PLASMA NITRIDING OF TITANIUM ALLOY

钛合金等离子渗氮

• 批准号: 05650719
• 负责人: KUWAHARA Hideyuki
• 金额: $ 1.41万
• 依托单位: RESEARCH INSTITUTE FOR APPLIED SCIENCES
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650719/
• 关键词: plasma; nitriding; titanium; hydrogen gas; nitrogen gas; TiN; Ti_2N; beta-Ti; チタン合金; β‐Ti

To invetigate the effect of hydrogen on the plasma nitriding of titanium or on forming titanium nitride, plasma nitriding wwas carried out using either 100%N_2 gas or 25%N_2-75%H_2 gas at 1073 K.An optical microscope and scanning electron microscope were used to observe the microstructure of the nitriding layr. While x-ray diffraction and grazing incident x-ray diffraction techniques were used to identify the phase formed by the plasma nitriding, and an x-ray photoelectron spectroscope was used to analyze the phase on the specimen surface. Furthermore, optical emission spectroscopy was also used to identify the species in the plasma during the plasma nitriding or sputtering.The addition of hydrogen to the nitrogen was found to make TiN easeir to form. TiN is formed by two elementary processes : a direct reaction by the exited species without sputtering, and reabsorption from the sputtered Ti combined with the excited species.

为了研究氢对钛离子渗氮或氮化钛形成的影响，在1073 K下，分别用100%N_2和25%N_2-75%H_2气体进行了离子渗氮，并用光学显微镜和扫描电镜观察了渗氮层的显微组织。采用x射线衍射和掠入射x射线衍射技术对等离子体渗氮形成的物相进行了鉴定，并采用x射线光电子能谱仪对试样表面的物相进行了分析。此外，还利用发射光谱分析了等离子体渗氮或溅射过程中等离子体中的物种，发现在氮中加入氢使TiN更容易形成。TiN是由两个基本过程形成的：由激发态物质直接反应而不溅射，以及从溅射的Ti与激发态物质结合的再吸收。

项目成果

S.Nishikawa,T.Hama,H.Kuwahara and J.Takada: "PRECIPITATION OF NITRIDE IN IRON ALLOYS PREPARED BY PLASMA NITRIDING" Proceedings of 1993 Powder Metallurgy World Congress,Kyoto,Japan,1993.Edited by Y.Bando and K.Kosuge. 670-673 (1993)

S.Nishikawa、T.Hama、H.Kuwahara 和 J.Takada：“通过等离子氮化制备的铁合金中氮化物的沉淀”1993 年粉末冶金世界大会论文集，日本京都，1993 年。Y.Bando 和 K. 编辑

M.KUROKAWA,S.TSUTSUMI,AND H.KUWAHARA: "Analyzes of Removed Titanium Mini-Plates Used for Repair of Facial Bone Fractures" J.Jpn.P.R.S.14. 238-243 (1994)

M.KUROKAWA、S.TSUTSUMI 和 H.KUWAHARA：“用于修复面部骨折的移除钛微型板的分析”J.Jpn.P.R.S.14。

Hideyuki Kuwahara, Shiomi Kikuchi: "Effect of mixed hydrogen nitrogen gas on the formation of TiN by plasma nitriding of titanium" Proceedings of Symposium on Plasma Science for Materials. 7. 139-146 (1994)

Hideyuki Kuwahara、Shiomi Kikuchi：“混合氢氮气对钛等离子氮化形成 TiN 的影响”材料等离子科学研讨会论文集。

H.KUWAHARA,N.NAKAMURA,J.KONDO.and S.KIKUCHI: "Nitriding of Ti-V alloys in the region of beta-phase" ABSTRACTS OF Jpn.Inst.of Metals. 363 (1993)

H.KUWAHARA、N.NAKAMURA、J.KONDO. 和 S.KIKUCHI：“Ti-V 合金在 β 相区域的氮化” 日本金属研究所摘要。

H.KUWAHARA AND J.TAKADA: "Diffusion of nitrogen and precipitation of nitrides in iron alloys during plasma nitriding of these iron alloys" Proceeing of 4th Symposium of Reactionability in Solid Phase. Jpn.Chemical Soc.114-117 (1993)

H.KUWAHARA 和 J.TAKADA：“铁合金等离子氮化过程中铁合金中氮的扩散和氮化物的沉淀”第四届固相反应性研讨会论文集。