金属热处理 ›› 2020, Vol. 45 ›› Issue (4): 128-131.DOI: 10.13251/j.issn.0254-6051.2020.04.026

• 工艺研究 • 上一篇    下一篇

服役温度对TA2/Q235爆炸复合板剪切强度的影响

杨洪波, 王豪, 姚沛文, 刘环, 邵明增   

  1. 西安建筑科技大学 冶金工程学院, 陕西 西安 710055
  • 收稿日期:2019-10-05 出版日期:2020-04-25 发布日期:2020-05-08
  • 作者简介:杨洪波(1980—),女,副教授,硕士,主要从事钢铁材料及爆炸焊接复合材料研究,E-mail:yanghongbo_0413@126.com
  • 基金资助:
    陕西省工业重点攻关项目(Z20190161);陕西省自然科学基础研究计划(2016JM5060)

Effect of service temperature on shear strength of TA2/Q235 explosive composite plate

Yang Hongbo, Wang Hao, Yao Peiwen, Liu Huan, Shao Mingzeng   

  1. School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China
  • Received:2019-10-05 Online:2020-04-25 Published:2020-05-08

摘要: 通过热处理模拟TA2/Q235爆炸复合板服役过程,揭示服役条件对复合板组织及剪切性能的影响规律,探讨剪切损伤机理,明确TA2/Q235服役温度范围。结果表明:服役温度大于200 ℃时,服役温度越高或服役时间越长,TA2/Q235爆炸焊接复合板剪切强度越低;TA2/Q235爆炸焊接复合板高温服役时结合强度降低的主要原因是界面结合区组织的二次再结晶及金属间化合物的进一步长大;TA2/Q235爆炸焊接复合板适合在500 ℃以下长时间服役,500~600 ℃服役时间不能超过7天,若提高该材料服役温度到500 ℃以上,必须严格限制复合板结合界面金属间化合物的形成。

关键词: TA2/Q235复合板, 服役条件, 剪切强度, 二次再结晶, 金属间化合物

Abstract: The service process of TA2/Q235 explosive composite plate was simulated by heat treatment, and the influence of service conditions on the microstructure and shear properties of composite plate was revealed, the mechanism of shear damage was discussed, and the service temperature range of TA2/Q235 is defined. The results show that the higher the service temperature (>200 ℃) or the longer the service time is, the lower the shear strength. The main reasons for the decrease of bonding strength of TA2/Q235 explosive welded composite plate during high temperature service are the secondary recrystallizing of the interface bonding zone, and the further growth of intermetallic compounds. The TA2/Q235 explosive welded composite plate is suitable for long service below 500 ℃, and the service duration can't exceed 7 days at 500-600 ℃. If the service temperature of this material is increased to more than 500 ℃, the formation of intermetallic compounds must be strictly restricted.

Key words: TA2/Q235 composite plate, service temperature, shear strength, secondary recrystallization, intermetallic compound

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