浏览全部资源
扫码关注微信
1.兰州理工大学 材料科学与工程学院 省部共建有色金属先进加工与再利用国家重点实验室,兰州 730050
2.四川大西洋焊接材料股份有限公司,自贡 643000
刘梓申,男,2001年生,河北唐山人,在读博士研究生;主要研究方向为焊缝金属强韧化;E-mail:lzsliuzishen@163.com。
收稿日期:2025-04-14,
纸质出版日期:2025-09-15
移动端阅览
刘梓申,曹睿,焦世舜,等. Ti含量对960 MPa高强钢焊缝金属微观结构及力学性能的影响[J]. 机械强度,2025,47(9):182-189.
LIU Zishen,CAO Rui,JIAO Shishun,et al. Effect of Ti content on microstructure and mechanical properties of 960 MPa high strength steel weld metal[J]. Journal of Mechanical Strength,2025,47(9):182-189.
刘梓申,曹睿,焦世舜,等. Ti含量对960 MPa高强钢焊缝金属微观结构及力学性能的影响[J]. 机械强度,2025,47(9):182-189. DOI: DOI:10.16579/j.issn.1001.9669.2025.09.017.
LIU Zishen,CAO Rui,JIAO Shishun,et al. Effect of Ti content on microstructure and mechanical properties of 960 MPa high strength steel weld metal[J]. Journal of Mechanical Strength,2025,47(9):182-189. DOI: DOI:10.16579/j.issn.1001.9669.2025.09.017.
为提高960 MPa高强钢焊缝金属综合力学性能,揭示了960 MPa高强钢焊缝金属中Ti元素的最佳含量。首先,设计并焊接了4种不同Ti含量(0.01%~0.08%)的焊缝金属,通过扫描电子显微镜、能谱仪、拉伸与冲击试验,系统研究了Ti含量对焊缝微观结构与力学性能的影响。结合断口观察与断口显微形貌,评估了Ti含量对起裂能和扩展能的影响。结果表明,当Ti含量小于0.06%时,焊缝金属显微组织由粒状贝氏体转变为粒状贝氏体+针状铁素体;随着Ti含量提升,针状铁素体含量显著增加。当Ti含量达到0.06%时,抗拉强度为939 MPa,延伸率为23.5%,相较于Ti0.01延伸率提升27%,-40 ℃冲击功为104 J;Ti含量增至0.08%时,粗大板条贝氏体的形成与TiN的析出导致塑韧性急剧下降,延伸率降至18.2%,-40 ℃冲击功仅为25 J。Ti通过形成TiO
2
夹杂物促进针状铁素体形核,改善了焊缝的综合力学性能,但过量的Ti会诱发脆性相析出与粗大的板条贝氏体的形成,显著恶化塑韧性。
In order to improve the comprehensive mechanical properties of 960 MPa high strength steel weld metal
the optimum content of Ti element in 960 MPa high strength steel weld metal was revealed. Firstly
four kinds of weld metals with different Ti contents (0.01%-0.08%) were designed and welded. The effects of Ti content on the microstructure and mechanical properties of welds were systematically studied by scanning electron microscopy
energy dispersive spectroscopy
tensile and impact tests. The effect of Ti content on the initiation energy and propagation energy was evaluated by fracture observation and fracture morphology. The results show that when the Ti content is less than 0.06%
the microstructure of the weld metal changes from granular bainite to granular bainite + acicular ferrite. With the increase of Ti content
the content of acicular ferrite increases significantly. When the Ti content reaches 0.06%
the tensile strength reaches 939 MPa
the elongation reaches 23.5%
the elongation increases by 27% compared with Ti0.01
and the impact absorption energy at -40 ℃ reaches 104 J; when the Ti content increases to 0.08%
the formation of coarse lath bainite and the precipitation of TiN lead to a sharp decrease in plasticity and toughness
the elongation decreases to 18.2%
and the impact energy at -40 ℃ is only 25 J. Ti promotes the nucleation of acicular ferrite and improves the comprehensive mechanical properties by forming TiO
2
inclusions. However
excessive Ti will induce
the precipitation of brittle phase and the formation of coarse lath bainite
which significantly deteriorates the plasticity and toughness.
骆文泽 , 成慧梅 , 刘红艳 , 等 . 高强钢Q960E对接接头残余应力与焊接变形的数值模拟 [J]. 中国机械工程 , 2023 , 34 ( 17 ): 2095 - 2105 .
LUO Wenze , CHENG Huimei , LIU Hongyan , et al . Numerical simulation of residual stress and welding deformation for high strength steel Q960E butt-welded joints [J]. China Mechanical Engineering , 2023 , 34 ( 17 ): 2095 - 2105 . (In Chinese)
ZHU M L , JIN L , XUAN F Z . Fatigue life and mechanistic modeling of interior micro-defect induced cracking in high cycle and very high cycle regimes [J]. Acta Materialia , 2018 , 157 : 259 - 275 .
赵阳 , 刘旭明 , 张楠 , 等 . 准动态模型预估的Q960E大梁钢SR-CGHAZ疲劳裂纹扩展机理 [J]. 焊接学报 , 2024 , 45 ( 9 ): 84 - 93 .
ZHAO Yang , LIU Xuming , ZHANG Nan , et al . Fatigue crack extension mechanism of SR-CGHAZ in Q960E girder steel based on quasi-dynamic model prediction [J]. Transactions of the China Welding Institution , 2024 , 45 ( 9 ): 84 - 93 . (In Chinese)
SUN L , ZHANG X C , WANG R Z , et al . Evaluation of fatigue and creep-fatigue damage levels on the basis of engineering damage mechanics approach [J]. International Journal of Fatigue , 2023 , 166 : 107277 .
张显程 , 王润梓 , 涂善东 , 等 . 工程损伤理论:内涵、挑战与展望 [J]. 机械工程学报 , 2023 , 59 ( 16 ): 2 - 17 .
ZHANG Xiancheng , WANG Runzi , TU Shantung , et al . Engineering damage theory:connotation,challenge and prospect [J]. Journal of Mechanical Engineering , 2023 , 59 ( 16 ): 2 - 17 . (In Chinese)
GU H H , WANG R Z , TANG M J , et al . Creep-fatigue reliability assessment for high-temperature components fusing online monitoring data and physics-of-failure by engineering damage mechanics approach [J]. International Journal of Fatigue , 2023 , 169 : 107481 .
GU H H , WANG R Z , ZHANG K , et al . System-level creep-fatigue reliability evaluation by engineering damage mechanics incorporating cumulative damage-damage threshold interference [J]. International Journal of Fatigue , 2023 , 176 : 107768 .
LI K S , WANG R Z , ZHANG X C , et al . Process-performance-prediction integration for fatigue life improvement technologies:an implementation in cold expansion of hole structures [J]. International Journal of Fatigue , 2023 , 170 : 107507 .
LI K S , WANG R Z , YUAN G J , et al . A crystal plasticity-based approach for creep-fatigue life prediction and damage evaluation in a nickel-based superalloy [J]. International Journal of Fatigue , 2021 , 143 : 106031 .
YUAN G J , ZHANG X C , CHEN B , et al . Low-cycle fatigue life prediction of a polycrystalline nickel-base superalloy using crystal plasticity modelling approach [J]. Journal of Materials Science & Technology , 2020 , 38 : 28 - 38 .
李扬 , 刘汉武 , 杜云慧 , 等 . 汽车用先进高强钢的应用现状和发展方向 [J]. 材料导报 , 2011 , 25 ( 13 ): 101 - 104 .
LI Yang , LIU Hanwu , DU Yunhui , et al . Applications and developments of AHSS in automobile industry [J]. Materials Review , 2011 , 25 ( 13 ): 101 - 104 . (In Chinese)
袁耀 , 王金凤 , 蔡笑宇 , 等 . Q960E超高强钢焊接接头组织和性能研究 [J]. 精密成形工程 , 2023 , 15 ( 5 ): 97 - 104 .
YUAN Yao , WANG Jinfeng , CAI Xiaoyu , et al . Microstructure and properties of welded joints of Q960E ultra-high strength steel [J]. Journal of Netshape Forming Engineering , 2023 , 15 ( 5 ): 97 - 104 . (In Chinese)
吴兴欢 . 先进高强钢的焊接性研究现状与趋势 [J]. 焊接技术 , 2014 , 43 ( 3 ): 1 - 7 .
WU Xinghuan . Research status and trends of weldability of advan-ced high strength steel [J]. Welding Technology , 2014 , 43 ( 3 ): 1 - 7 . (In Chinese)
陶庭芳 , 王铮 , 虎雅雯 , 等 . Q960高强钢辅热搅拌摩擦焊接头组织演变与韧性 [J]. 材料工程 , 2025 , 53 ( 8 ): 110 - 117 .
TAO Tingfang , WANG Zheng , HU Yawen , et al . Study on micro-structure evolution and toughness of auxiliary heating friction stir welded joints for Q960 high-strength steel [J]. Journal of Materials Engineering , 2025 , 53 ( 8 ): 110 - 117 . (In Chinese)
陈茂爱 , 武传松 , 王建国 , 等 . 含Ti微合金钢中的第二相粒子对焊接粗晶热影响区组织及韧性的影响 [J]. 焊接学报 , 2002 , 23 ( 3 ): 37 - 40 .
CHEN Mao’ai , WU Chuansong , WANG Jianguo , et al . Effect of second phase particle on microstructure and toughness of CGHAZ in HSLA [J]. Transactions of the China Welding Institution , 2002 , 23 ( 3 ): 37 - 40 . (In Chinese)
KANG Y , JANG J , PARK J H , et al . Influence of Ti on non-metallic inclusion formation and acicular ferrite nucleation in high-strength low-alloy steel weld metals [J]. Metals and Materials International , 2014 , 20 ( 1 ): 119 - 127 .
阿荣 , 乔建设 , 李建萍 , 等 . Ti对低合金高强钢大热输入焊缝夹杂物的影响 [J]. 机械工程学报 , 2014 , 50 ( 8 ): 34 - 39 .
A Rong , QIAO Jianshe , LI Jianping , et al . Effects of titanium on inclusion in high heat input welds of high strength low alloy steel [J]. Journal of Mechanical Engineering , 2014 , 50 ( 8 ): 34 - 39 . (In Chinese)
SEO J S , KIM H J , LEE C . Effect of Ti addition on weld micro-structure and inclusion characteristics of bainitic GMA welds [J]. ISIJ International , 2013 , 53 ( 5 ): 880 - 886 .
石明浩 , 段争涛 , 张朋彦 , 等 . 夹杂物对Ti,Zr微合金钢中针状铁素体形成的影响 [J]. 东北大学学报(自然科学版) , 2012 , 33 ( 10 ): 1424 - 1427 .
SHI Minghao , DUAN Zhengtao , ZHANG Pengyan , et al . Effect of inclusions on formation of acicular ferrite in Ti and Zr micro-alloying steel [J]. Journal of Northeastern University (Natural Science) , 2012 , 33 ( 10 ): 1424 - 1427 . (In Chinese)
ILMAN M N , COCHRANE R C , EVANS G M . Effect of titanium and nitrogen on the transformation characteristics of acicular ferrite in reheated C-Mn steel weld metals [J]. Welding in the World , 2014 , 58 ( 1 ): 1 - 10 .
焦继军 , 曹睿 , 李义民 , 等 . 焊后热处理对Q690高强钢焊缝金属冲击韧性的影响 [J]. 材料导报 , 2025 , 39 ( 4 ): 131 - 138 .
JIAO Jijun , CAO Rui , LI Yimin , et al . Effect of post-welding heat treatment on impact toughness of Q690 high strength steel welded metal [J]. Materials Reports , 2025 , 39 ( 4 ): 131 - 138 . (In Chinese)
李文清 , 马景平 , 曹睿 , 等 . P91钢焊缝金属碳化物聚集程度的差异对焊缝金属冲击韧性的影响 [J]. 材料导报 , 2024 , 38 ( 20 ): 202 - 208 .
LI Wenqing , MA Jingping , CAO Rui , et al . Effect of different degree of carbide aggregation in P91 steel weld metal on the impact toughness of weld metal [J]. Materials Reports , 2024 , 38 ( 20 ): 202 - 208 . (In Chinese)
宋峰雨 , 刘思远 , 张元祥 . Ti、B对780 MPa级焊缝金属组织相变的影响 [J]. 材料热处理学报 , 2020 , 41 ( 11 ): 173 - 178 .
SONG Fengyu , LIU Siyuan , ZHANG Yuanxiang . Effect of Ti and B on microstructure transformation of 780 MPa grade weld metal [J]. Transactions of Materials and Heat Treatment , 2020 , 41 ( 11 ): 173 - 178 . (In Chinese)
董万龙 , 曹睿 , 蒋勇 , 等 . Cr-Mo-V耐热钢焊条电弧焊焊缝金属低温冲击韧性研究 [J]. 材料导报 , 2022 , 36 ( 15 ): 146 - 150 .
DONG Wanlong , CAO Rui , JIANG Yong , et al . Investigation on the low-temperature impact toughness of shielded metal arc welding weld metals in Cr-Mo-V heat-resistant steel [J]. Materials Reports , 2022 , 36 ( 15 ): 146 - 150 . (In Chinese)
杨跃标 , 李宗强 , 邓深 , 等 . 热轧钛微合金化高强钢低温冲击韧性的控制 [J]. 钢铁 , 2021 , 56 ( 3 ): 41 - 50 .
YANG Yuebiao , LI Zongqiang , DENG Shen , et al . Low temperat-ure impact toughness controlling for Ti-microalloyed high strength steel [J]. Iron & Steel , 2021 , 56 ( 3 ): 41 - 50 . (In Chinese)
陈剑虹 , 曹睿 . 焊缝金属解理断裂微观机理 [J]. 金属学报 , 2017 , 53 ( 11 ): 1427 - 1444 .
CHEN Jianhong , CAO Rui . Micromechanism of cleavage fracture of weld metals [J]. Acta Metallurgica Sinica , 2017 , 53 ( 11 ): 1427 - 1444 . (In Chinese)
李文清 , 曹睿 , 杨飞 , 等 . 影响P91耐热钢焊缝金属冲击韧性的因素分析 [J]. 材料导报 , 2024 , 38 ( 3 ): 147 - 151 .
LI Wenqing , CAO Rui , YANG Fei , et al . Analysis of factors affecting the impact toughness of P91 heat-resistant steel weld metal [J]. Materials Reports , 2024 , 38 ( 3 ): 147 - 151 . (In Chinese)
窦贵山 , 曹睿 , 蒋勇 , 等 . 焊接热输入对耐热钢埋弧焊(SAW)焊缝金属冲击韧性的影响 [J]. 材料导报 , 2022 , 36 ( 增刊2 ): 334 - 338 .
DOU Guishan , CAO Rui , JIANG Yong , et al . Effect of welding heat input on impact toughness of submerged arc welding (SAW)weld metal of heat-resistant steel [J]. Materials Reports , 2022 , 36 ( Suppl.2 ): 334 - 338 . (In Chinese)
石俊亮 , 栗身保 , 郑为为 . 贝氏体形态对细晶铁素体/贝氏体双相钢室温力学性能的影响 [J]. 钢铁研究学报 , 2020 , 32 ( 2 ): 166 - 174 .
SHI Junliang , LI Shenbao , ZHENG Weiwei . Effect of bainite characteristics on room temperature mechanical properties of fine ferrite/bainite dual phase steel [J]. Journal of Iron and Steel Research , 2020 , 32 ( 2 ): 166 - 174 . (In Chinese)
0
浏览量
0
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构