研究激光退火对Inconel 718时效合金的显微组织和硬度的影响.一台2.5 kW的CO2激光机被用来照射试样的表面.在激光能作用下,试样表面层被加热后空冷.通过控制激光工艺参数,在表面不发生熔化的前提下,能够使一定厚度表面层内的硬度降低到标准退火合金的水平,而不影响试样内部母材的硬度.显微组织观察显示表面层的基体强化相(γ"和γ')在激光照射过程中被固溶,而其它二次相没有变化.γ"和γ'的固溶被确定是表面层硬度下降的原因.在其它试验条件不变时,确立了退火层生成时由激光散焦距离和扫描速度描述的工艺参数范围.
参考文献
| [1] | Paulonis D F;Oblak J M;Duvall D S .[J].ASME Transactions,1969,62:611. |
| [2] | Oblak J M;Paulonis D F;Duvall D S .[J].Metallurgical and Materials Transactions,1974,5:143. |
| [3] | Han Yafang;Deb P;Chaturvedi M C .[J].Metal Science Journal,1982,16:555. |
| [4] | Walter R J;Jewett R P;Chandler W T .[J].Materials Science and Engineering,1969,70(05):98. |
| [5] | Walter R J;Chandler W T .[J].Materials Science and Engineering,1971,8:90. |
| [6] | Fukuyama S;Yokogawa K;Araki M et al.[J].Journal of the Society of Materials Science Japan,1991,40:736. |
| [7] | Fukuyama S;Yokogawa K;Yamada Y et al.[J].TETSU TO HAGANE-Journal OF THE IRON AND STEEL INSTITUTE OF JAPAN,1992,78:860. |
| [8] | He J;Fukuyama S;Yokogawa K;Kimura A .[J].Materials Transactions,1994,35:689. |
| [9] | Akio Hirose;Yoshihiro Arita;Yasumasa Nakanishi et al.[J].Materials Science and Engineering A,1996,A219:71. |
| [10] | Hicks P D;Altstetter C J .[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1990,21A:365. |
| [11] | Hicks P D;Altstetter C J .[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1992,23A:237. |
| [12] | Fournier L;Delafosse D;Magnin T .[J].Materials Science and Engineering A,1999,269A:111. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%