-- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

topic 8260

Hardlayer on Titanium


We have a cryogenic application (4 K) of a titanium shaft (TiAlVa64) making oscillating movements (about 2.5 degrees) in a AISI 316 sleeve with a pressure load of 73 N/mm2 without any lubrication except liquid Helium. Although there is a reasonable hardness difference, I wonder if a hardlayer on the titanium shaft is needed to prevent pitting or other wear. A hardchrome layer is impossible to get to the surface due to the TiO2-skin.

Your help would be appreciated very much.

Wouter Abbas
University Twente - Enschede, Holland


Aren't the metals (and alloys) already extremely hard and brittle at cryo temperatures? You are nearing absolute zero. A hard coating may not be of use.

Mandar Sunthankar
- Fort Collins, Colorado

This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2017     -    Privacy Policy
How Google uses data when you visit this site.