Hard-facing alloys having improved crack resistance

Details Hard-facing alloys having improved crack resistance Hard-facing alloys having improved crack resistance

B - Operations, Transporting

23

K

B23K 35/30 (2006.01) B23K 35/02 (2006.01) C22C 38/18 (2006.01) C22C 38/20 (2006.01) C22C 38/22 (2006.01) C22C 38/24 (2006.01) C22C 38/26 (2006.01) C22C 38/28 (2006.01) C22C 38/36 (2006.01)

Patent

CA 2720307

Weld deposit compositions with improved crack resistance, improved wear resistance, and improved hardness are provided by controlling matrix grain size and balancing Titanium and/or Niobium with Carbon and/or Boron content. Additionally, the presence of coarse chromium carbides is drastically decreased to reduce the amount of check-cracking. Preferably, the weld deposit is produced from a flux-cored or metal-cored wire. The weld deposit characteristics include a matrix having a fine grain size, small evenly dispersed carbides within the matrix, and a small amount of Carbon in the matrix.

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