过渡层对锆/钢爆炸复合板剪切强度的影响

王小绪; 赵铮; 王金相; 何勇

doi:10.11883/1001-1455(2014)06-0685-06

过渡层对锆/钢爆炸复合板剪切强度的影响

doi: 10.11883/1001-1455(2014)06-0685-06

王小绪¹,
赵铮²,
王金相^3, ,,
何勇¹

1.
南京理工大学机械工程学院，江苏南京 210094
2.
南京理工大学能源与动力工程学院，江苏南京 210094
3.
南京理工大学瞬态物理重点实验室，江苏南京 210094

详细信息

作者简介:
王小绪(1972—), 男, 博士研究生, 副研究员

中图分类号: O389
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出版历程
- 收稿日期: 2013-04-08
- 刊出日期: 2014-11-25

Influences of transition layer on shear strength of Zr/steel explosive clad plate

1.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2.
School of Energy and Power Engineering, Nanjing University of Scienceand Technology, Nanjing 210094, Jiangsu, China
3.
Science and Technology on Transient Physics Laboratory, Nanjing University of Scienceand Technology, Nanjing 210094, Jiangsu, China

More Information

Corresponding author: Wang Jin-xiang, wjxdlut@sina.com

摘要

摘要: 为了考察钛作为过渡层提高锆/钢复合板结合强度的有效性，同时给出合理的爆炸焊接碰撞参数，对双层锆/钢和三层锆/钛/钢进行了小倾角法爆炸焊接实验研究。借助金相显微技术测量了复合板结合界面的波形参数，采用光滑粒子动力学法模拟得到了不同位置的碰撞速度和碰撞角，并按照国家标准(GB/T 6396-2008)测量了复合板结合界面的爆炸态及退火态的剪切强度。结果表明：钛作为过渡层能够显著提高锆/钢界面的剪切强度；退火消除加工应力后，锆/钢及钛/钢结合面的剪切强度会有所降低；当锆/钛界面的碰撞速度为734~805 m/s，碰撞角为19.8°~20.8°，钛/钢界面的碰撞速度为803~904m/s，碰撞角为19.5°~20.5°时，锆/钛/钢三层复合板的锆/钛和钛/钢界面的剪切强度都能高于140 MPa。
- 爆炸力学 /
- 剪切强度 /
- 爆炸焊接 /
- 锆/钢复合板 /
- 过渡层
Abstract: In order to investigate the influence of the transition layer on the shear strength of the Zr/steel explosive clad plate and obtain the rational impact parameters of explosive welding, the difference of the Zr/steel and Zr/Ti/steel clad plates was compared by the explosive welding experiments at small angles.The interfacial wave parameters were measured by a metallographic microscope, and the impact velocities and impact angles were calculated by the smoothed particle hydrodynamics meshfree method.The shear strengths of the explosive and the annealed samples from the clad plates were measured according to the national standard (GBT 6396-2008).The results indicate that titanium as the transition layer can increase the shear strength of the Zr/steel interface and annealing treatment can decrease the shear strength.When the impact velocity is 734-805 m/s and the impact angle is 19.8°-20.8°, the shear strength of the Zr/Ti interface can be higher than 140 MPa.When the impact velocity is 803-904 m/s and the impact angle is 19.5°-20.5°, the shear strength of the Ti/steel interface can also be higher than 140 MPa.
- mechanics of explosion /
- shear strength /
- explosve welding /
- Zr/steel cald plate /
- transition layer

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图 1 三层小倾角法爆炸焊接装置示意图

Figure 1. The equipment of three-layer explosive welding at small angle

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图 2 锆/钢复合板的界面波

Figure 2. The interfacial waves of the Zr/steel clad plate

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图 3 锆/钢复合板界面的形貌

Figure 3. The interfacial morphology of the Zr/steel clad plate

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图 4 锆/钛/钢复合板界面的形貌

Figure 4. The interfacial morphology of the Zr/Ti/steel clad plate

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图 5 复合板剪切强度测试装置示意图

Figure 5. The testing device for shear strength

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图 6 锆/钛/钢爆炸焊接的SPH模型

Figure 6. The SPH model of explosive welding for Zr/Ti/steel clad plate

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表 1 复合板的波形参数

Table 1. The interfacial wave parameters of the clad plates

试样编号	s/mm	h/mm	s/h	s/mm	h/mm	s/h	s/mm	h/mm	s/h
试样编号	锆/钢界面			锆/钛界面			钛/钢界面
1	0.189	0.011	17.18	0	0	0	0.500	0.111	4.50
2	0.511	0.133	3.84	0.120	0.110	1.09	0.889	0.200	4.45
3	1.056	0.278	3.80	0.222	0.167	1.33	0.833	0.189	4.41
4	1.444	0.411	3.51	0.389	0.278	1.40	1.111	0.222	5.00
5	1.944	0.711	2.73	0.445	0.333	1.34	1.278	0.278	4.60
6	2.111	0.833	2.53	0.556	0.389	1.43	1.444	0.333	4.34
7	2.333	0.722	2.23	0.611	0.444	1.38	1.611	0.333	4.84
8	2.444	0.822	2.97	0.667	0.500	1.33	1.667	0.333	5.00
9	2.833	0.777	3.64	0.844	0.510	1.65	1.889	0.333	5.67

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表 2 复合板结合界面的剪切强度

Table 2. The interfacial shear strength of clad plate

试样编号	σ_s/MPa
	锆/钛界面		钛/钢界面		锆/钢界面
	爆炸态	退火态	爆炸态	退火态	爆炸态	退火态
1	57	41	63	185	47	160
2	77	68	124	180	110	160
3	103	94	150	193	138	166
4	115	101	163	163	147	132
5	142	121	155	191	144	157
6	155	131	164	217	148	179
7	124	110	158	183	143	165
8	84	78	166	156	146	131
9	51	46	133	131	115	112

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表 3 锆/钛/钢界面的碰撞参数

Table 3. Impact parameters for Zr/Ti/steel interface

试样	v/(m·s^-1)	β/(°)	v/(m·s^-1)	β/(°)
试样	锆/钛界面		钛/钢界面
1	325	5.2	485	3.3
2	501	10.1	554	8.5
3	602	13.5	684	14.2
4	680	17.0	755	16.8
5	734	19.8	803	19.5
6	774	20.4	871	20.2
7	805	20.8	904	20.5
8	823	21.2	923	20.9
9	850	21.5	939	21.3

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