热处理
熱處理
열처리
HEAT TREATMENT
2015年
2期
62-64
,共3页
爆炸焊接%铝%钢界面%纳米晶
爆炸銲接%鋁%鋼界麵%納米晶
폭작한접%려%강계면%납미정
explosive welding%aluminum-steel interface%nanocrystal
采用透射电镜研究了爆炸焊接的铝钢界面钢侧的组织，分析了纳米晶的形成机制。结果表明：由基体向界面方向，焊接的铝钢试样从滑移线及单系孪晶过渡到多系孪晶，晶粒不断碎化；到界面附近，形成等轴状、随机取向的奥氏体及马氏体混合的纳米晶组织。
採用透射電鏡研究瞭爆炸銲接的鋁鋼界麵鋼側的組織，分析瞭納米晶的形成機製。結果錶明：由基體嚮界麵方嚮，銲接的鋁鋼試樣從滑移線及單繫孿晶過渡到多繫孿晶，晶粒不斷碎化；到界麵附近，形成等軸狀、隨機取嚮的奧氏體及馬氏體混閤的納米晶組織。
채용투사전경연구료폭작한접적려강계면강측적조직，분석료납미정적형성궤제。결과표명：유기체향계면방향，한접적려강시양종활이선급단계련정과도도다계련정，정립불단쇄화；도계면부근，형성등축상、수궤취향적오씨체급마씨체혼합적납미정조직。
The microstructure at the steel side of explosively welded aluminum-steel interface was studied by means of TEM,and the formation mechanism of the nanocrystal was analyzed.The results show that from matrix to interface of the explosively welded aluminum-steel sample the slip line and single-system twins develop gradually to multi-system twins,and fragmentation of the grains continuously occurs,and that the nanocrystal structure composed of equiaxed and random oriented both austenite and martensite is formed near the interface.
