Tsis ntev los no, ib pab neeg tshawb fawb Yang Shanglu los ntawm Shanghai lub koom haum ntawm Optics thiab Precision Machinery (SIPM), Suav Academy ntawm Sciences (CAS), R & D Center ntawm Laser Intelligent Manufacturing Technology, tau ua tshiab kev vam meej nyob rau hauv laser welding ntawm tshiab structural ntaub ntawv rau high-qib. kub molten ntsev. Thawj thawj zaug, pab neeg no tau paub txog qhov tsis muaj qhov tsis zoo ntawm cov nickel-raws li kub-txias alloys siv lub zog hluav taws xob laser, thiab ntsuas qhov microstructure thiab mechanical zog ntawm cov pob qij txha welded. Cov kev tshawb fawb tau luam tawm nyob rau hauv phau ntawv journal "Laser welding ntawm GH3539 alloy rau molten ntsev reactor: ua optimization, microstructure thiab mechanical zog". Cov txiaj ntsig kev tshawb fawb tau luam tawm hauv Cov Khoom Siv Cim Cim raws li lub npe ntawm "Laser vuam ntawm GH3539 alloy rau molten ntsev reactor: kev ua kom zoo dua qub, microstructure thiab cov khoom siv kho tshuab".
GH3539 alloy yog ib hom tshiab ntawm high-kub npib tsib xee-raws li alloy ntawm nws tus kheej tsim los ntawm Tuam Tshoj, uas muaj zoo heev kub-kub txhua yam thiab corrosion-resistant zog, thiab yog haum rau ultra-siab kub (siab tshaj los yog sib npaug rau 850 degree) molten ntsev ib puag ncig. Txawm li cas los xij, qhov ntau dua alloying ua rau cov hlau muaj qhov siab dua rau kev sib tsoo. Txhawm rau kom ua tiav kev ua haujlwm siab thiab zoo laser vuam ntawm cov khoom siv hlau alloy, pab pawg siv fiber ntau laser vuam tshuab los kawm txog cov txiaj ntsig ntawm cov txheej txheem vuam sib txawv ntawm cov vuam ntawm 3 hli phaj thickness GH3539 alloy, los ntawm cov txheej txheem optimization los inhibit tiam ntawm weld tawg, porosity thiab lwm yam tsis xws luag, thawj zaug kom ua tiav cov GH3539 alloy flawless weld shaping, nyob rau hauv lub hauv paus ntawm cov welded pob qij txha ntawm lub microstructure thiab chav tsev kub / siab kub nyob rau hauv lub hauv paus no, lub microstructure thiab chav tsev kub / siab kub. mechanical zog ntawm cov pob qij txha welded raug soj ntsuam systematically; thiab tus cwj pwm tensile tawg ntawm lub laser-welded pob qij txha tau soj ntsuam, uas elucidated hom tawg ntawm lub laser-welded pob qij txha. Qhov kev ua haujlwm no tsim lub hauv paus rau kev txhawb nqa kev txhim kho ntawm laser vuam tshuab ntawm GH3539 npib tsib xee-raws li kub-kub alloy thiab daim ntawv thov ntawm cov hlau.
Txoj haujlwm no tau txais kev txhawb nqa los ntawm Cov Hluas Fund ntawm National Natural Science Foundation ntawm Tuam Tshoj thiab National Key Research thiab Development Program ntawm Tuam Tshoj.
Daim duab 1: (a) Welded cross-section ntawm GH3539 laser welded pob qij txha; (b) Microstructure ntawm GH3539 alloy; (c) XRD cov txiaj ntsig ntawm GH3539 alloy laser welded pob qij txha; (d) Hardness faib ntawm GH3539 alloy laser welded pob qij txha; (e) Engineering stress-strain curves ntawm lub hauv paus khoom thiab welded pob qij txha ntawm qhov sib txawv kub; (f) Qhov nruab nrab kev ntxhov siab-strain nkhaus ntawm cov khoom siv hauv paus thiab welded pob qij txha ntawm qhov sib txawv. (f) Nruab nrab elongation ntawm cov khoom siv hauv paus thiab welded pob qij txha ntawm qhov sib txawv ntawm qhov kub thiab txias.
