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基于TiH2粉末制備Ti-13Nb-13Zr合金的微觀組織與結(jié)構(gòu)
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1.昆明理工大學(xué)材料科學(xué)與工程學(xué)院 昆明 昆明理工大學(xué)稀貴及有色金屬先進(jìn)材料教育部重點(diǎn)實(shí)驗(yàn)室 昆明;2.昆明理工大學(xué)云南省新材料制備與加工重點(diǎn)實(shí)驗(yàn)室 昆明

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中圖分類號:

TG156

基金項(xiàng)目:

國家自然科學(xué)基金資助(項(xiàng)目號51464027)


Microstructure of Ti-13Nb-13Zr alloy prepared by powder metallurgy method using TiH2 as raw material
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Affiliation:

Kunming University of Science and Technology

Fund Project:

The National Natural Science Foundation of China

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    摘要:

    利用TiH2、ZrH2的脫氫特性,結(jié)合粉末冶金方法,TiH2、Nb和ZrH2粉末經(jīng)混合球磨、壓制成型,真空燒制得到Ti-13Nb-13Zr合金,對樣品進(jìn)行金相顯微鏡、SEM、XRD分析,結(jié)果表明：燒結(jié)坯體相對密度達(dá)到92.2%,觀察金相圖及SEM結(jié)果,得出合金主要組織為α+β型片狀魏氏組織, 且在合金形成過程中β穩(wěn)定元素的Nb發(fā)揮作用,使得鈦的β相在降溫完成后仍穩(wěn)定存在；XRD結(jié)果表明：α-Ti及α-Zr為六方密排(hcp)結(jié)構(gòu)、β-Ti、Nb及β-Zr同為體心立方(bcc)結(jié)構(gòu)。

    Abstract:

    The sintering process is formulated by dehydrogenation properties of titanium hydride and zirconium hydride,combined with powder metallurgy method,Ti-13Nb-13Zr alloy is prepared by die pressing and vacuum sintering titanium hydride powde,niobium and zirconium hydride powder.The sample is investigated by metallographic microscope,SEM,XRD.The result shows that through this process, the relative density of sintered body is 92.2%.SEM result shows that platelet α and platelet β exists in the alloy.During the formation of the alloy,as beta stable element niobium makes the β-phase is still in the alloy after cooling.Analysis based on XRD data reveals the presence of the α-Ti andα-Zr are hcp and the β-Ti、Nb and β-Zr are bcc.

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王靜哲,張家敏,易健宏,甘國友,劉意春.基于TiH2粉末制備Ti-13Nb-13Zr合金的微觀組織與結(jié)構(gòu)[J].稀有金屬材料與工程,2019,48(1):152~158.[wangjingzhe, Zhang Jiamin, Yi Jianhong, Gan Guoyou, Liu Yichun. Microstructure of Ti-13Nb-13Zr alloy prepared by powder metallurgy method using TiH2 as raw material[J]. Rare Metal Materials and Engineering,2019,48(1):152~158.]
DOI：10.12442/j. issn.1002-185X.20170417

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  • 收稿日期:2017-05-18
  • 最后修改日期:2017-06-10
  • 錄用日期:2017-06-26
  • 在線發(fā)布日期: 2019-02-18
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