中国激光, 2021, 48 (6): 0602118, 网络出版: 2021-03-06
铝箔的激光温冲击压印工艺及机理研究 
下载： 882次
Technology and Mechanism on Warm Laser Shock Imprinting of Aluminum Foils
图 & 表
图 2. 加载曲线及时间步的确定。(a)加载曲线;(b)变形量-时间曲线
Fig. 2. Loading curve and determination of time steps. (a) Loading curve; (b) deformation versus time
图 3. 不同温度下的WLSI成形高度及形貌。(a)成形高度;(b)150 ℃下的形貌;(c)300 ℃下的形貌
Fig. 3. Forming heights and morphologies of WLSI at different temperatures. (a) Formation height ; (b) morphology at 150 ℃;(c) morphology at 300 ℃
图 4. 不同冲击温度下成形件表面氧的原子数分数及分布。(a)25 ℃;(b)150 ℃;(c)300 ℃
Fig. 4. Atomic fractions and distributions of surface oxygen element of formed part at different impact temperatures. (a) 25 ℃; (b) 150 ℃; (c) 300 ℃
图 5. 不同压印温度下成形件的变形速度和应力图。(a)变形速度; (b)横截面的S33应力曲线;(c)25 ℃下的应力图;(d)150 ℃下的应力图;(e)225 ℃下的应力图;(f)300 ℃下的应力图
Fig. 5. Deformation speeds and stress maps at different imprinting temperatures. (a) Deformation speed; (b) stress curves of cross section (S33); (c) stress map at 25 ℃; (d) stress map at 150 ℃; (e) stress map at 225 ℃; (f) stress map at 300 ℃
图 6. 成形高度和轮廓图。(a)不同冲击次数下的成形高度;(b)连续三次冲击后的轮廓图
Fig. 6. Forming height and contour map. (a) Forming heights at different impact times; (b) contour map after three consecutive impacts
图 7. 多次WLSI后表面氧的原子数分数与分布。(a)1次;(b)2次;(c)3次
Fig. 7. Atomic fractions and distributions of surface oxygen element after multiple WLSI. (a) One time; (b) two times; (c) three times
图 8. WLSI的纳米压痕测试结果。(a)载荷-位移曲线;(b)纳米硬度和弹性模量
Fig. 8. Nano-indentation test results of WLSI. (a) Load-displacement curves; (b) nano-hardness and elastic modulus
图 9. 单次WLSI前后铝箔的TEM显微结构。(a) WLSI前的晶粒形态; (b) WLSI前的低密度位错; (c) WLSI后的高密度位错;(d) WLSI后高密度位错的傅里叶逆变换图;(e) WLSI后的位错胞;(f) WLSI后的亚晶结构
Fig. 9. TEM microstructures of aluminum foil before and after single WLSI. (a) Grain shape before WLSI; (b) low density dislocations before WLSI; (c) high density dislocations after WLSI; (d) inverse Fourier transform graph of high density dislocations after WLSI; (e) dislocation cells after WLSI; (f) sub-grains after WLSI
图 10. 不同冲击次数下的变形速度与应力。(a)一次冲击下的应力图;(b)二次冲击下的应力图;(c)三次冲击下的应力图;(d)横截面的S33应力曲线;(e)变形速度
Fig. 10. Deformation speeds and stresses at different impact times. (a) Stress map after one impact; (b) stress map after two impacts; (c) stress map after three impacts; (d) stress curves of cross section (S33); (e) deformation speed
表 1不同压印温度下成形件的残余应力值
Table1. Residual stress values of formed parts at different imprinting temperatures
|
表 2不同冲击次数下成形件的残余应力值
Table2. Residual stress values of formed parts at different impact times
|
杨海峰, 满家祥, 熊飞, 时明天. 铝箔的激光温冲击压印工艺及机理研究[J]. 中国激光, 2021, 48(6): 0602118. Haifeng Yang, Jiaxiang Man, Fei Xiong, Mingtian Shi. Technology and Mechanism on Warm Laser Shock Imprinting of Aluminum Foils[J]. Chinese Journal of Lasers, 2021, 48(6): 0602118.
PDF全文
