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Effects of Surface Roughness on interface bonding performance for 316H Stainless Steel in Hot-Compression bonding

Acta Metallurgica Sinica(English Letters) 2023年第5期36卷 771-788页

作者： Yong Zhao Bi-Jun Xie Jin-Long Zhang Qin-Qiang Wang Bin Xu Jiang Guo Zhu-Ji Jin Ren-Ke Kang Dian-Zhong Li Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education Dalian University of TechnologyDalian116024China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang110016China

The metallurgical bonding quality of bonding joints is affected by the substrate surface state in hot-compression bonding(HCB),and the surface roughness is a core indicator of the surface ***,the effects of surface roughness on interface bonding performance(IBP)in the HCB process are unclear for substrates with refractory oxide *** study presents the effects of surface roughness on IBP for 316H stainless steel joints fabricated by HCB.A set of HCB parameters for interface bonding critical state of 316H stainless steel joints was *** HCB experiments were carried out under parameters of interface bonding critical state to amplify the effect of surface *** interface morphologies,element distribution,and tensile properties were used to characterize the *** a result,the formation mechanisms of the interface pits were revealed and the variation trend of pit number with the roughness was ***,the mapping relation between surface roughness and IBP was *** results show that the degree of rotational dynamic recrystallization becomes weaker with the decrease in the surface roughness and the interface bonding mechanism is completely transformed into discontinuous dynamic recrystallization when the roughness is lower than 0.020μm *** number of interfacial pits decreases as the roughness decreases owing to the weakening of oxide scale aggregation and abrasive inclusion *** elongation of the tensile specimen cannot increase significantly while the roughness is lower than 0.698μm Sa.

关键词： Surface roughness interface bonding performance Hot-compression bonding Mapping relation Critical state

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The effects of annealing treatment temperatures on mechanical performance of aluminum-coated magnesium composite plates

The effects of annealing treatment temperatures on mechanica...

引用

2012 China Functional Materials Technology and Industry Forum

作者： Jin-wei WANG Xian-quan JIANG Jie LI School of Materials Science and Technology Southwest University ChongQing Academy of Science and Technology

Aluminum-coated magnesium composite plates were fabricated by clad-rolling,then diffusion annealing treated at 200℃,250℃,300℃,350℃for *** mechanical performance of aluminum-coated magnesium composite plates was investigated by the test of tensile *** best tensile strength and elongation was found at 250℃,148.3Mpa and 6.48%.The changes of microstructure were investigated by metallographic microscope and scanning electronic microscope. It was found that the interface intermetallic compounds generated great influence to the interface bonding performance because of its brittleness and thickness.

关键词： Rolling Aluminum-coated magnesium composite plates annealing treatment temperatures Mechanical performance interface bonding performance

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