weld behavior of martensitic steels and ni based alloys

Aging, welding, and grain size effects on the creep crack

Dec 31, 1995 · Aging, welding, and grain size effects on the creep crack propagation behavior of Haynes HR 160 alloy Microstructural development and corrosion behavior of 13Cr Jul 22, 2020 · Martensitic stainless steels are deposited during manufacturing or repair to prolong the service life of a workpiece in a wide variety of industries such as steelmaking. The post-weld heat treatment (PWHT) is necessary to provide appropriate mechanical properties. In this research, a four-layer clad including a buffer and three layers of 13Cr-4Ni-1Mo stainless steel was deposited on AISI

Nickel Alloys - an overview ScienceDirect Topics

Nickel-based alloys are relatively easy to weld, being similar to austenitic stainless steels in that respect. However, the hot-cracking susceptibility of nickel-based alloys is greater than that of austenitic stainless steels and the fluidity of the melted metal is inferior to that of both austenitic stainless steels and carbon steels. Prediction of Solidification Phases in Cr-Ni Stainless martensitic, and austenitic/martensitic stainless steels (e.g., Cr-Ni steel alloys) manufactured by laser based powder bed fusion (LPBF) processes has been the topic in many studies. All these studies investigated the effect of different process parameters on the manufactured specimen material. Weldability and weld performance of candidate nickel base May 13, 2015 · The U.S. Department of Energy's Office of Scientific and Technical Information

Welding-alloy-steel for sound and strong structures

Therefore if the conditions (carbon and alloy content) are such that hard and brittle martensitic microstructures are to be expected upon cooling from Welding-alloy-steel temperatures, with the concurrent risk of development of cracks, then modification of the cooling rate is to be implemented, mostly by preheating, to prevent the hardest structures from forming, or to temper them to lower and Welding of Ferritic / Martensitic Stainless Steels - TWIWelding consumables matching the base metal composition are available for most of the martensitic stainless steels, often with small additions of nickel to ensure that no ferrite is formed in the weld. Nickel lowers the temperature at which martensite transforms to austenite so it is important with such filler metals that the PWHT temperature is not allowed to exceed about 750°C otherwise untempered martensite will form in the weld