Effects of Cr2O3 active agent on the weld process dynamic behavior and joint comprehensive properties of fiber laser welded stainless steel thick plate

Mei, Lifang; Yan, Dongbing; Xie, Shuifen; Lei, Zhiqin; Xia, Ge

doi:10.1016/j.optlaseng.2020.106027

Cited by 19 publications

(2 citation statements)

References 21 publications

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“…In current industry and lab production of amorphous alloy, bulks of MG or MGC are difficult to obtained restrained by the need of extremely large cooling speed during solidification [1,2,9], which consequently limits the manufacturing of parts made from MG or MGC. So, welding can be an effective and dominative way to solve this problem [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Butt welding of TiZrMoCuBe MGC/TC4 titanium alloy using a pulsed Nd:YAG laser

Chen

Liu

et al. 2022

Science and Technology of Welding and Joining

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β-Ti dendrite toughened metal glass composite and TC4 titanium alloy were butt welded by a pulsed laser. Microstructures and mechanical properties of the welded joint were specially studied. Results show that microstructure in the fusion zone is uneven, and mainly consists of dendritical β-Ti grains (in nanometre or micron scales) and amorphous alloy background. Special chemical compositions of base materials, shocking effect from laser pulses and large cooling speed during welding directly restrain the development of crystal β-Ti grain in the fusion zone. Hardness in the fusion zone ranges from 500 HV to more than 600 HV. During tensile tests, all the welded joints fracture on TC4 titanium alloy base material side.

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Section: Introductionmentioning

confidence: 99%

Butt welding of TiZrMoCuBe MGC/TC4 titanium alloy using a pulsed Nd:YAG laser

Chen

Liu

et al. 2022

Science and Technology of Welding and Joining

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“…Similarly, TiO 2 thin layers form on the surface of titanium, enhancing its biocompatibility for medical purposes 12 . Studies also show that the formation of thin metal oxide surfaces enhances binding to other metals and insulating polymers through welding or irradiation of the surface [11][12][13][14][15] . Here, we show the role of the reactivity of these thin metal oxide films to chemically bind with TFE.In the following, we present results of our study on the adsorption of tetrafluoroethylene (TFE) on TiO 2 (110) and Cr 2 O 3 (0001).…”

mentioning

confidence: 99%

Defluorination and adsorption of tetrafluoroethylene (TFE) on TiO2(110) and Cr2O3(0001)

Gueriba

Salehuddin

Diño

et al. 2021

Sci Rep

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Here, we show that metal oxide surfaces catalyze the formation of intermediate defluorinated tetrafluoroethylene (TFE) radicals, resulting in enhanced binding on the corresponding metal oxide surfaces. We attribute the preferential adsorption and radical formation of TFE on Cr2O3(0001) relative to TiO2(110) to the low oxygen coordination of Cr surface atoms. This hints at a possible dependence of the TFE binding strength to the surface stoichiometry of metal-oxide surfaces.

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