4C3生成,并生成TiC增強(qiáng)相以及條狀TiAl3；焊縫區(qū)為等軸晶組織,熔合區(qū)為柱狀晶組織,熱影響區(qū)組織變化不明顯；隨著激光功率的增加接頭的電阻率呈現(xiàn)出增加的趨勢,并明顯高于母材；在554W時接頭的抗拉強(qiáng)度可達(dá)196.98MPa,是母材強(qiáng)度的54.71%。接頭斷口中幾乎沒有氣孔,韌窩中的第二相粒子以TiC為主,接頭呈現(xiàn)出以脆性斷裂為主的脆-韌性混合斷裂特征。"/>

最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
基于Ti中間層的SiCp/6061-T6Al MMCs低功率激光-TIG復(fù)合焊組織與性能
作者:
作者單位:

1.河南理工大學(xué)材料科學(xué)與工程學(xué)院;2.河南理工大學(xué)材料科學(xué)與工程學(xué)院，哈爾濱工業(yè)大學(xué)先進(jìn)焊接與連接國家重點(diǎn)實(shí)驗(yàn)室;3.河南晶泰航空航天高新材料科技有限公司

作者簡介:

通訊作者:

中圖分類號:

中圖法分類號： TG442

基金項(xiàng)目:

河南省重點(diǎn)創(chuàng)新示范專項(xiàng)項(xiàng)目(項(xiàng)目號191110211800);河南省高?；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金資助項(xiàng)目(項(xiàng)目號NSFRF180405);河南省科技攻關(guān)項(xiàng)目(項(xiàng)目號202102210036);


Microstructure and properties of SiCp/6061-T6Al MMCs low-power laser-TIG hybrid welding based on Ti intermediate layer
Author:
Affiliation:

1.School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo;2.Henan Jingtai High-Nover Materials Ltdof Sicience and Technology,Jiaozuo

Fund Project:

Henan Province Key Innovation Demonstration Special Project (191110211800); Henan Province University Basic Scientific Research Business Expenses Special Funding Project (NSFRF180405); Henan Province Science and Technology Research Project (202102210036)

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    以0.1mm厚的Ti箔做中間夾層,使用低功率激光-TIG復(fù)合焊的方式對SiCp/6061-T6Al MMCs 進(jìn)行焊接,并對接頭的宏觀形貌、顯微組織、物相、電阻率、抗拉強(qiáng)度及斷口形貌進(jìn)行分析。結(jié)果表明：激光功率對焊縫的成形有著較大影響；Ti箔的加入基本抑制了焊縫中針狀A(yù)l4C3生成,并生成TiC增強(qiáng)相以及條狀TiAl3；焊縫區(qū)為等軸晶組織,熔合區(qū)為柱狀晶組織,熱影響區(qū)組織變化不明顯；隨著激光功率的增加接頭的電阻率呈現(xiàn)出增加的趨勢,并明顯高于母材；在554W時接頭的抗拉強(qiáng)度可達(dá)196.98MPa,是母材強(qiáng)度的54.71%。接頭斷口中幾乎沒有氣孔,韌窩中的第二相粒子以TiC為主,接頭呈現(xiàn)出以脆性斷裂為主的脆-韌性混合斷裂特征。

    Abstract:

    Abstract: Using Ti foil with thickness of 0.1 mm as the interlayer, SiCp/6061-T6 Al MMCs was welded by employing low-power laser-TIG hybrid welding. After welding experiment, the macro morphology, microstructure, phase, resistivity, tensile strength and fracture morphology of the joint were analyzed. The results showed that laser power had significant influence on the formability of welding seam. Ti foil can basically suppress the formation of needle-like Al4C3 in weld seam. Meanwhile, some new phases such as TiC reinforcement phase and strip-like TiAl3 were generated in welding seam. The morphology of weld zone and fusion zone were characterized by equiaxed crystal and columnar crystal, respectively. The microstructure in heat-affected zone did not change obviously. The joint resistivity increased with the increasing of laser power and the value of joint resistivity was significantly higher than that in base material. The joint tensile strength achieved 196.98 MPa, which was equal to 54.71% of base material, when laser power of 554 W was applied. There were almost no pores in joint fracture and the second phase particle in dimple was mainly composed of TiC. The joint displayed the characteristics of brittle-ductile mixed fracture which was dominated by brittle fracture.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

巴現(xiàn)禮,高增,王振江,邱得超,牛濟(jì)泰,邱玉潔.基于Ti中間層的SiCp/6061-T6Al MMCs低功率激光-TIG復(fù)合焊組織與性能[J].稀有金屬材料與工程,2021,50(10):3657~3663.[Ba Xianli, Gao Zeng, Wang Zhenjiang, Qiu Dechao, Niu Jitai, Qiu Yujie. Microstructure and properties of SiCp/6061-T6Al MMCs low-power laser-TIG hybrid welding based on Ti intermediate layer[J]. Rare Metal Materials and Engineering,2021,50(10):3657~3663.]
DOI：10.12442/j. issn.1002-185X.20200671

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2020-09-04
  • 最后修改日期:2020-11-26
  • 錄用日期:2020-11-30
  • 在線發(fā)布日期: 2021-10-28
  • 出版日期: 2021-10-25