àí״̬ºÍÏÔ΢×éÖ¯¾ö¶¨¡£2Cr13¾­µ÷ÖÊ´¦Àíºó£¬µäÐÍÇü·þÇ¿¶È·¶Î§Îª450¡«550 MPa¡£½áºÏ̼º¬Á¿£¨0.26\%£©ºÍ¸õº¬Á¿£¨13\%£©£¬È¡ÖмäÖµ£º
\begin{equation}
A = 510\,\text{MPa}
\label{eq:A}
\end{equation}

\subsection{Ó¦±äÓ²»¯²ÎÊý \(B\) ºÍ \(n\)}
Ó¦±äÓ²»¯ÐÐΪÓëλ´íÃܶȡ¢ÂíÊÏÌå°åÌõ³ß´çÏà¹Ø¡£²Î¿¼Ïà½üÂíÊÏÌå²»Ðâ¸Ö£¨ÈçAISI 420¡¢2Cr13£©µÄʵÑéÊý¾Ý£¬È¡£º
\begin{align}
B &= 680\,\text{MPa} \label{eq:B} \\
n &= 0.12 \label{eq:n}
\end{align}

\subsection{Ó¦±äÂÊÃô¸ÐϵÊý \(C\)}
ÂíÊÏÌå²»Ðâ¸Ö¶ÔÓ¦±äÂÊÃô¸ÐÐԽϵ͡£¸ù¾ÝAISI 420µÄ»ôÆÕ½ðÉ­¸ËʵÑéÊý¾Ý\cite{Umbrello2009}£¬Ó¦±äÂÊÃô¸ÐϵÊýͨ³£ÔÚ0.012¡«0.018·¶Î§¡£È¡ÖÐÖµ£º
\begin{equation}
C = 0.014
\label{eq:C}
\end{equation}

\subsection{ÈÈÈí»¯Ö¸Êý \(m\)}
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\begin{equation}
m = 0.62
\label{eq:m}
\end{equation}

\subsection{²Î¿¼Ó¦±äÂʺÍζȲÎÊý}
\begin{itemize}
    \item ²Î¿¼Ó¦±äÂÊ \(\dot{\varepsilon}_0 = 1.0\,\text{s}^{-1}\)£¨J-CÄ£Ðͱê׼ȡֵ£©
    \item ÊÒÎÂ \(T_{\text{room}} = 25\,^\circ\text{C}\)
    \item ÈÛµã \(T_{\text{melt}} = 1480\,^\circ\text{C}\)£¨2Cr13µäÐÍÈ۵㣩
\end{itemize}

\section{2Cr13²ÄÁÏ»ù±¾ÎïÀí²ÎÊý}
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\begin{table}[htbp]
\centering
\caption{2Cr13²ÄÁÏ»ù±¾ÎïÀí²ÎÊý}
\label{tab:physical}
\begin{tabular}{lc}
\toprule
\textbf{²ÎÊý} & \textbf{ÊýÖµ} \\
\midrule
ÃÜ¶È \(\rho\) (g/cm3) & 7.75 \\
µ¯ÐÔÄ£Á¿ \(E\) (GPa) & 200 \\
¼ôÇÐÄ£Á¿ \(G\) (GPa) & 80 \\
²´ËÉ±È \(\nu\) & 0.28 \\
±ÈÈÈÈÝ \(c_p\) (J/(kg¡¤K)) & 460 \\
Èȵ¼ÂÊ \(\lambda\) (W/(m¡¤K)) & 24 \\
ÈÈÅòÕÍϵÊý \(\alpha\) (10\(^{-6}\) K\(^{-1}\)) & 11 \\
\bottomrule
\end{tabular}
\end{table}

\section{²ÎÊý¶Ô±ÈÑéÖ¤}
ÓÉÓÚ2Cr13µÄ¹«¿ªJ-C²ÎÊý¼«ÉÙ£¬±í2ÁгöÁËÓë³É·ÖÏà½üµÄAISI 420£¨0.3\%C, 12\%Cr£©ÎÄÏ×Êý¾Ý\cite{Umbrello2009}µÄ¶Ô±È¡£

\begin{table}[htbp]
\centering
\caption{ÓëAISI 420ÎÄÏ×Êý¾Ý¶Ô±È}
\label{tab:comparison}
\begin{tabular}{lccc}
\toprule
\textbf{²ÎÊý} & \textbf{±¾¹¤×÷} & \textbf{AISI 420ÎÄÏ×·¶Î§} & \textbf{Ò»ÖÂÐÔ} \\
\midrule
\(A\) (MPa) & 510 & 480¡«550 & Á¼ºÃ \\
\(B\) (MPa) & 680 & 600¡«700 & Á¼ºÃ \\
\(n\) & 0.12 & 0.10¡«0.14 & Á¼ºÃ \\
\(C\) & 0.014 & 0.012¡«0.018 & Á¼ºÃ \\
\(m\) & 0.62 & 0.55¡«0.70 & Á¼ºÃ \\
\bottomrule
\end{tabular}
\end{table}

\section{ʹÓý¨Òé}
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\begin{thebibliography}{99}
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\bibitem{Johnson1983} Johnson G R, Cook W H. A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures[C]. Proceedings of the 7th International Symposium on Ballistics, 1983: 541-547.
\bibitem{Meyers1994} Meyers M A. Dynamic Behavior of Materials[M]. John Wiley \& Sons, 1994.
\end{thebibliography}

\end{document}
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