Cylinders made of tantalum (Ta) and tubes 304 stainless steel (304SS) were successfully joined by laser welding under different offsets. The experimental results indicated that satisfactory weld formations obtained. fusion zone (FZ) was found to consist the Fe–Cr solution Fe2Ta phase. In addition, intermetallic compounds (IMCs) layer generated at Ta/FZ interface. When beam offset − 0.2 mm (0.2 ...

Usually, when letters arrive by the now old-fashioned method of snail-mail, I look forward to opening the envelopes, enjoying the fact that I can still look forward to receiving messages and communications in a more traditional manner, without knowing the title, subject or mail addresses of the senders. Coupled with this is the fact that getting letters delivered to you personally, brings an ai...

In this paper, the results of imaging experinents with the interfacial region~ of representative solid material joints, ~1ng a transmission-type scanning acoustic microscope operating at 150 HHz, are reported. Voids and flaws in specially made joints as well as production-line silicon solder bonds (die bonded headera' have been detected using the transmission~de of operation of the microscope. ...