Effects of laser brazing parameters on microstructure and properties of TiNi shape memory alloy and stainless steel joint

Li, M.G.; Sun, Dongbai; Qiu, Xiaoming; Yin, Siqi

doi:10.1016/j.msea.2006.01.054

Cited by 37 publications

(10 citation statements)

References 8 publications

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“…The different phases of the same intermetallic compound are related to the heating and cooling of the filler wire during the welding, and similar result was presented in Ref. [18]. In the DSAW process, the crystallization of liquid filler wire was under non-equilibrium conditions, the heating and cooling of the filler wire was resulted in at the topside, and the formation of larger grain occurred in the weld.…”

Section: Microstructure and Phase Identificationsupporting

confidence: 74%

Joint Characteristics and Corrosion Properties of Bypass-Current Double-Sided Arc-Welded Aluminum 6061 Alloy with Al–Si Filler Metal

Miao

Zhang

et al. 2016

Acta Metall. Sin. (Engl. Lett.)

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Sheets of aluminum 6061 alloy were welded using bypass-current double-sided arc welding with Al-Si filler wire to investigate the effect of Al-Si intermetallic compounds on the microstructure, microhardness and corrosion behavior of weld joint. Experimental results indicated that the Al 4.5 FeSi phase in the topside of the weld joint was finer than that in the backside and newly formed phase of Al 0.5 Fe 3 Si 0.5 was observed in the backside. The formation of reinforcing phases of Al-Fe-Si in the weld improved the microhardness of the weld by about 18%. The corrosion resistance of the weld zone was greater than that of the base metal, while the corrosion current displayed opposite, and the corrosion resistance of the weld region was better than that of the base metal.

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Section: Microstructure and Phase Identificationsupporting

confidence: 74%

Joint Characteristics and Corrosion Properties of Bypass-Current Double-Sided Arc-Welded Aluminum 6061 Alloy with Al–Si Filler Metal

Miao

Zhang

et al. 2016

Acta Metall. Sin. (Engl. Lett.)

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“…From the available literature on dissimilar brazed joints, the NiTi/stainless steel combination using Ag-based braze alloys is the most studied [100,[104][105][106]. Li and his co-workers [104,106] analysed the effect of brazing parameters on the microstructure and mechanical properties of NiTi/stainless steels joints brazed by laser using Ag-based (Ag-Cu-Zn-Sn) filler material.…”

Section: Brazing and Solderingmentioning

confidence: 99%

“…Li and his co-workers [104,106] analysed the effect of brazing parameters on the microstructure and mechanical properties of NiTi/stainless steels joints brazed by laser using Ag-based (Ag-Cu-Zn-Sn) filler material. Good wettability of the braze alloy with both base materials was observed, as shown in Fig.…”

Section: Brazing and Solderingmentioning

confidence: 99%

Welding and Joining of NiTi Shape Memory Alloys: A Review

Oliveira

Miranda

Fernandes

2017

Progress in Materials Science

285

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“…The route by which solidification can be achieved, can involve up to four related phenomena. These are diffusion into the joint metals, intermetallic formation, evaporation and extrusion [9,10]. The kinetics of TLP bonding is dependent on the rate of removal of the MPD from the interlayer.…”

Section: Macroscopic Aspectsmentioning

confidence: 99%

Macroscopic and Microscopic Aspects Observed in Composite Processing For Shape Memory Alloy

Rabeeh

2010

The International Conference on Applied Mechanics and Mechanica

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Brass-Al-Brass foils hot isostatically pressed, HIPPed, at solid state for lamellar composite processing.However, it resolves lamellar composite structures, macroscopic and microscopic evidence of shape memory, SMA, alloys are established. The arrangement and architectural behavior of metal matrix composite introduced, however it has a potential effect on the final structure. Ply number as well as design assembly are dominant for either lamellar metal matrix composite or delocalized shape memory alloy embedded within composite structure. This phenomenon is rarely observed in lamellar composite processing or in Cu Zn Al SMA. The macrostructurall analysis performed on the HIPPed structures showed the possibilities for the application of this technique in copper based shape memory alloy. Microstructural observations resolved not only a good interface for bulk joints, but dominant zone of interest ( clear interphase, copper inriched zones, aluminum inriched zones as well as copper-zinc-alumin shape memory ply). Parametric study of a hot isostatic pressing approach in a solid state processing is conducted for the assessment of a new emerging Cu-Zn-Al shape memory alloy delocalized and embedded within lamellar structure. The interphase kinetic of Cu-Zn-Al metal matrix composite as well as effect of alloying elements on composite processing are introduced. Microstructure characterization established with scanning electron microscopy and energy dispersive X-ray spectroscopy, EDX. The results showed that very regular delocalized enriched zones of interests could be obtained in a composite having an interphase morphology and relative percent of alloying elements. Microstructural and compositional analyses on composite specimens showed symmetrical and uniform delocalized microstructure. In this way the possibility of formation of Cu-Zn-Al system either with or without lamellar composite structure processing through the proposed low-cost process is clearly demonstrated. This alloy is produced through a recently proposed HIPing process, which consists mainly of a controlled lamellar architecture in a solid state processing.

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Effects of laser brazing parameters on microstructure and properties of TiNi shape memory alloy and stainless steel joint

Cited by 37 publications

References 8 publications

Joint Characteristics and Corrosion Properties of Bypass-Current Double-Sided Arc-Welded Aluminum 6061 Alloy with Al–Si Filler Metal

Joint Characteristics and Corrosion Properties of Bypass-Current Double-Sided Arc-Welded Aluminum 6061 Alloy with Al–Si Filler Metal

Welding and Joining of NiTi Shape Memory Alloys: A Review

Macroscopic and Microscopic Aspects Observed in Composite Processing For Shape Memory Alloy

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