Effect of buttering and hardfacing on ballistic performance of shielded metal arc welded armour steel joints

被引：36

作者：

Balakrishnan, M.

Balasubramanian, V. ^{[1
]}

Reddy, G. Madhusuhan ^{[2
]}

Sivakumar, K. ^{[3
]}

机构：

[1] Annamalai Univ, Dept Mfg Engn, Ctr Mat Joining & Res CEMAJOR, Annamalainagar 608002, Tamil Nadu, India

[2] DMRL, Met Joining Grp, Hyderabad 500058, Andhra Pradesh, India

[3] DMRL, Armour Grp, Hyderabad 500058, Andhra Pradesh, India

来源：

MATERIALS & DESIGN | 2011年 / 32卷 / 02期

关键词：

Ferrous metals and alloys; Sandwich structures; Impact and ballistic; HIGH-STRENGTH; IMPACT PROPERTIES; WELDMENTS; CONSUMABLES; TENSILE;

D O I：

10.1016/j.matdes.2010.08.037

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quenched and tempered (Q&T) steel closely confirming to AISI 4340 is well known for its superior ballistic performance and hence used in the fabrication of armour vehicles. These steels are traditionally welded by austenitic stainless steel (ASS) fillers to prevent hydrogen induced cracking. Due to weld thermal cycles and under matching fillers, the armour steel joints show poor ballistic performance compared to the base metal. Attempts were made to deposit hardfaced interlayer between ASS weld metals. Though this method yielded marginal improvements in ballistic performance, cracks were observed in between base metal and hardfaced layers. In this investigation an attempt has been made to eliminate these cracks by depositing a soft buttering layer using ASS consumable in between base metal and hardfaced layer. This paper reveals the effect of buttering and hardfacing on ballistic performance of shielded metal arc welded armour steel joints. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：469 / 479

页数：11

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