WELDABILITY OF Ni-BASED SUPERALLOYS

被引：0
|
作者：
Andersson, Joel [1 ,2 ,3 ]
机构：
[1] GKN Aerosp Engine Syst, SE-46181 Trollhattan, Sweden
[2] Univ West, Dept Engn Sci, SE-46186 Trollhattan, Sweden
[3] Chalmers Univ Technol, Dept Mat & Mfg Technol, SE-41296 Gothenburg, Sweden
来源：
8TH INTERNATIONAL SYMPOSIUM ON SUPERALLOY 718 AND DERIVATIVES | 2014年
关键词：
Weldability; Ni-based; Superalloys; Cracking; AFFECTED ZONE CRACKING; ALLVAC; 718PLUS; SOLIDIFICATION; LIQUATION; BEHAVIOR;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper reviews the inherent weldability of precipitation hardening Ni-based superalloys commonly used in structural components of aircraft engines. Weldability often refers to alloys resistant to cracking during welding which for superalloys is difficult to comprehend since specific liquation and cracking mechanism may differ in this class of materials. A new procedure of evaluating the weldability as well as susceptibility towards strain age cracking of these alloys is proposed in which standard metallographic examinations are used to understand the cracking mechanisms in parallel with systematic ductility measurements such as Varestraint or Gleeble testing.
引用
收藏
页码：249 / 262
页数：14
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