摘要
通过调整ＦｅＣｒＮｉ激光熔覆合金中Ｃｒｅｑ／Ｎｉｅｑ，研究了Ｃｒｅｑ／Ｎｉｅｑ对熔覆层组织和开裂敏感性的影响。研究表明，随合金中Ｃｒｅｑ／Ｎｉｅｑ的增加，熔覆层组织将出现δＦｅ，并逐渐增加；而δＦｅ含量与熔覆层的开裂敏感性有关。
The crack of laser claded alloy also is a trouble thing in laser welding technique.In our study,we use the crackle density to indicate the crack susceptibility.It is shown that the Cr eq /Ni eq composition has significant effect on the structure and the crack susceptibility of laser clad Fe Cr Ni coating.With the increasing of Cr eq /Ni eq composition,the δ Fe composition appears and becomes more and more,and the microstructure of the laser clad alloy changes.The crack susceptibility of the alloy is the lowest when Cr eq /Ni eq composition is about 1.5 and δ Fe composition is in the range of 5%～8%
出处
《激光技术》
CAS
CSCD
北大核心
1999年第3期142-145,共4页
Laser Technology
基金
湖北省自然科学基金
