8Mn5相，Ti顆粒與Mg基體的界面結(jié)構(gòu)為結(jié)合良好的共格界面。拉伸試驗(yàn)結(jié)果表明，TiP/AM60復(fù)合材料的抗拉強(qiáng)度高于AM60鎂合金基體。隨著攪拌速度從300 r/min增加到900 r/min，抗拉強(qiáng)度和伸長(zhǎng)率均先增大后減小。當(dāng)攪拌速度為 600 r/min時(shí)，TiP/AM60復(fù)合材料的抗拉強(qiáng)度和伸長(zhǎng)率分別達(dá)到最大值183 MPa和14.3%。與AM60基體合金相比，復(fù)合材料的抗拉強(qiáng)度提高了15%，延伸率提高了51%。"/>

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TiP/AM60復(fù)合材料的組織與力學(xué)性能
作者:
作者單位:

1.重慶大學(xué) 材料科學(xué)與工程學(xué)院，重慶 400045;2.國(guó)家鎂合金工程技術(shù)研究中心，重慶 400045

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基金項(xiàng)目:

國(guó)家自然科學(xué)基金(No. 52171103),廣東省基礎(chǔ)與應(yīng)用基礎(chǔ)研究重大項(xiàng)目(No. 2020B0301030006),中央高?；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金(No. 2020CDJDPT001),重慶市研究生科研創(chuàng)新基金(Grant No. CYB21001)


Microstructure and Mechanical Properties of TiP/AM60 Composites
Author:
Affiliation:

1.College of Materials Science & Engineering, Chongqing University, Chongqing 400045, China;2.National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400045, China

Fund Project:

National Natural Science Foundation of China (52171103); Guangdong Major Project of Basic and Applied Basic Research (2020B0301030006); Graduate Research and Innovation Foundation of Chongqing, China (CYB21001); Fundamental Research Funds for the Central Universities (2020CDJDPT001)

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    摘要:

    采用超聲振動(dòng)輔助半固態(tài)攪拌法在不同攪拌速度下制備了鈦顆粒增強(qiáng)AM60鎂基復(fù)合材料。顯微組織結(jié)果表明，加入Ti顆粒后，晶粒尺寸增大，Ti顆粒界面處析出Al8Mn5相，Ti顆粒與Mg基體的界面結(jié)構(gòu)為結(jié)合良好的共格界面。拉伸試驗(yàn)結(jié)果表明，TiP/AM60復(fù)合材料的抗拉強(qiáng)度高于AM60鎂合金基體。隨著攪拌速度從300 r/min增加到900 r/min，抗拉強(qiáng)度和伸長(zhǎng)率均先增大后減小。當(dāng)攪拌速度為 600 r/min時(shí)，TiP/AM60復(fù)合材料的抗拉強(qiáng)度和伸長(zhǎng)率分別達(dá)到最大值183 MPa和14.3%。與AM60基體合金相比，復(fù)合材料的抗拉強(qiáng)度提高了15%，延伸率提高了51%。

    Abstract:

    AM60 magnesium alloys reinforced with titanium particles (Tip) were prepared by semi-solid stirring assisted ultrasonic vibration at different stirring speeds. The microstructure results show that the grain size increases after adding Ti particles. The Al8Mn5 phase is precipitated at the interface of Ti particles, and the interface structure between Ti particles and Mg matrix is a coherent interface. The tensile test results show that the strength of TiP/AM60 composites is higher than that of the AM60 matrix. With increasing the stirring speed from 300 r/min to 900 r/min, the UTS and elongation both increase first and then decrease. The UTS and elongation of TiP/AM60 composites reach the maximum of 183 MPa and 14.3%, respectively, when the stirring speed is 600 r/min. The UTS is increased by 15% and elongation is increased by 51% compared with those of the AM60 matrix alloy.

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蒲冬梅,陳先華,葉俊镠,劉春全,趙杰,潘復(fù)生.TiP/AM60復(fù)合材料的組織與力學(xué)性能[J].稀有金屬材料與工程,2022,51(12):4436~4445.[Pu Dongmei, Chen Xianhua, Ye Junliu, Liu Chunquan, Zhao Jie, Pan Fusheng. Microstructure and Mechanical Properties of TiP/AM60 Composites[J]. Rare Metal Materials and Engineering,2022,51(12):4436~4445.]
DOI：10.12442/j. issn.1002-185X.20220131

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  • 收稿日期:2022-02-23
  • 最后修改日期:2022-03-11
  • 錄用日期:2022-03-28
  • 在線發(fā)布日期: 2023-01-11
  • 出版日期: 2022-12-30