Journal ArticleDOI
Transition of creep damage region in dissimilar welds between Inconel 740H Ni-based superalloy and P92 ferritic/martensitic steel
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In this paper, the microstructures and creep fracture characteristics of dissimilar welds between Ni-based Inconel 740H superalloy and ferritic/martensitic P92 steel has been investigated.About:
This article is published in Materials Characterization.The article was published on 2018-05-01. It has received 45 citations till now. The article focuses on the topics: Inconel & Superalloy.read more
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A critical review on dissimilar welds joint between martensitic and austenitic steel for power plant application
Gaurav Dak,Chandan Pandey +1 more
TL;DR: In this paper, the microstructure and mechanical behavior of the dissimilar welded joint (DWJ) between ferritic-martensitic steel and austenitic grade steel along with its application have been summarized in Ultra Super Critical (USC) power plant.
Journal ArticleDOI
Characterization on the gradient microstructure near the fusion interface of dissimilar metal between high Cr heat-resistant steel and Ni-based Alloy 617
TL;DR: In this article, the gradient microstructure occurring adjacent to fusion interface of dissimilar metal between high Cr steel and nickel-based Alloy 617 was characterized in detail, and its formation mechanism was discussed.
Journal ArticleDOI
In-situ EBSD study of deformation behavior of Inconel 740H alloy at high-temperature tensile loading
TL;DR: In this article, a joint application of in-situ SEM and EBSD techniques, the tensile mechanical properties, microstructure, orientation, and grain boundary evolutions under near service conditions (650°C) were experimentally investigated.
Journal ArticleDOI
Autogenous laser-welded dissimilar joint of ferritic/martensitic P92 steel and Inconel 617 alloy: mechanism, microstructure, and mechanical properties
Amit Kumar,Chandan Pandey +1 more
Journal ArticleDOI
Effect of post-weld heat treatment on the microstructure and hardness of P92 steel in IN740H/P92 dissimilar weld joints
TL;DR: In this paper, microstructural factors that contribute to hardening mechanisms were investigated to explain the effect of postweld heat treatment (PWHT) on the hardness of P92 steel in IN740H/P92 dissimilar weld joints.
References
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Journal ArticleDOI
INCONEL 718: A solidification diagram
TL;DR: In this paper, the authors used an integrated analytical approach to generate a constitution diagram for INCONEL 718* in the temperature range associated with solidification, where the important features of the diagram are an austenite (γ)/Laves phase eutectic which occurs at ≈19.1 wt pct Nb and a Laves phase which contains ≈22.4 wt nb. The distribution coefficient for Nb was found to be ≈0.5.
Journal ArticleDOI
Materials for ultra-supercritical coal-fired power plant boilers
R. Viswanathan,K. Coleman,U. Rao +2 more
TL;DR: In this paper, the authors identify, evaluate and qualify the materials needed for the construction of the critical components of coal-fired boilers capable of operating with 760 ÂC (1400 ÂF)/35 ÂMPa (5000 ÂPi) steam.
Journal ArticleDOI
Causes of breakdown of creep strength in 9Cr-1.8W-0.5Mo-VNb steel
TL;DR: In this paper, the authors found that Laves phase precipitates and grows during creep exposure, and the brittle fracture causes the breakdown of the brittle intergranular fracture in high-cr ferritic steels.
Journal ArticleDOI
Creep behavior and stability of mx precipitates at high temperature in 9cr–0.5mo–1.8w–vnb steel
Kota Sawada,K. Kubo,Fujio Abe +2 more
TL;DR: In this article, the growth behavior of carbonitrides during aging and creep was investigated for 9Cr-0.5Mo-1.8W-VNb steel (ASME-P92).
Journal ArticleDOI
Solidification of nb-bearing superalloys : Part I. Reaction sequences
TL;DR: In this paper, the reaction sequences responsible for microstructural development were found to be similar to those expected in the Ni-Nb-C ternary system and commercial superalloys of comparable composition.
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