Localized ageing in the heat affected zone of welded X5CrNiCuNb16-4 and X4CrNiSiTi14-7 sheets
Creators
- 1. Pakistan Welding Inst., Islamabad (Pakistan)
- 2. Vienna Univ. of Technology, Vienna (Austria)
Description
Localized ageing and corresponding microstructural developments as a result of welding heat in the heat-affected zone (HAZ) of two different precipitation-hardened Cr-Steels (X5CrNiCuNb16-4 and X4CrNiSiTi14-7) have been studied. The X5CrNiCuNb16-4 sheet was in solution annealed condition and X4CrNiSiTi14-7 sheet was in peak aged condition. The results showed that despite of initial heat treated condition, the fusion zone formed in both welded sheets has typical cast structure. The HAZ has different microstructure compared to fusion zone and base metal. The HAZ is found to be sensitive to the welding heat and was aged locally due to thermal effects of welding. This localized ageing forms regions in HAZ varying from over-aged to under aged, depending upon the initial ageing condition of the base sheet. (author)
Additional details
Publishing Information
- Publisher
- Institute of Physics, London, GB
- Imprint Place
- Islamabad (Pakistan)
- Imprint Title
- 13th International Symposium on Advanced Materials
- Imprint Pagination
- 580 p.
- Journal Page Range
- p. 566-574
Conference
- Title
- 13. International Symposium on Advanced Materials
- Dates
- 23-27 Sep 2013
- Place
- Islamabad (Pakistan)
INIS
- Country of Publication
- Pakistan
- Country of Input or Organization
- Pakistan
- INIS RN
- 47012835
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CHROMIUM ALLOYS; COPPER ALLOYS; HARDNESS; MICROSTRUCTURE; SHEETS; STAINLESS STEELS; WELDED JOINTS; WELDING
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; FABRICATION; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; JOINING; JOINTS; MECHANICAL PROPERTIES; STEELS; TRANSITION ELEMENT ALLOYS