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Academic literature on the topic 'ICHAZ'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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Journal articles on the topic "ICHAZ"

1

Jambor, Michal, Frantisek Novy, Milos Mician, Libor Trsko, Otakar Bokuvka, Filip Pastorek, and Daniel Harmaniak. "Gas Metal Arc Welding of Thermo-Mechanically Controlled Processed S960MC Steel Thin Sheets with Different Welding Parameters." Communications - Scientific letters of the University of Zilina 20, no. 4 (December 31, 2018): 29–35. http://dx.doi.org/10.26552/com.c.2018.4.29-35.

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In this paper are presented results of mechanical properties evaluation of the thin sheets welds made of the S960MC TMCP steel, which were executed using the GMAW procedure with different process parameters. The microstructural changes in the heat affected zone (HAZ) were evaluated, as well. The microstructural observation revealed significant changes in the HAZ and the three main zones, coarse grain, fine grain and intercritical (CGHAZ, FGHAZ and ICHAZ) were identified in the HAZ for both sets of tested welding parameters. Evaluation of the micro-hardness showed significant reduction of the micro-hardness in the ICHAZ, for both tested states, and the ICHAZ was identified as the most critical area of the whole welded joint. Results of the tensile tests revealed significant reduction of mechanical properties regardless of the welding parameters.

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Kim, Namkyu, Yongjoon Kang, Jinhyeok Bang, Sangwoo Song, Seong-Moon Seo, Chung-Yun Kang, and Namhyun Kang. "Effect of Postweld Heat Treatments on Type IV Creep Failure in the Intercritical Heat-Affected Zone of 10% Cr Martensitic Steel Welded with Haynes 282 Filler." Metals 11, no. 5 (April 28, 2021): 726. http://dx.doi.org/10.3390/met11050726.

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This study investigated the effect of postweld heat treatment (PWHT) conditions on Type IV failure behavior of 10% Cr martensitic steel welds using Haynes 282 filler. The welded joints were subjected to PWHT at temperatures of 688, 738, and 788 °C for 4 and 8 h. Creep tests were carried out at 600 °C under a stress of 200 MPa. The as-welded joint without PWHT showed Type IV cracking due to growth of voids around Laves phase by localized creep deformation in the intercritical heat-affected zone (ICHAZ). The creep properties of the PWHTed joints at 688 °C were similar to those of the as-welded joints without PWHT. On the other hand, the PWHTed joints at 738 °C exhibited a significantly longer creep life by a lower amount of Laves phase in the ICHAZ than those at 688 °C; this could be a result of the homogenization of ICHAZ microstructure during PWHT at 738 °C. However, the PWHT at 688 and 738 °C showed the same Type IV creep failure mode. Meanwhile, the PWHTed joints at 788 °C exhibited the shortest creep life in this study. The failure location was shifted to the base metal away from the HAZ, and severe plastic deformation occurred due to the softened matrix by excessive tempering.

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Kim, Kwangsoo, Namhyun Kang, Minjung Kang, and Cheolhee Kim. "Assessment of Heat-Affected Zone Softening of Hot-Press-Formed Steel over 2.0 GPa Tensile Strength with Bead-On-Plate Laser Welding." Applied Sciences 11, no. 13 (June 22, 2021): 5774. http://dx.doi.org/10.3390/app11135774.

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High-strength hot-press-formed (HPF) steels with a fully martensitic microstructure are being widely used in the fabrication of automotive body structure, and 2.0 GPa-strength HPF steel has recently been commercially launched. However, heat-affected zone (HAZ) softening is unavoidable in welding martensitic steel. In this study, the HAZ softening characteristic of 2.0 GPa HPF steel was investigated by applying a high-brightness laser welding process, wherein the heat input was controlled by varying the welding speed. Microstructural evaluation and hardness test results showed that the base metal with a fully martensitic microstructure was changed to the same type of fully martensitic microstructure in the weld metal, while relatively soft microstructures of tempered martensite and ferrite phase were partially formed in the intercritical HAZ (ICHAZ) and subcritical HAZ (SCHAZ) areas. In the tensile test, the joint strength was 10–20% lower than that of the base metal, and the fracture initiation was estimated at the ICHAZ/SCHAZ boundary, where the lowest hardness was confirmed by the nanoindentation technique.

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Mičian, Miloš, Milan Maronek, Radoslav Konar, Daniel Harmaniak, Mihal Jambor, Libor Trško, and Jerzy Wincek. "Changes of microstructure and mechanical properties of the HAZ of the S960MC steel sheet weld joint." Zavarivanje i zavarene konstrukcije 65, no. 3 (2020): 113–23. http://dx.doi.org/10.5937/zzk2003113m.

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The TMCP (thermo-mechanically controlled processed) steels belong to the group of ultra-high strength steels, which exhibit exceptional combination of high tensile and yield strength, toughness and ductility. These steels were introduced in the heavy machinery constructions, such as heavy mobile cranes, chassis trucks and other to reduce their weight, what increases their loading capacity and ecology of transport. The high tensile and yield strength of this type of steels is obtained by the combination of the chemical composition, heat treatment and the mechanical processing. However, the heat input into the material during the welding significantly affect properties of the steel and the whole joint. In this paper are presented results of mechanical properties evaluation and structural analysis of the welds of the thin sheets made of the S960MC steel, which were welded using the GMAW procedure. The microstructural evaluation referred significant changes in the HAZ. This area contains the three sub-zones, coarse grain (CGHAZ), fine grain (FGHAZ) and intercritical zone (ICHAZ). Analysis of microhardness and the tensile tests results showed, that ICHAZ is the most critical area of the whole welded joint.

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Indacochea, J. E., G. Wang, R. Seshadri, and Y. K. Oh. "Creep Rupture Properties of High-Temperature Bainitic Steels After Weld Repair." Journal of Engineering Materials and Technology 122, no. 3 (March 1, 2000): 259–63. http://dx.doi.org/10.1115/1.482796.

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Welded high-temperature power plant components can experience a greater risk of failure by creep during service, when compared to similar as-wrought components. The heat-affected zone (HAZ) of alloy steels is usually the region of a weldment exhibiting poor mechanical properties. The arc welding of an ASTM A470, Class 8-rotor steel in this study identified the intercritical heat affected zone (ICHAZ) as the weakest region in terms of creep rupture life. The type of welding procedure significantly affects this region, but most important are the welding parameters utilized. Because of the microstructural heterogeneity of the HAZ and sensitivity of these microstructures to changes when exposed to elevated temperatures, their performance at later times is difficult to predict. Extrapolation techniques are limited in value for predicting service lives of homogeneous materials, because these do not incorporate the microstructure changes of the materials during high temperature operation. They are even less useful for predicting the operating lives of weldments. This paper considers the creep performance and structure stability of the ICHAZ of 12 percent Cr and 214-1Mo vanadium modified weldments produced on a retired CrMoV rotor steel. [S0094-4289(00)00303-0]

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Wang, Yiyu, Wei Zhang, Yong Chae Lim, Yanli Wang, and Zhili Feng. "Microstructure and Mechanical Properties of Intercritically Treated Grade 91 Steel." Materials 13, no. 18 (September 10, 2020): 3985. http://dx.doi.org/10.3390/ma13183985.

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Premature creep failures at the intercritical heat affected zone (ICHAZ) of creep-resistant steel weldments have been frequently reported. However, the creep degradation mechanism of different microstructure constituents in ICHAZ is complicated and needs further clarification. In this work, Grade 91 steel was intercritically heat-treated at a temperature (860 °C) between the critical temperatures AC1 and AC3, and a correlation between microstructure and mechanical properties of the heat-treated specimen was built. The effects of austenitization and tempering resulting from the intercritical treatment (IT) differentiated the local strain energies between the two microstructure constituents: newly transformed martensite (NTM) and over-tempered martensite (OTM). The formation of NTM grains led to a hardness increase from 247 HV0.5 in the base metal to 332 HV0.5 in the IT specimen. The ultimate tensile strength (UTS) increased from 739 MPa in the base metal to 1054 MPa in the IT specimen. Extensive growth of the OTM grains and rapid recovery of NTM grains took place simultaneously in the IT specimen during a typical tempering at 760 °C. These microstructure degradations led to a lowered hardness of 178 HV0.5, a reduced UTS of 596 MPa, and a poor creep resistance with a minimum creep strain rate of 0.49 %/h at 650 °C in an IT + tempering (ITT) specimen.

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Cho, Dong Min, Jin-seong Park, Jin Woo Lee, and Sung Jin Kim. "Study on Hydrogen Diffusion and Sulfide Stress Cracking Behaviors of Simulated Heat-Affected Zone of A516-65 Grade Pressure Vessel Carbon Steel." Korean Journal of Metals and Materials 58, no. 9 (September 5, 2020): 599–609. http://dx.doi.org/10.3365/kjmm.2020.58.9.599.

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Hydrogen diffusion and sulfide stress cracking of simulated heat-affected zone (HAZ) of A516- 65 grade steel were examined using an electrochemical permeation technique, glycerin volumetric method, and constant loading method. HAZ samples were fabricated using a metal thermal cycle simulator with a welding heat input of 20, 35, and 50 kJ/cm. The fractions of bainite and martensite-austenite (M-A) constituent in coarse-grained HAZ (CGHAZ) and intercritical HAZ (ICHAZ) obtained by a simulated thermal cycle with a low heat input (20 kJ/cm) were higher than those with a higher heat input. These fractions contributed to the increase in the reversible hydrogen trap density (N<sub>[H]rev</sub>) and reversibly trapped hydrogen concentrations (C<sub>rev</sub>). Although CGHAZ had higher N<sub>[H]rev</sub> and C<sub>rev</sub> meaning that it is more likely to be vulnerable to brittle failure by hydrogen, actual fracture by sulfide stress cracking (SSC) occurred in ICHAZ composed of a mixture of soft ferrite/pearlite, and hard bainite and M-A. The hydrogen diffusion/trapping parameters, which were obtained from the electrochemical permeation or glycerin method, cannot be directly indicative of the resistance to SSC of the steel in a H<sub>2</sub>S environment. The susceptibility to SSC was more influenced by the level of M-A-localization and localized corrosion attack, acting as a stress intensifier under a tensile load.

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Qiao, Gui Ying, Ming Zheng, Yu Gu, Xiu Lin Han, Xu Wang, Fu Ren Xiao, and Bo Liao. "Mechanical Properties of the Heat Affected Zone of an X100 Grade Pipeline Steel." Materials Science Forum 773-774 (November 2013): 795–802. http://dx.doi.org/10.4028/www.scientific.net/msf.773-774.795.

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The microstructure and mechanical properties of an X100 grade pipeline steel were investigated by the thermal simulation tests performed on a Gleeble-3500 thermal simulator. The results show that the steel has excellent weldability. Even if the weld heat input gets 40 kJ mm-1, the low impact toughness energy in welding coarse grain heat affected zone (CGHAZ) is still higher than 200 J. Yet, an embrittlement zone emerges in inter-critical HAZ (ICHAZ) at the peak temperature of 750 °C, and the lowest strength appears in fine grained HAZ (FGHAZ) at the peak temperature of 950 °C. Moreover, the strength and toughness decrease with the increase of heat input.

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Falat, L., V. Homolová, J. Kepic, M. Svoboda, and A. Výrostková. "Microstructure and properties degradation of P/T 91, 92 steels weldments in creep conditions." Journal of Mining and Metallurgy, Section B: Metallurgy 48, no. 3 (2012): 461–69. http://dx.doi.org/10.2298/jmmb120701057f.

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The studies were performed on dissimilar ferritic/austenitic weldments between 9Cr tempered martensitic steels of the grades either P/T 91 or 92 and unstabilised AISI316H austenitic steel. The welded joints were fabricated using the fusion welding by tungsten inert gas (TIG) method with Ni-based filler metal. Microstructural analyses were performed using light and electron microscopy. Microstructural gradient in heat-affected zone (HAZ) of 9Cr steels remained preserved during creep exposure. All weldments fractured by the type IV failure within their intercritical HAZ (ICHAZ) regions. The most remarkable microstructural change during creep was the precipitation of intermetallic Laves phase. Experimentally determined phases of the samples after creep exposure are in good agreement with equilibrium thermodynamic calculations.

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Li, Li Ying, Wang Yong, Han Tao, and Chao Wen Li. "Effect of Postweld Heat Treatment on Toughness of the Heat Affected Zone in ASTM4130 Steel with Single-Pass Welding." Advanced Materials Research 228-229 (April 2011): 975–80. http://dx.doi.org/10.4028/www.scientific.net/amr.228-229.975.

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The effect of postweld heat treatment (PWHT) on microstructure and properties of the heat affected zone (HAZ) in ASTM4130 steel fabricated by single-pass welding was investigated by weld thermal simulation test, optical microscope, transmission electron microscopy and scanning electron microscope. The results show that the subcritical HAZ (SCHAZ) toughness slightly decreases due to the aggregation and growth of carbides. Other HAZ toughness is significantly improved showing that the 650°C/1.5h PWHT is effective. The toughness improvement of the fine-grained HAZ (FGHAZ) and the intercritical HAZ (ICHAZ) is chiefly resulted from the complete decomposition of martensite and M-A constituent. Meanwhile, the supersaturation reduction of non-equilibrium microstructure and the relief of residual stress effectively improve CGHAZ toughness.

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Dissertations / Theses on the topic "ICHAZ"

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Stritch, Kyle B. "Microstructural Evolution and Mechanical Properties in Simulated Heat Affected Zone Regions of Grade 91 Steel Welds." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471444438.

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Icha, Jaroslav [Verfasser], Caren [Akademischer Betreuer] Norden, Michael [Gutachter] Brand, and William [Gutachter] Harris. "Ganglion cell translocation across the retina and its importance for retinal lamination / Jaroslav Icha ; Gutachter: Michael Brand, William Harris ; Betreuer: Caren Norden." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://d-nb.info/112589301X/34.

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Books on the topic "ICHAZ"

1

Sharafiddinov, Ozod. Ichak uzar ḣangomalar. Toshkent: "Sharq", 1994.

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IChat AV 2 for Mac OS X. Berkeley, Calif: Peachpit Press, 2004.

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Zora, Miklíková, and Thomas Richard, eds. Current research in animal palaeopathology: Proceedings of the Second ICAZ Animal Palaeopathology Working Group Conference. Oxford, England: Archaeopress, 2008.

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International Council for Archaeozoology. Animal Palaeopathology Working Group. Conference. Current research in animal palaeopathology: Proceedings of the Second ICAZ Animal Palaeopathology Working Group Conference. Oxford, England: Archaeopress, 2008.

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International Council for Archaeozoology. Fish Remains Working Group. Meeting. Fish exploitation in the past: Proceedings of the 7th Meeting of the ICAZ Fish Remains Working Group. Edited by Neer W. van. Tervuren, België: Koninklijk Museum voor Midden-Africa, 1994.

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ICAZ Bird Working Group. Meeting. Proceedings of the 4th meeting of the ICAZ Bird Working Group: Kraków, Poland, 11-15 September, 2001. Kraków: Instytut Systematyki i Ewolucji Zwierzat Polskiej Akademii Nauk, 2002.

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7

Wietske, Prummel, Zeiler, J. T. (Jørn T.), and Brinkhuizen, D. C. (Dick C.), eds. Birds in archaeology: Proceedings of the 6th meeting of the ICAZ Bird Working Group in Groningen (23.8 - 27.8.2008). Eelde: Barkhuis, 2010.

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ICAZ Symposium on the History of the Domestic Dog (1st 1998 Victoria, B.C.). Dogs through time: An archaeological perspective : proceedings of the 1st ICAZ Symposium on the History of the Domestic Dog. Oxford, England: Archaeopress, 2000.

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9

Margairaz, André. La fiscalité rénovée: Réflexion sur l'impôt direct, l'impôt sur le chiffre d'affaire (Icha) et la taxe sur la valeur ajoutée (TVA). [Blonay, Switzerland: Margairaz, 1991.

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International Council for Archaeozoology. Conference, ed. Archaeomalacology revisited: Non-dietary use of molluscs in archaeological settings : proceedings of the archaeomalacology sessions at the 10th ICAZ Conference, Mexico City, 2006. Oxford: Oxbow Books, 2011.

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Book chapters on the topic "ICHAZ"

1

Meyers, Scott, and Mike Lee. "iChat." In Learn Mac OS X Snow Leopard, 283–301. Berkeley, CA: Apress, 2009. http://dx.doi.org/10.1007/978-1-4302-1947-7_12.

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Edge, Charles S., Chris Barker, and Ehren Schwiebert. "iChat Server." In Beginning Mac OS X Snow Leopard Server, 303–16. Berkeley, CA: Apress, 2010. http://dx.doi.org/10.1007/978-1-4302-2773-1_11.

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Bartosiewicz, László. "International Council for Archaeozoology (ICAZ)." In Encyclopedia of Global Archaeology, 1–3. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-51726-1_2112-2.

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Bartosiewicz, László. "International Council for Archaeozoology (ICAZ)." In Encyclopedia of Global Archaeology, 3962–64. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4419-0465-2_2112.

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Bartosiewicz, László. "International Council for Archaeozoology (ICAZ)." In Encyclopedia of Global Archaeology, 5863–66. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-30018-0_2112.

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Mayers, Scott, and Mike Lee. "Instant Communication with iChat and FaceTime." In Learn OS X Lion, 227–44. Berkeley, CA: Apress, 2011. http://dx.doi.org/10.1007/978-1-4302-3763-1_13.

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Grothaus, Michael, Steve Sande, and Dave Caolo. "Communicating in Real-Time with iChat and FaceTime." In Taking Your OS X Lion to the Max, 153–76. Berkeley, CA: Apress, 2011. http://dx.doi.org/10.1007/978-1-4302-3669-6_10.

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"icha-icha - iso-iso." In Trends in Linguistics. Documentation, 561–64. Berlin, New York: DE GRUYTER MOUTON, 1996. http://dx.doi.org/10.1515/9783110809046.1.561.

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"Safari and iChat." In Getting StartED with Mac OS X Leopard, 67–85. Berkeley, CA: Apress, 2007. http://dx.doi.org/10.1007/978-1-4302-0519-7_5.

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"Interview with Ichak Kalderon Adizes." In Theory and Practice of Online Therapy, edited by Haim Weinberg and Arnon Rolnick, 223–27. Routledge, 2019. http://dx.doi.org/10.4324/9781315545530-20.

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Conference papers on the topic "ICHAZ"

1

Wang, Yiyu, Wei Zhang, and Zhili Feng. "Effect of Pre-Weld Heat Treatment on Microstructure and Creep Strength of ICHAZ in Grade 91 Steel." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93315.

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Abstract In this work, Grade 91 base metal was normalized with two different cooling conditions, water quenching and air cooling. The intercritical welding thermal cycle simulated by using the Gleeble system was applied to the heat-treated base metals to reproduce the intercritical heat-affected zone (ICHAZ). Microstructure, including precipitate and tempered martensite, of the base metal and ICHAZ was carefully characterized with advanced microscopy techniques. Creep strength of the simulated ICHAZs was evaluated at a high creep temperature of 650 °C with a stress of 100 MPa. A correlation between the microstructure and creep behavior of the ICHAZ is built to understand creep rupture mechanisms in the ICHAZ. The results show that more coarse carbides precipitated along the prior austenite grain boundaries after tempering in the water-quenched base metal. These carbides cannot be fully dissolved by the intercritical welding thermal cycle. The simulated ICHAZ generated from the water-quenched base metal underwent a higher grain recovery and growth during the typical post-weld heat treatment at 760 °C. Both simulated ICHAZs from two pre-weld heat treated base metals exhibit an extremely low creep resistance with a typical ductile fracture during creep testing. The faster grain growth and precipitate coarsening in the ICHAZ, simulated from the water-quenched base metal, made it even worse.

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Mac Ardghail, Padraig, Richard A. Barrett, Noel Harrison, and Sean B. Leen. "Predictions of ICHAZ Cyclic Thermo-Mechanical Response in GTAW Process for 9Cr Steels." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65794.

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This work is concerned with the development of a modelling framework to predict the effects of tempered-untempered martensite heterogeneity on the thermo-mechanical performance of welded material. A physically-based visco-plasticity model for the inter-critical heat-affected zone (ICHAZ) for 9Cr steels (e.g. P91, P92) is presented in this work, with the ICHAZ represented as a mixture of tempered and untempered martensite. The constitutive model includes dislocation-based Taylor hardening and damage for different material phases. A sequentially-coupled thermal-mechanical welding simulation is conducted to predict the volume fraction compositions for the various weld-affected material zones in a cross-weld specimen. The out-of-phase cyclic thermo-mechanical (25°C to 600°C) performance of notched and plain samples is comparatively assessed for a range of different tempered-untempered martensitic material heterogeneities. It is shown that the heterogeneity in a simulated cross-weld material is highly detrimental to thermal cyclic performance.

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Devaney, Ronan J., Adrian Connaire, Padraic E. O’Donoghue, and Sean B. Leen. "Process-Structure-Property Fatigue Characterisation for Welding of X100 Steel Catenary Risers." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96516.

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Abstract Welded connections are a fatigue sensitive location for offshore steel catenary risers. The susceptibility to fatigue is due to the notch effect of the weld and the gradient in microstructure and material properties across the weld which result from welding thermal cycles and differences in the composition of the parent material and weld metal. In this work, a representative full-scale steel catenary riser girth weld is conducted using X100Q steel. The thermal and strain history in the weld zone are captured using a thermocouple and strain gauge array. A parallel programme of Gleeble thermomechanical simulation is implemented to develop microstructurally uniform heat affected zone (HAZ) test specimens. The parent material, weld metal, simulated HAZ and a cross-weld sample are characterised using a programme of nanoindentation, tensile and fatigue testing. A softened region with microstructure corresponding to intercritical HAZ (ICHAZ) is identified in the girth weld. Tensile and fatigue failures are shown to occur in a representative microstructural region for simulated HAZ specimens, indicating a susceptibility to failure in the ICHAZ for matched or over-matched X100Q welds.

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Liu, Yu, Yezheng Li, Shuo Li, Zongbin You, and Zhanghua Yin. "Microstructure and Mechanical Properties of Girth Weld HAZ in X80 Line Pipe With High Deformability for Strain Based Design Applications." In 2016 11th International Pipeline Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ipc2016-64321.

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X80 line pipe with high longitudinal deformability (X80HD) has been developed and applied in the Strain Based Design (SBD) of pipelines in harsh environment such as seismic areas, permafrost areas, fault zones, etc. For SBD pipelines it is critical that the pipeline girth welds overmatch the tensile properties of the pipe material to avoid local strain accumulation in the girth weld during a strain event. Also, it is important that pipeline girth welds that may experience high strains in operation have sufficient toughness to ensure adequate resistance to failure by fracture. The objective of this research was to gain a better understanding of the influence of chemical composition and essential welding variables on microstructure and properties of the HAZ regions formed in X80HD pipeline girth welds. In this study, by using the weld thermal simulation approach, the peak temperatures (Tp, representative of the distance to the fusion boundary) and the cooling times, particularly between 800 °C and 500 °C (t8/5, representative of the weld heat input), identical to those occurring in the girth weld HAZ of three different X80HD pipe steels, were artificially reproduced. It should be noted that t8/5 is influenced by both heat input and preheat temperature. The weld peak temperatures, Tp, from 500 °C to 1300 °C, in 100 °C increment, whereas the cooling times t8/5 from 5 to 30 seconds were in 5, 15, and 30 seconds, associated with the heat input range of self-shielded flux cored arc welding (FCAW-S). The thermal simulation specimens on tensile properties, Charpy impact toughness, and Vickers hardness were tested and analyzed. Microstructures of these simulated HAZ were characterized by optical microscopy (OM) and scanning electron microscopy (SEM). Finally, the actual FCAW-S girth welding experiments were carried out. These girth welds were subjected to different testing for evaluation of microstructure and mechanical properties of X80HD girth welded joints. These included transverse weld tensile testing, microhardness map of the weld joint, Charpy V-notch impact testing of weld metal and HAZ, and microstructure analysis. The results demonstrated that softening occurs in the fine grained HAZ (FGHAZ) and the inter-critical HAZ (ICHAZ) of X80HD line pipe girth welds. The severity of HAZ softening depends on the steel chemistry and the heat input applied during girth welding. The metallurgical design of the X80HD pipeline steel and the optimization of the girth welding procedures were proposed.

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Gu, Junli, Bradford M. Beckmann, Ting Cao, and Yu Hu. "iCHAT: Inter-cache Hardware-Assistant Data Transfer for Heterogeneous Chip Multiprocessors." In 2014 9th IEEE International Conference on Networking, Architecture, and Storage (NAS). IEEE, 2014. http://dx.doi.org/10.1109/nas.2014.43.

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von Bally, Gert. "Holography And The Freedom Of Science - A Welcome Address To ICHA '86." In Holography Applications, edited by Jingtang Ke and Ryszard J. Pryputniewicz. SPIE, 1988. http://dx.doi.org/10.1117/12.939084.

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"Osobennosti khimicheskogo sostava bolotnykh vod na uchastke razliva nefti v basseyne reki Malaya Icha (Zapadnaya Sibir)." In Perspektivnye materialy s ierarkhicheskoy strukturoy dlya novykh tekhnologiy i nadezhnykh konstruktsiy, Khimiya nefti i gaza. Tomsk State University, 2018. http://dx.doi.org/10.17223/9785946217408/565.

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Voistinova, E. S., Y. A. Kharanzhevskaya, O. V. Serebrennikova, I. V. Russkikh, and E. B. Strelnikova. "Water chemical composition in a petroleum-contaminated swamp forest within the Malaya Icha River basin, Great Vasyugan Mire, Western Siberia." In PROCEEDINGS OF THE ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES. Author(s), 2018. http://dx.doi.org/10.1063/1.5083565.

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Reports on the topic "ICHAZ"

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Zaraisky, E. I. Comparative study of tests for simultaneous diagnosis of AFP and beta-HCG oncoantigens by ICHA methods using nanozolot and IPMS-ELISA using isotopes Eu3+ and Sm3+. Sputnik+, 2018. http://dx.doi.org/10.18411/1684-2626n9_18.

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