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1200 MPa級高強(qiáng)高韌損傷容限鈦合金強(qiáng)韌性研究進(jìn)展
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作者單位:

1.西北有色金屬研究院，陜西 西安 710016;2.陜西科技大學(xué)，陜西 西安 710021

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基金項目:

中法國際合作項目(2015DFA51430);國家自然科學(xué)基金(52101122,51471136)


Advance in Relationship Between Tensile Strength and Toughness for 1200 MPa High Strength and High Toughness Ti-Alloy with Damage Tolerance
Author:
Affiliation:

1.Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China;2.Shaanxi University of Science and Technology, Xi'an 710021, China

Fund Project:

National International Science and Technology Cooperation Project of China (2015DFA51430); National Natural Science Foundation of China (52101122, 51471136)

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    摘要:

    高強(qiáng)高韌損傷容限鈦合金是高強(qiáng)鈦合金的重要研究方向，本文重點研究、評述了1200 MPa級高強(qiáng)高韌損傷容限鈦合金Ti-5321的拉伸強(qiáng)度與沖擊韌性、斷裂韌性的關(guān)系。Ti-5321合金的微觀組織明顯影響合金的強(qiáng)度和韌性。片層組織具有較好的強(qiáng)度、塑性、斷裂韌性、沖擊韌性匹配，而雙態(tài)組織也有較好的強(qiáng)度、塑性、斷裂韌性匹配，但沖擊韌性低。結(jié)合微觀組織演變分析了強(qiáng)度、斷裂韌性、沖擊韌性的變化規(guī)律，并提出了高強(qiáng)高韌損傷容限鈦合金的研究方向。

    Abstract:

    High strength and high toughness Ti-alloy with damage tolerance is an important research direction of high strength titanium alloy. This work researched and reviewed the relationship among tensile strength, fracture toughness and impact toughness of 1200 MPa high strength and high toughness Ti-5321 alloy with damage tolerance. Microstructure greatly affects the tensile strength, fracture toughness and impact toughness. Lamella microstructure has good matching among tensile strength, plasticity, fracture toughness and impact toughness. Bimodal microstructure also has good matching among tensile strength, plasticity and fracture toughness, while its impact toughness is low. Based on the microstructure evolution, the changing laws of tensile strength, fracture toughness and impact toughness were analyzed. The future research direction for high strength and high toughness Ti-alloy with damage tolerance was proposed.

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引用本文

趙永慶,吳聰,王歡.1200 MPa級高強(qiáng)高韌損傷容限鈦合金強(qiáng)韌性研究進(jìn)展[J].稀有金屬材料與工程,2022,51(12):4389~4397.[Zhao Yongqing, Wu Cong, Wang Huan. Advance in Relationship Between Tensile Strength and Toughness for 1200 MPa High Strength and High Toughness Ti-Alloy with Damage Tolerance[J]. Rare Metal Materials and Engineering,2022,51(12):4389~4397.]
DOI：10.12442/j. issn.1002-185X. E20220033

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歷史
  • 收稿日期:2022-10-26
  • 最后修改日期:2022-10-26
  • 錄用日期:2022-10-27
  • 在線發(fā)布日期: 2023-01-11
  • 出版日期: 2022-12-30