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熱處理對(duì)鋯-鈦-鋼復(fù)合板力學(xué)性能及顯微組織的影響
作者:
作者單位:

1.南京工業(yè)大學(xué);2.南京市鍋爐壓力容器檢驗(yàn)研究院

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基金項(xiàng)目:

國家自然科學(xué)基金（51475223,51675260）；江蘇省質(zhì)監(jiān)局科技項(xiàng)目 (KJ168359)；江蘇省研究生科研與實(shí)踐創(chuàng)新計(jì)劃項(xiàng)目（KYCX18_1091）；


Effect of heat treatment on the mechanical properties and microstructure of zirconium-titanium-steel composite plate
Author:
Affiliation:

1.Nanjing Tech University;2.Nanjing Boiler and Pressure Vessel Inspection Institute

Fund Project:

National Natural Science Foundation of China (51475223, 51675260), Science-Technology Foundation of Jiangsu Bureau of Quality and Technical Supervision (KJ168359), Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX18_1091).

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    摘要:

    為了獲得更好的鋯-鈦-鋼復(fù)合板的綜合性能，研究了熱處理對(duì)鋯-鈦-鋼復(fù)合板的影響。通過對(duì)鋯-鈦-鋼界面的剪切強(qiáng)度試驗(yàn)分析，發(fā)現(xiàn)剪切強(qiáng)度隨熱處理溫度的降低而減小。垂直于波紋方向的抗剪強(qiáng)度高于平行于波紋方向的抗剪強(qiáng)度?；谡辉囼?yàn)和方法分析，熱處理因素對(duì)剪切強(qiáng)度和粘接強(qiáng)度的影響主次關(guān)系是：保溫溫度＞保溫時(shí)間＞溫度變化率。剪切試驗(yàn)的斷口形貌為局部脆性斷裂的韌性斷裂。通過對(duì)力學(xué)性能、界面組織和顯微硬度的分析，500℃+2H＋60℃/h，540℃+1H＋60℃/h的熱處理均為合適的熱處理工藝。隨著保溫溫度的升高，晶粒變粗，界面富集元素富集區(qū)和擴(kuò)散區(qū)，形成脆性金屬間化合物FeTi。界面的顯微硬度隨熱處理溫度的升高而降低。

    Abstract:

    In order to obtain better comprehensive performances of Zr/Ti/steel composite plate, the effect of heat treatment on Zr/Ti/steel composite plate was investigated. Based on shear test analysis of titanium-steel interface, the trend that shear strength decreases along with the heat treatment temperature has been found. Besides, the shear strength of vertical to wave direction is higher than that of parallel to wave direction. Based on orthogonal test and variance analysis, it was found out that the significance of heat treatment on shear strength and bonding strength is that: holding temperature > holding time > temperature change rate. The fracture appearance of shear specimen is ductile fracture including local brittle fracture. The heat treatments of 500℃+2h+60℃/h and 540℃+1h+60℃/h are both appropriate heat treatment processes through the analysis of microstructure and micro-hardness on interface. With the holding temperature increasing, the grains become coarsening and the brittle intermetallic compounds-FeTi is formed. The micro-hardness of interface drops along with the increase of heat treatment temperature.

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引用本文

周彬彬,業(yè)成,張伯君,李建,常樂,周昌玉.熱處理對(duì)鋯-鈦-鋼復(fù)合板力學(xué)性能及顯微組織的影響[J].稀有金屬材料與工程,2020,49(1):59~67.[BinBin Zhou, Cheng Ye, BoJun Zhang, Jian Li, Le Chang, ChangYu Zhou. Effect of heat treatment on the mechanical properties and microstructure of zirconium-titanium-steel composite plate[J]. Rare Metal Materials and Engineering,2020,49(1):59~67.]
DOI：10.12442/j. issn.1002-185X.20180849

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  • 收稿日期:2018-08-08
  • 最后修改日期:2018-08-29
  • 錄用日期:2018-10-08
  • 在線發(fā)布日期: 2020-02-16
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