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選區(qū)激光熔化制備鈦鋁合金研究進(jìn)展
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作者單位:

西北工業(yè)大學(xué)凝固技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室

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通訊作者:

中圖分類號(hào):

TG6669

基金項(xiàng)目:

國(guó)家重點(diǎn)研發(fā)計(jì)劃(項(xiàng)目號(hào)2021YFB3702605), 國(guó)家自然科學(xué)基金(項(xiàng)目號(hào)52274367),重慶市自然科學(xué)基金杰出青年項(xiàng)目(項(xiàng)目號(hào)cstc2021jcyj-jqX0032)


RESEARCH PROGRESS OF SELECTIVE LASER MELTING TITANIUM ALUMINIDE ALLOY
Author:
Affiliation:

State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an , China

Fund Project:

the National key Research and Development Program of China (2021YFB3702605), the National Natural Science Foundation of China (52274367) , the Natural Science Foundation of Chongqing, China (cstc2021jcyj-jqX0032)

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    摘要:

    鈦鋁合金具有密度小、比強(qiáng)度高、耐高溫、抗蠕變、抗氧化等優(yōu)點(diǎn),可以很好地滿足航空發(fā)動(dòng)機(jī)渦輪葉片的高溫應(yīng)用環(huán)境,是近年新金屬材料研究的一大熱點(diǎn)。然而鈦鋁合金冷熱加工成形困難,嚴(yán)重限制著其規(guī)?;瘧?yīng)用。選區(qū)激光熔化(SLM)具有加工速度快、成形精度高、近凈成形等優(yōu)點(diǎn),有望用以實(shí)現(xiàn)高性能鈦鋁合金的一體化成形制備,進(jìn)而推動(dòng)鈦鋁合金的規(guī)?;瘧?yīng)用。本文綜述了近年來(lái)國(guó)內(nèi)外關(guān)于SLM鈦鋁合金制備技術(shù)的研究進(jìn)展,系統(tǒng)評(píng)述了粉末成分及形貌、成形工藝參數(shù)和成形后熱處理對(duì)SLM鈦鋁合金的缺陷、相組成、微觀組織和力學(xué)性能的影響,并展望了SLM鈦鋁合金的未來(lái)發(fā)展方向。

    Abstract:

    Owing to its high specific strength, creep resistance, oxidation resistance and low density, titanium aluminide alloy (TiAl) is regarded as an ideal candidate material to replace nickel-based superalloys for the fabrication of engine turbine blades used in aerospace applications. However, its application is restricted by the poor plasticity at room temperature and difficulties in hot shaping. Comparing with conventional subtractive manufacturing process, selective laser melting possesses some unique advantages such as short lead time, high processing resolution, near-net shape forming, etc. Therefore, it can be used to remedy the deficiency of conventional subtractive manufacturing process and accelerate the application of TiAl. This paper summarized the research progress of titanium aluminide manufactured by selective laser melting at home and abroad. The effect of chemical composition, powder morphology, printing parameters and post-printing heat treatment on the printing defects, phase constitutes, microstructure and mechanical properties were reviewed comprehensively. Finally, we outlooked the future developing directions of SLM TiAl.

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引用本文

李康安,萬(wàn)杰,唐斌,薛祥義,李金山,陳彪.選區(qū)激光熔化制備鈦鋁合金研究進(jìn)展[J].稀有金屬材料與工程,2024,53(12):3526~3538.[Li Kangan, Wan Jie, Tang Bin, Xue Xiangyi, Li Jinshan, Chen Biao. RESEARCH PROGRESS OF SELECTIVE LASER MELTING TITANIUM ALUMINIDE ALLOY[J]. Rare Metal Materials and Engineering,2024,53(12):3526~3538.]
DOI:10.12442/j. issn.1002-185X.20230653

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  • 收稿日期:2023-10-19
  • 最后修改日期:2023-12-06
  • 錄用日期:2024-01-05
  • 在線發(fā)布日期: 2024-12-23
  • 出版日期: 2024-12-16