最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
不同初始組織的3D晶粒長大仿真及其準(zhǔn)穩(wěn)態(tài)分布研究
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項(xiàng)目:

國家自然科學(xué)基金資助項(xiàng)目（50671010）


Simulation of 3D Grain Growth from Different Initial States and their Quasi-Stationary State Distributions
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    設(shè)計(jì)了晶粒尺寸分別呈β=2.96 與β=3.47的Weibull分布的2種3D初始晶粒組織，采用Potts模型Monte Carlo改進(jìn)算法進(jìn)行了界面曲率驅(qū)動的3D晶粒長大過程的仿真研究。晶粒仿真長大過程遵循拋物線長大規(guī)律，且晶粒生長指數(shù)非常接近于理論值0.5。仿真結(jié)果表明：源于2種初始組織所得準(zhǔn)穩(wěn)態(tài)晶粒尺寸均趨于β=2.80±0.03的同種Weibull分布，準(zhǔn)穩(wěn)態(tài)晶粒面數(shù)則均呈對數(shù)正態(tài)分布。進(jìn)一步分析發(fā)現(xiàn)，劉國權(quán)及其合作者近年來基于不同長大速率理論模型導(dǎo)出的兩類3D準(zhǔn)穩(wěn)態(tài)晶粒尺寸分布函數(shù)與本文仿真實(shí)驗(yàn)所得數(shù)據(jù)相互吻合。

    Abstract:

    The 3D capillarity-driven grain growth process was simulated using a modified Potts Monte Carlo technique, starting from two initial microstructures with the grain size distributions well described by Weibull functions of b=2.96 and b=3.47, respectively. The process obeys the grain growth parabolic law very well, with the time exponent n very close to 0.5. The results show that the quasi-stationary grain size distributions finally turn to the same Weibull distribution with b=2.80±0.03 for two different initial microstructures and the grain face number distributions turn to a lognormal distribution. The two analytical 3D grain size distribution functions coincide with the two kinds of functions derived by Liu Guoquan and his coworkers recently based on the different grain growth rate equations.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

王 浩,劉國權(quán),秦湘閣.不同初始組織的3D晶粒長大仿真及其準(zhǔn)穩(wěn)態(tài)分布研究[J].稀有金屬材料與工程,2009,38(1):126~130.[Wang Hao, Liu Guoquan, Qin Xiangge. Simulation of 3D Grain Growth from Different Initial States and their Quasi-Stationary State Distributions[J]. Rare Metal Materials and Engineering,2009,38(1):126~130.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2008-01-17
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: