文章信息/Info

Title:

Review on Development of Key Technologies in Plastic Forming of Titanium Alloy

作者:

楊合; 武川; 李宏偉; 樊曉光; 張大偉; 吉喆

西北工業(yè)大學(xué)材料學(xué)院 國家凝固重點(diǎn)實(shí)驗(yàn)室

Author(s):

YANG He; WU Chuan;  LI Hongwei;  FAN Xiaoguang;  ZHANG Dawei;  JI Zhe

State Key Laboratory of Solidification Processing, Northwestern Polytechnical University

關(guān)鍵詞:

鈦合金; 等溫局部加載; 大型復(fù)雜構(gòu)件; 回彈控制; 工藝優(yōu)化; 內(nèi)變量法; 晶體塑性有限元; 元胞自動(dòng)機(jī)

文獻(xiàn)標(biāo)志碼:

A

摘要:

    綜述了鈦合金塑性成形關(guān)鍵技術(shù)的發(fā)展?fàn)顩r。重點(diǎn)介紹了成形與微觀組織演化的研究與發(fā)展。在成形方面，主要討論了省力成形技術(shù)在鈦合金大型復(fù)雜構(gòu)件成形中的應(yīng)用，并給出了相關(guān)的實(shí)例，如鈦合金構(gòu)件的等溫成形、連續(xù)/間斷局部加載成形等；討論了精確成形技術(shù)中的回彈控制與工藝優(yōu)化等關(guān)鍵問題；在缺陷控制技術(shù)方面，主要討論了如何控制裂紋出現(xiàn)及充填不滿等問題；在微觀組織演化方面，首先討論了微觀組織的演化機(jī)制，如織構(gòu)與組織形態(tài)的演化；其次，討論了微觀組織演化的幾種數(shù)值建模方法，如內(nèi)變量法、晶體塑性理論及元胞自動(dòng)機(jī)模型。最后，提出了鈦合金構(gòu)件塑性成形技術(shù)領(lǐng)域目前存在的問題與挑戰(zhàn)。��

Abstract:

     Development of key technologies in plastic forming of titanium alloys is reviewed, focusing on two essentially important aspects, that is, shape forming and microstructure control. Force saving plastic forming technologies for shape forming are discussed on their applications in manufacturing large scale complex shaped titanium components. Some samples of isothermal forming and continuous/intermittent local loading forming of titanium components are....