دوره 14، شماره 27 - ( 4-1397 )                   جلد 14 شماره 27 صفحات 21-33 | برگشت به فهرست نسخه ها

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Hasanniah A, Movahedi M. Role of Aluminum Interlayer and Heat-Input in Lap Joint Properties of Aluminum to Steel Using Pulsed Gas Tungsten Arc Welding. Journal Of Marine Engineering. 2018; 14 (27) :21-33
URL: http://marine-eng.ir/article-1-649-fa.html
حسن نیاه عباس، موحدی مجتبی. نقش لایه واسط آلومینیوم و حرارت ورودی بر خواص اتصال لبه روی هم آلومینیوم به فولاد با فرآیند جوشکاری قوسی الکترود تنگستنی-گاز با جریان پالسی. مهندسی دریا. 1397; 14 (27) :21-33

URL: http://marine-eng.ir/article-1-649-fa.html


دانشگاه صنعتی شریف
چکیده:   (242 مشاهده)
اثر لایه واسط آلومینیوم و حرارت ورودی بر خواص اتصال لبه ‌روی هم آلیاژ آلومینیوم 5052 به فولاد 12-St با استفاده از فرآیند GTAW با جریان پالسی و فلز پرکننده 4047-ER بررسی شد. اتصال مستقیم ورق‌های آلومینیوم به فولاد بدون لایه واسط به دلیل تشکیل فازهای بین‌فلزی ترد امکان‌پذیر نبود. حضور لایه واسط آلومینیوم سبب کاهش ترکیبات بین‌فلزی (با ضخامت کم‌تر ازµm  3) و ایجاد جوش‌های بدون عیب با حداکثر استحکام کششیMPa  200~ شد. دو نوع آزمون کشش-برش (با تمرکز تنش برشی در فصل مشترک ورق فولاد/لایه واسط و فصل مشترک لایه واسط/ورق آلومینیوم 5052) برای ارزیابی استحکام اتصال استفاده شد. در هر دو حالت آزمون، شکست از داخل فلز جوش اتفاق افتاد. استحکام جوش با افزایش حرارت ورودی کاهش یافت. این نتیجه با توجه به تغییرات فاصله بازوهای اولیه دندریتی فاز α و توزیع فازهای یوتکتیک‌‌ Al-Si در فضای بین‌دندریتی تحلیل شد.
متن کامل [PDF 1904 kb]   (54 دریافت)    
نوع مطالعه: مقاله پژوهشي | موضوع مقاله: Ship Structure
دریافت: ۱۳۹۶/۹/۲۴ | پذیرش: ۱۳۹۷/۳/۲۳

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