{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T13:53:35Z","timestamp":1788875615920,"version":"build-2803163510"},"reference-count":39,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2024,4,17]],"date-time":"2024-04-17T00:00:00Z","timestamp":1713312000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100009047","name":"Scientific Research Foundation of Shantou University","doi-asserted-by":"publisher","award":["NTF22001"],"award-info":[{"award-number":["NTF22001"]}],"id":[{"id":"10.13039\/100009047","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>In order to enhance the quality of diamond composite materials, this work employs a Cu-Co-Fe and Ni-Cr-Cu pre-alloyed powder mixture as a transition layer, and utilizes laser-welding technology for saw blade fabrication. By adjusting the laser-welding process parameters, including welding speed and welding power, well-formed welded joints were achieved, and the microstructure and mechanical properties of the welded joints were investigated. The results demonstrate that the best welding performance was achieved at a laser power of 1600 W and a welding speed of 1400 mm\/min, with a remarkable tooth engagement strength of up to 819 MPa. The fusion zone can be divided into rich Cu phase and rich Fe phase regions, characterized by coarse grains without apparent preferred orientation. The microstructure of the heat-affected zone primarily consists of high-hardness brittle quenched needle-like martensite, exhibiting a sharp increase in microhardness up to 550 HV. Fracture occurred at the boundary between the fusion zone and the heat-affected zone of the base material, where stress concentration was observed. By adjusting the welding parameters and transition layer materials, the mechanical properties of the joints were improved, thereby achieving a reliable connection between diamond composite materials and the metal substrate.<\/jats:p>","DOI":"10.3390\/ma17081840","type":"journal-article","created":{"date-parts":[[2024,4,17]],"date-time":"2024-04-17T07:54:36Z","timestamp":1713340476000},"page":"1840","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Microstructural Characteristics and Properties of Laser-Welded Diamond Saw Blade with 30CrMo Steel"],"prefix":"10.3390","volume":"17","author":[{"given":"Qiang","family":"Xu","sequence":"first","affiliation":[{"name":"Central Iron & Research Institute, Beijing 100081, China"},{"name":"Beijing Gang Yan Diamond Products Company, Beijing 102200, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-8485-5545","authenticated-orcid":false,"given":"Chen","family":"Shu","sequence":"additional","affiliation":[{"name":"Central Iron & Research Institute, Beijing 100081, China"},{"name":"Beijing Gang Yan Diamond Products Company, Beijing 102200, China"},{"name":"School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yibo","family":"Liu","sequence":"additional","affiliation":[{"name":"Central Iron & Research Institute, Beijing 100081, China"},{"name":"Beijing Gang Yan Diamond Products Company, Beijing 102200, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shengzhong","family":"Kou","sequence":"additional","affiliation":[{"name":"School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5506-4464","authenticated-orcid":false,"given":"Rui","family":"Cao","sequence":"additional","affiliation":[{"name":"School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaodie","family":"Cao","sequence":"additional","affiliation":[{"name":"College of Engineering, Shantou University, Shantou 515063, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0099-6680","authenticated-orcid":false,"given":"Jiajun","family":"Wu","sequence":"additional","affiliation":[{"name":"College of Engineering, Shantou University, Shantou 515063, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,4,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"109792","DOI":"10.1016\/j.diamond.2023.109792","article-title":"Dias, Nanoindentation test of a DLC coated high-speed steel substrate using a two-dimensional axisymmetric finite element method","volume":"134","author":"Vieira","year":"2023","journal-title":"Diam. 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