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Separating and Extracting of Vanadium and Titanium

The current status and prospects of titanium industry in China

TAN Rui, HE Shuangjiang, HU Meilong, YU Wenzhou, LIANG Wei, BAI Chenguang

2025, 46(1): 1-9. doi: 10.7513/j.issn.1004-7638.2025.01.001

Abstract(219) HTML(45) PDF(92)

Abstract:
This paper systematically summarizes the development history and current situation of China’s titanium industry from the aspects of titanium resource distribution, production and processing, application fields, and distribution pattern of related ent...

Application of Vanadium and Titanium

Carbon enriched defect and the associated deformation cracking behaviors in a titanium alloy

ZHENG Youping, WANG Liya, QIN Haixu, GENG Naitao, LI Lu, CHEN Wei

2025, 46(1): 45-52. doi: 10.7513/j.issn.1004-7638.2025.01.007

Abstract(134) PDF(15)

Abstract:
Since the contacting ultrasonic detection results indicated some defects existed in a bar of Ti-6Al-4V alloy, researching work had been carried out using optical microscope, scanning electron microscope metallographic analysis, microhardness, energy ...

Resources Environment and Energy Saving

A review on the activation of high-titanium blast furnace slag powder and its application in concrete

ZHOU Xiaojun, LU Li, ZHOU Xianliang, YANG Yuanyi, AO Jinqing

2025, 46(1): 86-93, 106. doi: 10.7513/j.issn.1004-7638.2025.01.013

Abstract(97) HTML(46) PDF(17)

Abstract:
High-titanium blast furnace slag, as an ordinary industrial solid waste, is characterized by low activity and low utilization rate due to its high TiO₂ content and predominantly crystalline and stable mineral components, resulting in its accumulation...

Ferrous Metallurgy and Materials

Study on the effect of multi area controllable electromagnetic braking on behavior of non-uniform molten steel flow and steel-slag interface in the mold

XU Lin, PEI Qunwu, LI Nan, LIU Cong, XU Heyuan

2025, 46(1): 112-123. doi: 10.7513/j.issn.1004-7638.2025.01.017

Abstract(87) HTML(26) PDF(15)

Abstract:
In the process of continuous casting, the distortion of molten steel flow in mold caused by nozzle clogging is a key factor affecting the quality and production efficiency of castings. To solve this problem, a multi area controllable electromagnetic ...

Report on China titanium industry in 2020

Jia Hong, Lu Fusheng, Hao Bin

2021, 42(3): 1-9. doi: 10.7513/j.issn.1004-7638.2021.03.001

[Abstract](2105) [FullText HTML](1513) [PDF 867KB](435)

摘要：
从2020年我国钛工业钛精矿、海绵钛、钛锭、钛材等品种的产能、产量、应用和进出口等数据分析了我国钛工业的整体情况，并对目前行业存在的问题提出了建议。

Status of titanium dioxide industry in China and the development prospect

Bi Sheng

2021, 42(2): 1-4. doi: 10.7513/j.issn.1004-7638.2021.02.001

[Abstract](997) [FullText HTML](231) [PDF 546KB](151)

摘要：
总结回顾了中国钛白粉工业2019、2020年的各项行业数据和表现，分析了当前面临的形势及发展趋势，认为高质量发展成为钛白粉行业未来发展的主旋律，钛白粉产能集中度虽有提高，但洗牌效应短期内难以呈现，这也是行业发展的一个难题，另外行业监管、氯化法钛原料问题、环保及清洁生产问题仍不容忽视。

Review of continue casting slab electromagnetic stirring technology

Yang Bao, Zhang Hui, Wang Minglin, Wang Xuebin, Liu Bin, Liu Shuai

2021, 42(5): 149-157. doi: 10.7513/j.issn.1004-7638.2021.05.023

[Abstract](1031) [FullText HTML](113) [PDF 966KB](93)

摘要：
简述了连铸板坯电磁搅拌技术的发展过程和现存问题，重点阐述了连铸板坯生产过程中结晶器内和二冷区电磁搅拌的工作原理和技术特点，对电磁搅拌器的安装位置进行了归纳，同时总结了板坯结晶器电磁搅拌和二冷区电磁搅拌的研究现状，探究了影响板坯电磁搅拌效果的因素及其主次关系，归纳了用于二冷区电磁搅拌支撑辊的作用及需继续探究的方向，分析了板坯电磁搅拌技术对铸坯内元素分布和等轴晶区间隙率的影响，为以后的板坯电磁搅拌研究者提供参考。

Current research status of advanced forming technology for high-performance titanium alloys

Li Junzhao, Sun Qingjie, Yu Hang

2021, 42(6): 17-27. doi: 10.7513/j.issn.1004-7638.2021.06.002

[Abstract](1945) [FullText HTML](297) [PDF 1729KB](249)

摘要：
主要介绍先进热成形技术、脉冲电流辅助成形技术和电磁辅助成形技术的特点，及其在钛合金薄壁板材成形中应用的研究进展。热成形是钛合金塑性加工应用最为普遍的成形工艺，利用高温下钛合金塑性变形软化的特征，能够实现复杂钛合金零件的成形。脉冲电流和电磁辅助成形技术目前尚未开展大规模的产业应用，其在高强度难成形材料的成形加工方面具有潜在应用前景。

Global vanadium industry development report 2020

Wu You, Chen Donghui, Liu Wuhan, Sun Zhaohui, Zhang Bangxu

2021, 42(5): 1-9. doi: 10.7513/j.issn.1004-7638.2021.05.001

[Abstract](2550) [FullText HTML](544) [PDF 1046KB](372)

摘要：

从2020年全球钒资源概况，五氧化二钒、偏钒酸铵、钒铁和钒氮合金等品种的产能、产量、需求、进出口贸易和市场价格等方面阐述和分析了钒工业的整体情况，并介绍了2020年全球钒电池领域发生的主要大事件。依据目前国内外钒行业运行态势对后市进行了展望，认为全球钒扩能态势短期内不会大改，钒产品供过于求的状态将促使价格呈现盘整回归态势。“双碳”背景下的中国市场依旧是全球钒需求的主场，钒氮合金亦将成为钒产品近中期的发展趋势，钒企间的协同创新将促进钒产业逐步呈现良性“竞合”局面。

Research and advances in processing, working, microstructure, properties and industrial application of β-solidifying TiAl alloy

Chen Yuyong, Wu Jingxi

2021, 42(6): 1-16. doi: 10.7513/j.issn.1004-7638.2021.06.001

[Abstract](1217) [FullText HTML](152) [PDF 1832KB](122)

摘要：
β相凝固TiAl合金作为第三代TiAl基金属间化合物，凭借其突出的热变形优势，在航空航天及汽车制造等高端领域具有广阔的应用空间。然而，高温β相的引入在提高合金热变形能力的同时也使得组织演变和性能优化更为复杂。同时，受合金体系及本征脆性的影响，工业化进程相对迟缓。通过综述典型β相凝固TiAl合金的制备及加工工艺、组织与性能研究进展及工业化现状，系统分析了合金制备及加工工艺和成本优势，阐明了合金体系热变形、热处理及合金化对组织演变和性能优化的作用机制，指出合金工业化发展的限制环节及未来发展趋势。

Report on China titanium industry in 2022

An Zhongsheng, Chen Yan, Zhao Wei

2023, 44(3): 1-8. doi: 10.7513/j.issn.1004-7638.2023.03.001

[Abstract](3255) [FullText HTML](473) [PDF 1967KB](924)

摘要：
从2022年我国钛工业钛精矿、海绵钛、钛锭、钛材等品种的产能、产量、应用和进出口等数据分析了我国钛工业的整体情况，并针对目前行业存在的问题提出了建议。

Study on microalloying and heat treatment process of spring steel 55SiCrV

Meng Jian

2021, 42(3): 187-192. doi: 10.7513/j.issn.1004-7638.2021.03.028

[Abstract](969) [FullText HTML](155) [PDF 850KB](108)

摘要：
在弹簧钢55SiCr成分基础上进行钒微合金化处理，获得了55SiCrV，通过淬火+回火正交试验、显微组织观察、力学性能测试和X射线衍射等手段，研究并分析了淬火+回火工艺对弹簧钢55SiCrV微观组织和力学性能的影响，结果表明：0.20%V的添加可使55SiCrV组织中存在大量弥散均匀分布的10～35 nm含钒析出相，强化效果最佳。淬火+回火处理可以改变55SiCrV的显微组织比例，其中的残余奥氏体可以降低强度和增加塑性，55SiCrV获得最佳力学性能匹配（R_m=1 815 MPa、Z=28%）的热处理工艺为900 ℃淬火+430 ℃回火，对应其残余奥氏体含量为2.3%。

Effect of heat treatment process on microstructure and hardness of Cr12MoV steel

Du Simin, Li Xiong, Lin Faju

2021, 42(3): 148-154. doi: 10.7513/j.issn.1004-7638.2021.03.023

[Abstract](1566) [FullText HTML](305) [PDF 988KB](80)

摘要：
采用金相显微镜、XRD射线衍射仪及维氏硬度计等，研究了普通热处理和深冷处理工艺对Cr12MoV钢显微组织及硬度的影响。结果表明：Cr12MoV钢经普通热处理和深冷处理淬火后的组织均为隐针马氏体+残余奥氏体+碳化物，200 ℃低温回火后组织转变为回火马氏体+碳化物+残余奥氏体。深冷处理可大幅减少钢中残余奥氏体，提升钢的硬度；热处理采用1020 ℃加热保温60 min淬火+（−196 ℃）深冷2 h+200 ℃回火保温120 min，硬度（HV30）值最高，可达780。

Inclusion analysis in magnesium free-cutting steel

Zhu Qiangbin, Li Jie, Deng Xiangyang, Tian Qianren, Zeng Zhiqi, Fu Jianxun

2021, 42(2): 179-187, 192. doi: 10.7513/j.issn.1004-7638.2021.02.029

[Abstract](673) [FullText HTML](121) [PDF 2017KB](83)

摘要：
为了探究Mg处理对易切削钢中夹杂物的影响，以1144高硫易切削钢为试验钢种，采用金相和能谱仪等手段研究了Mg处理对1144易切削钢中夹杂物的形态、尺寸分布和夹杂物成分的影响。结果表明：在易切削钢铸坯中，Mg处理使得易切削钢铸坯硫化物夹杂由Ⅱ类向Ⅲ类、Ⅰ类转变，分布更为均匀，同时使得复合硫化锰夹杂物比例提升。在轧材中，使得钢中夹杂物球化，并且钢中硫化锰夹杂物的尺寸和分布也得到了较好的改善，同时，Mg处理能够有效提高易切削钢的切削加工性能。

Report on China titanium industry in 2022

An Zhongsheng, Chen Yan, Zhao Wei

2023, 44(3): 1-8. doi: 10.7513/j.issn.1004-7638.2023.03.001

[Abstract](3255) [FullText HTML](473) [PDF 1967KB](473)

Abstract:
The overall situation of China titanium industry was analyzed on the basis of capacity, output, application, and import and export amount of titanium concentrate, titanium sponge, titanium ingot and titanium materials in 2022. The existed problems and the corresponding suggestions were also proposed...

Development and analysis on 2022 titanium dioxide industry in China

Bi Sheng

2023, 44(1): 1-3. doi: 10.7513/j.issn.1004-7638.2023.01.001

[Abstract](1356) [FullText HTML](896) [PDF 608KB](896)

Abstract:
This paper summarizes and sorts the operational data of titanium dioxide industry in China in 2022, such as production capacity, yield, apparent market demand, production capacity distribution, etc., and focuses on analyzing the recent growth trend of titanium dioxide production capacity and the cor...