基于定向退火条件下的移动热区模型,采用相场法研究定向退火条件下热区宽度对多晶材料中柱状晶形成及连续扩展的影响.模拟结果表明:增加热区宽度有利于形成柱状晶结构,且所得柱状晶的长宽比随着热区宽度的增加而增大;当热区移动速率一定时,柱状晶连续扩展所需临界热区宽度小于形成柱状晶所需临界热区宽度;当热区宽度大于初始晶粒直径的1.5倍时,热区宽度对柱状晶连续扩展的热区移动临界速率的影响很小.
参考文献
| [1] | HOSFORD W F.Mechanical behavior of materials[M].Cambridge:Cambridge University Press,2005.,2005. |
| [2] | RHINES F N .Microstructure-property relationships in materials[J].Metallurgical Transactions A,1977,8(1):127-133.,1977. |
| [3] | LI J C M.Microstructure and properties of materials[M].Singapore:World Scientific,2000.,2000. |
| [4] | HUMPHREYS F J,HATHERLY M.Recrystallization and related annealing phenomena[M].2nd ed.Oxford:Elsevier Science,2004.,2004. |
| [5] | ZHANG Z W,CHEN G L,CHEN G .Microstructural evolution of commercial pure iron during directional annealing[J].Materials Science and Engineering A,2006,422:241-251.,2006. |
| [6] | BAKER I,LI J .Directional annealing of cold-rolled copper single crystals[J].Acta Materialia,2002,50(4):805-813.,2002. |
| [7] | ZHANG Z W,CHEN G,CHEN G L .Dynamics and mechanism of columnar grain growth of pure iron under directional annealing[J].Acta Materialia,2007,55(17):5988-5998.,2007. |
| [8] | BEDDOES J,SEO D Y,SAARI H .Long term creep of TiAl+W+Si with polycrystalline and columnar grain[J].Scripta Materialia,2005,52(8):745-750.,2005. |
| [9] | GODFREY A W,MARTIN J W .The effect of directional recrystallization on the low cycle fatigue response of a powder metallurgy nickel-based superalloy at elevated temperatures[J].Materials Science and Engineering A,1997,222(2):91-100.,1997. |
| [10] | CAIRNS R L,CURWICK L R,BENJAMIN J S .Grain growth in dispersion strengthened superalloys by moving zone heat treatments[J].Metallurgical Transactions A,1975,6(1):179-188.,1975. |
| [11] | HOLM E A,ZACHAROPOULOS N,SROLOVITZ D J .Nonuniform and directional grain growth caused by grain boundary mobility variations[J].Acta Materialia,1998,46(3):953-964.,1998. |
| [12] | BADMOS A Y,FROST H J,BAKER I .Microstructural evolution during directional annealing[J].Acta Materialia,2002,50(13):3347-3359.,2002. |
| [13] | BADMOS A Y,FROST H J,BAKER I .Simulation of microstructural evolution during directional annealing with variable boundary energy and mobility[J].Acta Materialia,2003,51(10):2755-2764.,2003. |
| [14] | 魏承炀,李赛毅 .温度梯度对晶粒生长行为影响的相场模拟[J].物理学报,2011,60(10):100701-1-8.WEI Cheng-yang,LI Sai-yi.Effect of temperature gradient on grain growth behavior from phase field simulations[J].Acta Physiea Sinica,2011,60(10):100701-1-8.,2011. |
| [15] | CHEN L Q .Phase-field models for microstructure evolution[J].Annual Review of Materials Research,2002,32(1):113-140.,2002. |
| [16] | FAN D,CHEN L Q .Computer simulation of grain growth using a continuum field model[J].Acta Materialia,1997,45(2):611-622.,1997. |
| [17] | 高英俊,罗志荣,胡项英,黄创高.相场方法模拟AZ31镁合金的静态再结晶过程[J].金属学报,2010(10):1161-1172. |
| [18] | 罗志荣,高英俊,朱甜霞,卢强华,林葵.相场方法研究变形镁合金的晶粒分布[J].中国有色金属学报,2013(06):1496-1506. |
| [19] | 袁训锋,丁雨田.强界面能各向异性下二元Ni-Cu合金枝晶生长过程的相场法模拟[J].中国有色金属学报,2011(07):1656-1663. |
| [20] | 章书周,张瑞杰,曲选辉,方伟,刘明治.多元合金耦合热力学数据非等温凝固的相场模拟[J].中国有色金属学报（英文版）,2013(08):2361-2367. |
| [21] | 罗志荣,刘瑶,邓芊芊,黄礼琳,高英俊 .相场方法研究定向退火条件下柱状晶粒的形成过程[J].广西物理,2013,34(1):9-13.LUO Zhi-rong,LIU Yao,DENG Qian-qian,HUANG Li-lin,GAO Ying-jun.Phase field study of the.formation of columnar-grain structure during directional annealing[J].Guangxi Physics,2013,34(1):9-13.,2013. |
| [22] | CHEN L Q,YANG W .Computer simulation of the domain dynamics of a quenched system with a large number of nonconserved order parameters:The grain-growth kinetics[J].Physical Review B,1994,50(21):15752-15756.,1994. |
| [23] | OONO Y,PURI S .Computationally efficient modeling of ordering of quenched phases[J].Physical Review Letters,1987,58(8):836-839.,1987. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%