TiNiNb合金的空蚀

Cavitation Erosion of TiNiNb Alloy

摘要:

利用旋转圆盘装置研究TiFiNiNb合金和0Crl3Ni5Mo不锈钢的空蚀行为，并用洛氏硬度仪模拟空蚀过程中微射流所产生的局部载荷对TiNiNb合金和0Cr13Ni5Mo不锈钢的作用，结果表明，TiNiNb合金的抗空蚀性能优于0Crl3Ni5Mo。在压痕试验中，TiNiNb合金能吸收高于0CI13Ni5Mo的弹性能，该性能特点使TiNiNb合金在空蚀过程中能吸收和释放较多的冲击能量，减少损失，呈现良好的抗空蚀性能。

Abstract:

The cavitat io n erosion of TiNiNb alloy and 0Cr13Ni5Mo stainless steel wa s investigated u sing rotating disc e quipment.To simulate the effect of the collapse of vapor c a vities or bubbles,a Rockwell hardness tester was used to exert a load on th e surface areas of the alloys.The results show that the cavitation ero sion resi stance of TiNiNb is greater than that of 0Cr13Ni5Mo.The TiNiNb a lloy is mo re elastic than0Cr13Ni5Mo stainless steel in the in dentation test,thereby permitting TiNiNb to absorb and relieve more imp act energy during cavitation er osion.This reduces volume loss,a nd leads to excellent cavitations erosion res istance.