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Effect of Low Degree Cold Deformation on Hardening During Artificial Aging of Sheets Made from Alloys of the Al – Mg – Si System 低度冷变形对Al - Mg - Si系合金板材人工时效硬化的影响
IF 0.5 4区 材料科学
Metal Science and Heat Treatment Pub Date : 2025-11-04 DOI: 10.1007/s11041-025-01173-y
V. V. Yashin, Ye. V. Aryshensky, A. M. Drits, A. F. Grechnikova, Ya. A. Yerisov, D. Yu. Rasposienko
{"title":"Effect of Low Degree Cold Deformation on Hardening During Artificial Aging of Sheets Made from Alloys of the Al – Mg – Si System","authors":"V. V. Yashin,&nbsp;Ye. V. Aryshensky,&nbsp;A. M. Drits,&nbsp;A. F. Grechnikova,&nbsp;Ya. A. Yerisov,&nbsp;D. Yu. Rasposienko","doi":"10.1007/s11041-025-01173-y","DOIUrl":"10.1007/s11041-025-01173-y","url":null,"abstract":"<p>The article examines the poorly studied effect of reducing the strength properties of artificially aged aluminum sheets made of Al – Mg – Si alloys preliminarily subjected to plastic deformation. Specimens of cold-rolled strip made of alloy 6022 obtained in industrial production were investigated. To assess the magnitude of deformations occurring during sheet stamping of car structural parts, the processes of forming the C- and D-pillars, the inner parts of the hood and the tray were modeled using the PAM-Stamp 2G software package. Quenching, stabilizing heat treatment, deformation, and artificial aging were performed under laboratory conditions. The mechanical properties of the alloy were determined during tensile testing of flat specimens. Transmission electron microscopy was used to investigate the microstructure of the alloy. Thermal hardening was found to slow down after stabilizing heat treatment and deformation. This effect is explained by the fact that the Mg – Si clusters formed in the course of stabilizing heat treatment are destroyed during deformation. As a result, artificial aging in the samples begins at an earlier stage of thermal hardening.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 5-6","pages":"383 - 391"},"PeriodicalIF":0.5,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relationship Between the Mechanical Properties of Spheroidal Graphite Cast Iron and the Parameters of Graphite and the Structure of the Metallic Matrix 球墨铸铁力学性能与石墨参数及基体组织的关系
IF 0.5 4区 材料科学
Metal Science and Heat Treatment Pub Date : 2025-11-04 DOI: 10.1007/s11041-025-01171-0
V. V. Yurov, A. A. Zhogova, I. A. Tsyganov, N. A. Pripadcheva
{"title":"Relationship Between the Mechanical Properties of Spheroidal Graphite Cast Iron and the Parameters of Graphite and the Structure of the Metallic Matrix","authors":"V. V. Yurov,&nbsp;A. A. Zhogova,&nbsp;I. A. Tsyganov,&nbsp;N. A. Pripadcheva","doi":"10.1007/s11041-025-01171-0","DOIUrl":"10.1007/s11041-025-01171-0","url":null,"abstract":"<p>The article investigates the effect of the shape, distribution, and diameter of graphite inclusions as well as the content of ferrite, pearlite, and carbides in the structure of spheroidal graphite cast iron (SGCI) on its mechanical properties. Nine structural SGCI groups with ferritic, ferritic-pearlitic, and pearlite-ferritic matrices which differ in graphite parameters and the content of pearlite, ferrite, and carbides are analyzed. The cast iron microstructure was studied using optical microscopes and quantitative metallography methods. The mechanical properties were determined in static tensile strength tests. Regression equations were constructed to calculate the tensile strength and elongation values for cast irons with different structures.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 5-6","pages":"369 - 375"},"PeriodicalIF":0.5,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of T6 Heat Treatment on Mechanical Properties and Corrosion Behaviors of Al – 9.5Si – 1.5Cu – 0.45Mg Alloy T6热处理对Al - 9.5Si - 1.5Cu - 0.45Mg合金力学性能和腐蚀行为的影响
IF 0.5 4区 材料科学
Metal Science and Heat Treatment Pub Date : 2025-11-04 DOI: 10.1007/s11041-025-01175-w
Yingjun Zhang, Qingbo Zhou, Xu Guo, Xinying Teng, Jinfeng Leng, Guorong Zhou
{"title":"Effects of T6 Heat Treatment on Mechanical Properties and Corrosion Behaviors of Al – 9.5Si – 1.5Cu – 0.45Mg Alloy","authors":"Yingjun Zhang,&nbsp;Qingbo Zhou,&nbsp;Xu Guo,&nbsp;Xinying Teng,&nbsp;Jinfeng Leng,&nbsp;Guorong Zhou","doi":"10.1007/s11041-025-01175-w","DOIUrl":"10.1007/s11041-025-01175-w","url":null,"abstract":"<p>The effect of the T6 heat treatment mode on the microstructure, mechanical properties and corrosion behaviour of the Al – 9.5Si – 1.5Cu – 0.45Mg (Al – Si – Cu – Mg) alloy was studied. It was found that the most effective T6 heat treatment mode for the Al – Si – Cu – Mg alloy is the following: heating to 490°C with a 5-hour hold, then heating to 530°C with a 4-hour hold and subsequent water quenching, followed by aging at 150°C for 12 hours. In the cast state, the alloy has a tensile strength of 225 MPa and a corrosion depth of 20 μm in a 3.5% NaCl solution. After T6 heat treatment according to the proposed mode, the tensile strength of the Al – Si – Cu – Mg alloy increases to 397 MPa, and the corrosion depth in a 3.5% NaCl solution decreases to 13 μm. The enhancement of strength and corrosion resistance of the alloy after aging is attributed to the spheroidization and refinement of the Si phase, fine 8-Al<sub>2</sub>Cu and Q-Al<sub>5</sub>Cu<sub>2</sub>Mg<sub>8</sub>Si<sub>6</sub> precipitates.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 5-6","pages":"398 - 407"},"PeriodicalIF":0.5,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Formation of Homogeneous and Gradient Structures of Different Types in (α + β)-Titanium Alloys in the Course of Thermal and Thermal-Hydrogen Treatments （α + β）-钛合金在热处理和热氢处理过程中不同类型均匀和梯度结构的形成
IF 0.5 4区 材料科学
Metal Science and Heat Treatment Pub Date : 2025-11-03 DOI: 10.1007/s11041-025-01167-w
S. V. Skvortsova, A. M. Mamonov, O. N. Gvozdeva, A. S. Stepushin, A. V. Shalin, E. O. Ogarkova
{"title":"Formation of Homogeneous and Gradient Structures of Different Types in (α + β)-Titanium Alloys in the Course of Thermal and Thermal-Hydrogen Treatments","authors":"S. V. Skvortsova,&nbsp;A. M. Mamonov,&nbsp;O. N. Gvozdeva,&nbsp;A. S. Stepushin,&nbsp;A. V. Shalin,&nbsp;E. O. Ogarkova","doi":"10.1007/s11041-025-01167-w","DOIUrl":"10.1007/s11041-025-01167-w","url":null,"abstract":"<p>We study the regularities of formation of homogeneous lamellar structures in (α + β)-titanium alloys subjected to thermal treatment and gradient structures with fine lamellar α-phase in the surface layers in the course of thermal hydrogen treatment. We determine the structure of alloys in different states, their phase compositions, Rockwell hardness, and impact toughness. It is experimentally demonstrated that the decrease in the cooling rate from the β-region of the samples of VT23 alloy from 5 down to 0.01 K/sec leads to an increase in the mean thickness of the α-phase lamellae from 1.2 μm (initial state) up to 8 μm in the course of cooling with isothermal holdings in the (α + β)-region. In this case, the impact strength increases from 0.15 up to 0.68 MJ/m<sup>2</sup>.We propose a scheme and modes of thermal hydrogen treatment of the rods of VT6 alloy guaranteeing the formation of a gradient structure with finely lamellar α-phase in the surface layer and a bimodal (α + β)-structure in the core. The hardness of the alloy in this structural state gradually changes from 39 <i>HRC</i> (rod surface) down to 32 <i>HRC</i> (core).</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 5-6","pages":"338 - 344"},"PeriodicalIF":0.5,"publicationDate":"2025-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Rotary Forging on the Microstructure and Mechanical Properties of Al – Cu – Mn Alloys Used in Electrical Engineering 旋转锻造对电气用铝铜锰合金组织和力学性能的影响
IF 0.5 4区 材料科学
Metal Science and Heat Treatment Pub Date : 2025-11-03 DOI: 10.1007/s11041-025-01172-z
S. O. Rogachev, K. A. Tsydenov, V. A. Andreev, S. A. Bondareva
{"title":"Effect of Rotary Forging on the Microstructure and Mechanical Properties of Al – Cu – Mn Alloys Used in Electrical Engineering","authors":"S. O. Rogachev,&nbsp;K. A. Tsydenov,&nbsp;V. A. Andreev,&nbsp;S. A. Bondareva","doi":"10.1007/s11041-025-01172-z","DOIUrl":"10.1007/s11041-025-01172-z","url":null,"abstract":"<p>The article proposes a thermomechanical processing method based on rotary forging which ensures the production of long billets from Al – 2 wt.% Cu – 2 wt.% Mn alloys. Rotary forging of the alloy was performed at 200°C (after holding for 10 – 15 min) and subsequent annealing in the temperature range of 250 – 450°C. The study investigated the structure of the aluminum alloy in different states and measured its Vickers microhardness. Additionally, static tensile tests were conducted on the specimens. Long billets were obtained by rotary forging. They had high strength combined with significant plasticity (yield strength was above 300 MPa, elongation equaled 13%) as well as high thermal stability (up to 350°C) without additional introduction of zirconium into the alloy.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 5-6","pages":"376 - 382"},"PeriodicalIF":0.5,"publicationDate":"2025-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of the Duration of High-Temperature Exposure to Hydrogen on the Chemical Compositions of the Surface and Inner Layers of VV751P Nickel Alloy 高温氢暴露时间对VV751P镍合金表层和内层化学成分的影响
IF 0.5 4区 材料科学
Metal Science and Heat Treatment Pub Date : 2025-11-01 DOI: 10.1007/s11041-025-01166-x
V. Z. Poylov, A. L. Kazantsev, D. D. Fomina, P. V. Skovorodnikov
{"title":"Effect of the Duration of High-Temperature Exposure to Hydrogen on the Chemical Compositions of the Surface and Inner Layers of VV751P Nickel Alloy","authors":"V. Z. Poylov,&nbsp;A. L. Kazantsev,&nbsp;D. D. Fomina,&nbsp;P. V. Skovorodnikov","doi":"10.1007/s11041-025-01166-x","DOIUrl":"10.1007/s11041-025-01166-x","url":null,"abstract":"<p>We study the effect of duration of the exposure to hydrogen on the chemical compositions of the surface and inner layers of BB751P heat-resistant nickel alloy applied for manufacturing of the disks of aircraft engines. The samples were treated in a hydrogen atmosphere at 1473 K for 0, 15, 30 and 60 min. It is shown that the elemental composition and structure of the surface layer of the alloy change as the duration of holding in a hydrogen atmosphere increases. Moreover, the contents of oxygen, aluminum, titanium, chromium and niobium become many times higher, and we observe the formation of spherical nickel microparticles 0.5 – 3.0 μm in size. The composition of the internal layers of VV751P alloy varies insignificantly, which reveals the inhibition of the process of oxidation in the outer layer and the absence of penetration of the oxidation front into the alloy.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 5-6","pages":"333 - 337"},"PeriodicalIF":0.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microwave Metal-Ceramic in-situ Powder Casting Process: Mechanism and Process 微波金属陶瓷原位粉末铸造工艺：机理与工艺
IF 0.5 4区 材料科学
Metal Science and Heat Treatment Pub Date : 2025-11-01 DOI: 10.1007/s11041-025-01176-9
S. Singh
{"title":"Microwave Metal-Ceramic in-situ Powder Casting Process: Mechanism and Process","authors":"S. Singh","doi":"10.1007/s11041-025-01176-9","DOIUrl":"10.1007/s11041-025-01176-9","url":null,"abstract":"<p>The metal-ceramic powdered composite castings of nickel-based powder reinforced with 10% SiC and 10% Al<sub>2</sub>O<sub>3</sub> were successfully processed through <i>in-situ</i> melting via microwave hybrid heating route. The premixed powders of metal – <i>x</i>% ceramics were cast in graphite cavity under suscepting environment. The composites were developed within 15 – 20 minutes of 2.45 GHz microwaves exposure using domestic microwave applicator. Microstructure analysis of developed castings revealed uniform equiaxed grain growths of nickel based metallic powder matrix and uniform dispersed ceramic particles. Results revealed lower visible defects in cast samples and porosity was in the range of 1.25 – 1.28%. Microhardness studies revealed higher hardness of 1200 HV. The present work on <i>in-situ</i> powder melting and casting of composites provides an alternate energy efficient route for Metal Matrix composites processing.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 5-6","pages":"408 - 412"},"PeriodicalIF":0.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-Coercivity (Nd, Dy) – (Fe, Co) – Cu – Ga – B Magnets with Enhanced Temperature Stability of Magnetic Properties 高矫顽力(Nd, Dy) - (Fe, Co) - Cu - Ga - B磁体的温度稳定性增强
IF 0.5 4区 材料科学
Metal Science and Heat Treatment Pub Date : 2025-11-01 DOI: 10.1007/s11041-025-01163-0
A. V. Shitov, D. A. Kolodkin, L. A. Stashkova, A. R. Soltus, D. Y. Vasilenko
{"title":"High-Coercivity (Nd, Dy) – (Fe, Co) – Cu – Ga – B Magnets with Enhanced Temperature Stability of Magnetic Properties","authors":"A. V. Shitov,&nbsp;D. A. Kolodkin,&nbsp;L. A. Stashkova,&nbsp;A. R. Soltus,&nbsp;D. Y. Vasilenko","doi":"10.1007/s11041-025-01163-0","DOIUrl":"10.1007/s11041-025-01163-0","url":null,"abstract":"<p>This study investigates sintered magnets produced from alloys of a (Nd<sub>0.75</sub>Dy<sub>0.25</sub>)<sub>32</sub>Fe<sub>66.4–<i>x</i></sub>Co<sub><i>x</i></sub>Cu<sub>0.1</sub>Ga<sub>0.6</sub>B<sub>0.9</sub> system with varying cobalt content. The Curie temperatures of the initial and sintered magnets were determined. A microstructural analysis and x-ray diffraction (XRD) of the magnets were carried out. We optimized the composition of the alloy and the two-stage annealing process. The alloy with an optimal composition of (Nd<sub>0.75</sub>Dy<sub>0.25</sub>)<sub>32</sub>Fe<sub>55.3</sub>Co<sub>11.1</sub>Cu<sub>0.1</sub>Ga<sub>0.6</sub>B<sub>0.9</sub> (wt.%), prepared by a low-oxygen process, exhibited high hysteresis characteristics at room temperature (<i>B</i><sub><i>r</i></sub> = 11.72 kG; <sub>M</sub><i>H</i><sub><i>c</i></sub> = 20.8 kOe; <sub>B</sub><i>H</i><sub><i>c</i></sub> = 11.2 kOe; and (<i>BH</i>)<sub>max</sub> = 32.9 MG ∙ Oe) and a reduced temperature coefficient of magnetic induction, α = |–0.053Ι| %/°C, in the range of 23 – 100°C. The formation of a nonmagnetic Laves phase (Nd, Dy)(Fe, Co, Cu, Ga)<sub>2</sub> along the grain boundaries was identified as the key factor contributing to the increase in coercive force (<i>H</i><sub><i>c</i></sub>) to 20.8 kOe. This enhancement was attributed to improved magnetic insulation between the grains of the main magnetic phase (Nd, Dy)<sub>2</sub>(Fe, Co)<sub>14</sub>B, resulting from the suppressed exchange interaction due to reduced magnetization of the (Nd, Dy)(Fe, Co, Cu, Ga)<sub>2</sub> phase, as the contents of gallium and copper increased.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 5-6","pages":"307 - 316"},"PeriodicalIF":0.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Hydrogenation on the Structure–Phase State of Zr – 2.5Nb Alloy 加氢对Zr - 2.5Nb合金结构相态的影响
IF 0.5 4区 材料科学
Metal Science and Heat Treatment Pub Date : 2025-11-01 DOI: 10.1007/s11041-025-01164-z
V. Yu. Yarkov, V. I. Pastukhov, S. A. Averin, V. A. Tsygvintsev, S. V. Solovieva
{"title":"Influence of Hydrogenation on the Structure–Phase State of Zr – 2.5Nb Alloy","authors":"V. Yu. Yarkov,&nbsp;V. I. Pastukhov,&nbsp;S. A. Averin,&nbsp;V. A. Tsygvintsev,&nbsp;S. V. Solovieva","doi":"10.1007/s11041-025-01164-z","DOIUrl":"10.1007/s11041-025-01164-z","url":null,"abstract":"<p>This article examines the structure–phase state of Zr – 2.5Nb alloy subjected to prolonged low-temperature neutron irradiation in a water coolant using x-ray diffraction analysis and scanning electron microscopy (SEM), including electron backscattered diffraction (EBSD). The results demonstrate that zirconium hydrides with the γ(ZrH) and δ(ZrH<sub>1.66</sub>) phases are formed both along grain boundaries and within the bulk of α(α′)-phase crystallites. These phases manifest as isolated plates, chains, or large clusters, depending on the initial microstructure and phase composition of the alloy. In all cases, specific orientation relationships are observed between the matrix α/α′/β phases and the hydride phases. A fracture analysis of welded Zr – 2.5Nb joints containing a high concentration of hydride phases revealed a brittle failure accompanied by characteristic cleavage facets.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 5-6","pages":"317 - 325"},"PeriodicalIF":0.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Procedure of Control of the Heat Treatment of Cast Parts of Freight Cars 货车铸件热处理控制程序
IF 0.5 4区 材料科学
Metal Science and Heat Treatment Pub Date : 2025-11-01 DOI: 10.1007/s11041-025-01178-7
A. G. Larchenko
{"title":"Procedure of Control of the Heat Treatment of Cast Parts of Freight Cars","authors":"A. G. Larchenko","doi":"10.1007/s11041-025-01178-7","DOIUrl":"10.1007/s11041-025-01178-7","url":null,"abstract":"<p>We propose a method for monitoring the process of heat treatment of the cast components of freight cars including, in particular, large-sized side frames made of low-alloy steels. The necessity of development of a procedure of this kind is explained by the fact that, in numerous cases, it is impossible to establish the fact of realization of heat treatment after removing of the surface defects of side frames at the manufacturing plants with the help of electric-arc welding. This does not allow us to formalize the admission of frames to operation, which may lead to serious financial losses. Thus, in order to determine the presence and quality of heat treatment of side frames, we propose to use a method intended for monitoring of the welds by measuring the hardnesses of the base metal, weld metal, and the heat-affected zone. The influence of heat treatment on the microstructure and hardness of welded joints is investigated. The results of approval of the proposed method under the conditions of repair facility are presented.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 5-6","pages":"423 - 428"},"PeriodicalIF":0.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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