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基于體視學原理的鈦合金顯微組織定量分析
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國家重點基礎(chǔ)研究發(fā)展計劃 (2007CB613807)；教育部“新世紀優(yōu)秀人才支持計劃”項目(NCET-07-0696)


Quantification of Microstructural Features in Titanium Alloys Based on Stereology
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    摘要:

    鈦合金顯微組織的多樣性給定量金相學研究帶來了很大困難。在分析鈦合金金相學特點及熱變形中顯微組織演變機制的基礎(chǔ)上，應用體視學和定量金相學的方法，結(jié)合圖形的數(shù)學運算，初步建立了一套針對鈦合金不同典型顯微組織特征參數(shù)的定量測量分析模型與方法，為定量化研究鈦合金顯微組織的演變以及組織與性能之間的關(guān)系進行了探索性工作。該定量分析模型與方法具有較強的可行性，實現(xiàn)了包括相的體積分數(shù)、β晶粒大小、魏氏組織中α條的厚度、叢域尺寸及網(wǎng)籃等多種類型組織中α相的尺寸、形態(tài)、位向分布等顯微特征的參數(shù)化定量描述與分析。同時，提出了對

    Abstract:

    The complexity and diversity of microstructural information involved in Ti alloys makes it rather difficult to quantitatively analyze properties or describe microstructural evolution behavior. Feasible and rigorous models capable of quantifying various microstructural data are rarely researched. Based on metallographical characteristics and mechanism of microstructure evolution, applying the stereology and quantitative Metallography rules, a preliminary system of models and methods for quantifying many important microstructural features of Ti alloys was developed. The work is an exploration for investigating the microstructure evolution and the relationship between microstructure and performance of Ti alloys. These microstructural features mainly include phase volume fraction, β grain size, thickness of Widmanst?tten α laths, colony size, and α phase information (size/orientation/aspect) in some microstructures. Six rules for manual-splitting α phase on image processing was presented. These models and methods are feasible, and explained with some examples

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王凱旋,曾衛(wèi)東,邵一濤,趙永慶,周義剛.基于體視學原理的鈦合金顯微組織定量分析[J].稀有金屬材料與工程,2009,38(3):398~403.[Wang Kaixuan, Zeng Weidong, Shao Yitao, Zhao Yongqing, Zhou Yigang. Quantification of Microstructural Features in Titanium Alloys Based on Stereology[J]. Rare Metal Materials and Engineering,2009,38(3):398~403.]
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  • 收稿日期:2008-02-21
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