Cold welding due to impact and fretting under high vacuum

Computer Science

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Space Environment, Materials, Ground Testing

Scientific paper

This paper shall present a survey on a vacuum or space related effect, which is referred to as "cold welding", "adhesion" or "sticking". It refers to "welding or sticking" of contacting bodies which shall open vertically (no sliding), i.e. acc. to ECSS "separable contact surfaces". Starting from a reported failure on a spacecraft, test facilities were developed and a verification study was done to show relevance between the test results and the reported failure. In the following, a standardised test method was set-up, in order to compare different space relevant materials and coatings for their tendency to cold welding. Within several studies, common experience and numerical results were gained on space relevant combinations of materials and coatings. Based on this knowledge, recommendations for use of certain combinations will be drawn. As example, stainless steel SS17-7ph will have to be avoided or several finishes on Al AA7075 can be recommended (e.g. hard anodising).

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Cold welding due to impact and fretting under high vacuum does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cold welding due to impact and fretting under high vacuum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cold welding due to impact and fretting under high vacuum will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1153120

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.