Thermal fatigue and endurance of welded joints of chromium-nickel heat resistant alloys
Creators
Description
Investigated is the effect of initial metal structure, heat treatment before and after the welding, deformations in a course of weld rolling, stress concentrations in a form of flash or notches arising in a course of weld trimming, on the thermal fatigue and endurance of welded joints of KhN56VMTJu (EhP-199) and Kh15M30VMT precipitation-hardening alloys. Thermal fatigue tests have been carried out under conditions of 200 deg reversible 8O0 deg C and 200 deg reversible 1000 deg C. Initial coarse grain and rough weld trimming are shown to decrease endurance and thermal fatigue. Thermal treatment according to the regime: quenching from 1150 deg C + ageing at 950 deg C during 5 hours for Kh56 VMTJu steel and quenching from 1120 deg C + ageing at 750 deg C during 16 hours for Kh15M30VMT provides strength a full-strength joint
Additional details
Additional titles
- Original title (Russian)
- Термическая усталость и выносливость сварных соединений хромоникелевых жаропрочных сплавов
Publishing Information
- Journal Title
- Svar. Proizvod.
- Journal Issue
- no.11
- Series
- Svar. Proizvod.
- ISSN
- 0491-6441
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- USSR
- INIS RN
- 11548437
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALLOY-EHP-199; CHROMIUM-MOLYBDENUM STEELS; HEAT RESISTING ALLOYS; HEAT TREATMENTS; HIGH TEMPERATURE; MICROSTRUCTURE; THERMAL FATIGUE; WELDED JOINTS
- Descriptors DEC
- ALLOYS; ALUMINIUM ALLOYS; CARBON ADDITIONS; CHROMIUM ALLOYS; CHROMIUM STEELS; CRYSTAL STRUCTURE; FATIGUE; IRON ADDITIONS; IRON ALLOYS; IRON BASE ALLOYS; JOINTS; MECHANICAL PROPERTIES; MOLYBDENUM ALLOYS; NICKEL ALLOYS; NICKEL BASE ALLOYS; STEELS; TITANIUM ALLOYS; TRANSITION ELEMENT ALLOYS; VANADIUM ALLOYS
Optional Information
- Notes
- For English translation see the journal Welding Production (UK).