Development of Nano and Amorphous Weld for Advanced Structural Materials

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Project title

Code/計畫編號

NSC97-2221-E019-006-MY3

Translated Name/計畫中文名

奈米與非晶微觀結構銲道於先進結構材料應用之開發

Project Coordinator/計畫主持人

Shing-Hoa Wang

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Mechanical and Mechatronic Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=1992251

Year

2010

Start date/計畫起

01-08-2010

Expected Completion/計畫迄

01-07-2011

Bugetid/研究經費

993千元

ResearchField/研究領域

材料科技

"銲接是工程上不可或缺的一環，鑑於一般銲件之銲道金屬及熱影響區機械性質均會異於基材，是為銲接結構件破裂的脆弱位置。不需經銲後熱處理下，研製開發銲接出均勻機械性質銲道之理論與技術，提昇銲道品質與強度是為本研究之目的。本研究將以3 年的時間，以不同奈米微粒為非均質成核起始點觀念，探討誘發奈米或非晶微結構組織的銲道生成的相變態機制，製造出均勻機械性質銲件，改善結構件之強度韌性及壽命。同時並進行世代先進結構材料奈米鋼與塊狀非晶基材，不遭受銲接輸入熱破壞，in-situ 再生奈米或非晶的銲道開發研究。期盼本計畫3 年後對奈米或非晶微結構銲道及其機械性質彼此間均有完整基礎了解，為未來奈米或非晶新結構材料銲接或接合，奠定一個良好的基礎。" "Welding is indispensable in the engineering application. The heterogeneous mechanical properties at the weld metal and the heat affected zone might cause a premature failure of the welds. The purpose of this study is to develop a technique and the theory for producing a uniform mechanical property weld without post-weld heat treatment. The concept of nano particles will be used as the heterogeneous nucleation site to induce the nano grain of solidified microstructure in the weld metal. In the mean time, the study will conduct on the nano particle and amorphous phase in-situ formation in the weld metal during welding for the novel structural materials of nano-steels and bulk metallic glasses. The constitutive equation and numerical simulation will be used to confirm the residual stress measurement and distribution. It is hoped that after three years of intensive research, a better picture on the nano microstructure of the weld metal and its effect on the mechanical property provides a good start for the future development of the bulk nano structure material and the weldment."

Keyword(s)

奈米微觀組織銲道金屬
銲接
nano particle
weld

DSpace CRIS

Development of Nano and Amorphous Weld for Advanced Structural Materials

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