Ntsiab lus:Ti-6Al-4V titanium alloy/ laser vuam / microstructure / mechanical zog
Sau: Fu Heguo, Liu Guangxin, Xie Hongzhi, Jiang Wentong, thiab lwm yam
Shenyang Aircraft Industry Group Co., Ltd
Source: vuam thiab txiav
Paub meej: qhov kev sim ntawm laser vuam ntxiv rau qhov chaw hloov kho vuam ntawm 1.5 hliTi-6Al-4V titanium alloy was carried out, and the microstructure and static properties of the joint were observed. The results show that due to the influence of different welding thermal cycles, The structure area of laser welding plus surface modification welding joint can be divided into a base metal area, heat affected area, equiaxed crystal area at the bottom of weld, and columnar crystal area at the top of the weld, there is widmanstatten structure in the weld structure, With the increase of the distance from the fusion line, the microstructure of the heat-affected zone increases ' The volume fraction decreased gradually.
Cov khoom siv kho tshuab ntawm kev sib koom ua ke qhia tias lub zog tensile thiab shear lub zog sib npaug ntawm cov hlau hauv paus, thiab lub kaum sab xis qis kawg yog 35 degree, qhia tias kev sib koom ua ke tuaj yeem siv rau hauv engineering.
Morphology ntawm Ti-6Al-4V titanium alloy weld ob leeg
Microstructure ntawm weld cheeb tsam
Microstructure morphology ntawm cov cheeb tsam sib txawv hauv cheeb tsam kub cuam tshuam
Kev ntsuas tus nqi ntawm cov khoom siv sib xyaw ua ke
Qauv nab npawb | Tensile zog / Mpa | Shear zog / Mpa | Transverse dabtsi yog khoov / () | Longitudinal dabtsi yog khoov / () |
1 | 985 | 699 | 36 | 36 |
2 | 1000 | 682 | 35 | 38 |
3 | 990 | 763 | 35 | 37 |
4 | 990 | 713 | 36 | 36 |
5 | 1000 | 724 | 35 | 38 |
Qhov nruab nrab tus nqi ntawm txhua yam khoom ntawm kev sib koom ua ke
