Study on the Damage Formation Mechanism of RB-SiC Ceramics Based on Dynamic Indentation

doi:10.3901/JME.2025.13.449

Abstract

Abstract: The dynamic mechanical properties of SiC ceramics under high strain rate conditions, as well as their influence mechanisms on crack initiation-propagation behavior and material removal mechanisms, remain unclear. Therefore, in view of the lack of research on the above mechanism, the quasi-static and dynamic indentation tests of RB-SiC ceramics were carried out based on the modified split Hopkinson pressure bar (SHPB) system. The results show that with the increase of indentation load from 0.98 N to 9.8 N, the quasi-static and dynamic hardness of RB-SiC ceramics show indentation size effect, and the dynamic hardness is higher than the static hardness. The quasi-static fracture toughness of the material increases gradually, and the dynamic fracture toughness decreases gradually and is less than the quasi-static fracture toughness. Compared with the quasi-static indentation, the material crushing in the dynamic indentation area is intensified, and the edge cracks initiate and expand rapidly with the increase of load until they are connected with the diagonal cracks to form a closed annular crack, resulting in the spalling removal and block crushing removal of the material. The dynamic indentation subsurface cracks tend to propagate locally in the indentation area in the form of a large number of microcracks. Therefore, the subsurface cracks are mainly transverse cracks, only a small number of cracks propagate along the longitudinal direction, and the depth of the subsurface damage layer is reduced. Based on the research results, the dynamic indentation crack model of RB-SiC ceramics is established, which provides practical reference for revealing the grinding removal mechanism of SiC ceramics at high strain rate from the physical essence.

Key words: RB-SiC ceramics, dynamic indentation, strain rate effect, crack generation-propagation mechanism, material removal mechanism

CLC Number:

TG156

LIU Lifei, LIANG Fengshuang, WU Mingyang, ZHANG Mingde. Study on the Damage Formation Mechanism of RB-SiC Ceramics Based on Dynamic Indentation[J]. Journal of Mechanical Engineering, 2025, 61(13): 449-460.

References

[1] ZHANG X，HU H，WANG X，et al. Challenges and strategies in high-accuracy manufacturing of the world’s largest SiC aspheric mirror[J]. Light：Science & Applications，2022(11)：310.
[2] 李辰冉，谢志鹏，康国兴，等. 国内外碳化硅陶瓷材料研究与应用进展[J]. 硅酸盐通报，2020，39(5)：1353-1370. LI Chenran，XIE Zhipeng，KANG Guoxing，et al. Research and application progress of SiC ceramics：A review[J]. Bulletin of the Chinese Ceramic Society，2020，39(5)：1353-1370.
[3] GUO S，LU S，ZHANG B，et al. Surface integrity and material removal mechanisms in high-speed grinding of Al/SiCp metal matrix composites[J]. International Journal of Machine Tools and Manufacture，2022：103906.
[4] 董志刚，马槐遥，康仁科，等. SiCf/SiC复合材料超声辅助干式侧磨砂轮磨损研究[J]. 机械工程学报，2022，58(15)：134-143. DONG Zhigang，MA Huaiyao，KANG Renke，et al. Study on wear of grinding wheel in ultrasonic assisted dry side grinding of SiCf/SiC composites[J]. Journal of Machanical Enginnering，2022，58(15)：134-143.
[5] RAO X，ZHANG F，LU Y，et al. Surface and subsurface damage of reaction bonded silicon carbide induced by electrical discharge diamond grinding[J]. International Journal of Machine Tools & Manufacture，2020，154：103564.
[6] ALAO A. Review of ductile machining and ductile-brittle transition characterization mechanisms in precision/ultraprecision turning, milling and grinding of brittle materials[J]. Precision Engineering，2024，88：279-299.
[7] KLECKA M A，SUBHASH G. Rate-dependent indentation response of structural ceramics[J]. Journal of the American Ceramic Society，2010，93(8)：2377-2383.
[8] GHOSH D，SUBHASH G，SUDARSHAN T S，et al. Dynamic indentation response of fine‐grained boron carbide[J]. Journal of the American Ceramic Society，2010，90(6)：1850-1857.
[9] 韩国庆，张先锋，谈梦婷，等. 透明陶瓷材料冲击响应特性及损伤演化规律研究[J]. 力学进展，2023，53(3)：497-560. HAN Guoqing，ZHANG Xianfeng，TAN Mengting, et al. Research on impact response characteristics and damage evolution law of transparent ceramics[J]. Advances in Mechanics，2023，53(3)：497-560
[10] 鲍小伟，吴艳青，黄风雷. 准脆性单晶材料动态压痕试验研究[J]. 固体力学学报，2017，38(6)： 544-550. BAO Xiaowei，WU Yanqing，HUANG Fenglei. Experimental investigation of dynamic indentation on quasi-brittle single crystal materials[J]. Chinese Journal of Solid Mechanics，2017，38(6)：544-550.
[11] LI C，WANG K，PIAO Y，et al. Surface micro-morphology model involved in grinding of GaN crystals driven by strain-rate and abrasive coupling effects [J]. International Journal of Machine Tools & Manufacture，2024，201：104197.
[12] 卢守相，杨秀轩，张建秋，等. 关于硬脆材料去除机理与加工损伤的理性思考[J]. 机械工程学报，2022，58(15)：31-45. LU Shouxiang，YANG Xiuxuan，ZHANG Jianqiu，et al. Rational discussion on material removal mechanisms and machining damage of hard and brittle materials[J]. Journal of Mechanical Engineering，2022，58(15)：31-45.
[13] LE J，LIU J，LIU J，et al. Analysis of single-crystal 3C-SiC subsurface damage mechanisms based on molecular dynamics indentation speed[J]. AIP Advances，2024，15：085022.
[14] ZHU B，ZHAO D，NIU Y，et al. Atomic study on deformation behavior and anisotropy effect of 4C-SiC during nanoindentation[J]. Materials Science in Semiconductor Processing，2023，163：107580.
[15] WANG Y，DING H，WANG N，et al. Effect of dislocation defects on the nano-scratching process of 4H-SiC[J]. Wear，2024，546-547：205343.
[16] WU N，JIANG P，ZHANG H，et al. Influence of nano-indentation depth on the elastic-plastic transformation of 6H-SiC simulated[J]. AIP Advances，2023，13：025118.
[17] YUAN Z，XIANG D，PENG P，et al. Analysis of microscopic deformation mechanism of SiCp/Al composites induced by ultrasonic vibration nanoindentation[J]. Journal of Cleaner Production，2024，434：140073.
[18] WU C J，LI B Z，LIU Y，et al. Strain rate-sensitive analysis for grinding damage of brittle materials[J]. The International Journal of Advanced Manufacturing Technology，2017，89：2221-2229.
[19] 戴剑博，苏宏华，傅玉灿，等. 磨削速度对碳化硅陶瓷磨削损伤影响机制研究[J]. 机械工程学报，2022，58(21)：316-330. DAI Jianbo，SU Honghua，FU Yucan，et al. Effect of grinding speed on mechining damage of silicon carbide ceramics[J]. Journal of Machanical Enginnering，2022，58(21)：316-330.
[20] 郭塞，江庆红，刘昊，等. 难加工材料超高速磨削亚表面损伤研究[J]. 航空制造技术，2023，66(14)：59-71. GUO Sai，JIANG Qinghong，LIU Hao，et al. Subsurface damage in high-speed grinding of difficult-to-machine materials[J]. Aeronautical Manufacturing Technology，2023，66(14)：59-71.
[21] ZHANG B，YIN J. The 'skin effect' of subsurface damage distribution in materials subjected to high-speed machining[J]. International Journal of Extreme Manufacturing，2019，1(1)：126-137.
[22] YANG X，ZHANG B. Material embrittlement in high strain-rate loading[J]. International Journal of Extreme Manufacturing，2019，1(2)：19.
[23] KOEPPEL B J，SUBHASH G. Characteristics of residual plastic zone under static and dynamic vickers indentations[J]. Wear，1999，224(1)：56-67.
[24] CAMPOS-QUIROS A，KUNDU A，WATANABE M. Effect of Ca doping on the microstructure and mechanical properties of magnesium aluminate spinel[J]. Microscopy and Microanalysis，2022，28(S1)：2600-2602.
[25] LAUGIER M T. New formula for indentation toughness in ceramics [J]. Journal of Materials Science Letters，1987，6(3)：355-356.
[26] MACHADO J，MARQUES E，CAMPILHO R，et al. Mode II fracture toughness of CFRP as a function of temperature and strain rate[J]. Composites Part B: Engineering，2017，114：311-318.
[27] MACHADO J，MARQUES E，CAMPILHO R，et al. Mode I fracture toughness of CFRP as a function of temperature and strain rate[J]. Journal of Composite Materials，2017，51：3315-3326.
[28] ANTON R，SUBHASH G. Dynamic vickers indentation of brittle materials[J]. Wear，2000，239(1)：27-35.
[29] 戴剑博，苏宏华，王忠宾，等. 多晶碳化硅陶瓷磨削裂纹损伤形成机理研究[J]. 机械工程学报，2022，58(13)：307-320. DAI Jianbo，SU Honghua，WANG Zhongbin，et al. Research on the crack damage formation mechanisms of polycrystalline silicon carbide ceramics in grinding process[J]. Journal of Machanical Enginnering，2022，58(13)：307-320.
[30] 刘民慧. 碳化硅陶瓷精密磨削亚表面损伤及预测研究[D]. 哈尔滨：哈尔滨工业大学，2014. LIU Minghui. Research on precision grinding subsurface damage and prediction of silicon carbide ceramics[D]. Harbin：Harbin Institute of Technology，2014.
[31] ZARUDI I, ZHANG L C. On the limit of surface integrity of alumina by ductile-mode grinding[J]. Journal of Engineering Materials and Technology，2000，122(1)：129-134.
[32] LAWN B R，SWAIN M V. Microfracture beneath point indentations in brittle solids[J]. Journal of Materials Science，1975，10(1)：113-122.
[33] 张新，候兵，李玉龙. 基于霍普金森压杆系统的动态压痕实验[J]. 爆炸与冲击，2011(3)：256-262. ZHANG Xin，HONG Bing，LI Yulong. Dynamic indentation experiment based on the split-Hopkinson pressure bar system[J]. Explosion and Shock Waves，2011(3)：256-262.
[34] JIANG W，CHENG X，XIONG Z，et al. Static and dynamic mechanical properties of yttrium aluminum garnet (YAG)[J]. Ceramics International，2019，45：12256-12263.
[35] HOLMQUIST T J，JOHNSON G R. A computational constitutive model for glass subjected to large strains, high strain rates and high pressures[J]. Journal of Applied Mechanics-Transactions of the ASME，2011，78(5)：051003.