The quantitative lead was added into the sample solution to let the concentration come up to be in the interval range suitable for determining by the spectrophotometry of arsenazo Ⅲ, which was used to determine lead in the Babbitt alloy.

Babbitt alloy is difficult to adapt higher temperature due to its low softening point.

The types of Hastelloy alloy and anti - corrosion property are introduced, and the related precautions are also presented from the aspects of design, formation, welding and machining etc.

This paper summarized various Hastelloy,and introduces particularly Hastelloy B and Hastelloy C which are often used in corrosion resisting valves production.

The properties, characteristics and application of Hastelloy C-276 and C-4 widely used in new processes were particularly described.

The domestic vessel heads made of the exploded metal clad plates of B-3/304 hastelloy is less than developed countries because of the complicacy of fabrication.

The thorough analysis was made on adhesive failure and cracking in the surface of Babbitt bush.

The micro-structure and preparing processes of modified Babbitt alloy were designed by axiom de- sign theory.

A simulative bearing tester was employed to investigate the in situ generation of self-reconditioning layer on worn 45~# steel surface rubbed against Babbit alloy under designed tribological conditions,and its tribological behaviors.

The chemical composition analysis,the metallurgical structure analysis,The XRD analysis and the X-ray energy spectrum analysis were accomplished for the peeled babbit alloy.

A thrust bearing bush with elastically metallic plastics as a substitute for babbit alloy was used for the structure imrovement in the main motor.