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TB6藥型罩鍛造過程的織構(gòu)模擬及與銅和鉭鍛造的對(duì)比
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北京科技大學(xué)

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國(guó)家自然科學(xué)基金資助(項(xiàng)目號(hào)51871131);中央高?;究蒲袠I(yè)務(wù)費(fèi)資助 (FRF-TP-20-007A3)


Texture simulation of forging process of TB6 liner and its comparison with copper and tantalum
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School of Materials Science and Engineering,University of Science and Technology Beijing

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    摘要:

    本文模擬了藥型罩用TB6鈦合金在不同鍛造工藝下的織構(gòu)形成規(guī)律,并利用鉭與銅的模擬結(jié)果對(duì)比。首先通過有限元方法模擬分析了TB6鈦合金四方拔長(zhǎng)過程中不同部位溫度、等效應(yīng)力和等效應(yīng)變的差異,之后利用VPSC(粘塑性自洽模型)模擬不同材料鍛造工藝下的織構(gòu)演變規(guī)律并進(jìn)行對(duì)比分析。結(jié)果表明,體心立方β相和鉭中心織構(gòu)與邊部存在較大的不均勻性,面心立方銅織構(gòu)類型波動(dòng)較小;多邊拔長(zhǎng)有利于弱化四方拔長(zhǎng)過程中產(chǎn)生的平行于軸向的{110}強(qiáng)織構(gòu);壓縮型織構(gòu)在以后的拔長(zhǎng)過程中依舊可以保留。

    Abstract:

    The texture formation of TB6 titanium alloy under different forging processes was investigated by simulation, and compared with tantalum and copper. Firstly, the difference of temperature, equivalent stress and equivalent strain in different parts of TB6 titanium alloy during square drawing was analyzed by finite element method, after that, VPSC (visco-plastic self-consistent model) was used to simulate the texture evolution of different materials in forging process and make a comparative analysis. The results show that the central textures of BCC β phase in titanium alloy and Ta are not uniform with the edges, and the FCC copper textures have little fluctuation. The multi-side drawing is beneficial to weaken the {110} strong texture which is parallel to the axial direction during square drawing, and the compression texture can be retained in the drawing process.

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劉國(guó)玉,顧新福,王通. TB6藥型罩鍛造過程的織構(gòu)模擬及與銅和鉭鍛造的對(duì)比[J].稀有金屬材料與工程,2023,52(8):2909~2918.[Liu Guoyu, Gu Xinfu, Wang Tong. Texture simulation of forging process of TB6 liner and its comparison with copper and tantalum[J]. Rare Metal Materials and Engineering,2023,52(8):2909~2918.]
DOI:10.12442/j. issn.1002-185X.20220671

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  • 收稿日期:2022-08-27
  • 最后修改日期:2022-11-17
  • 錄用日期:2022-11-24
  • 在線發(fā)布日期: 2023-08-28
  • 出版日期: 2023-08-24