Srinivasarao Lathabai

TL;DR: In this paper, the microstructure, mechanical properties and weld hot cracking behavior of a cast Al-Mg-Sc alloy containing 0.17 wt.% Sc were compared with those of a Sc-free alloy of similar chemical composition.

TL;DR: In this article, tension-tension cyclic loading tests have been conducted on a coarse-grained alumina ceramic that exhibits toughness-curve behavior by grain-interlock bridging and fatigue effects are observed in the regions of both short cracks and long cracks.

TL;DR: In this paper, the microstructure and mechanical properties of the resultant weld joint have been compared with those of a multipass conventional GTAW joint in CP titanium prepared from plates of the same thickness with a double-V edge preparation and the addition of a matching filler metal, and it was concluded that the keyhole GTAW, with its significantly higher productivity combined with the simplicity of proven technology and low capital investment requirements, can be successfully applied in the welding of heavy section CP titanium, without sacrificing the metallurgical quality associated with the GTAW process.

TL;DR: In this paper, the influence of tool rotational speed, plunge rate and depth, and dwell time prior to tool retraction on the weld axial plunge force was monitored using high speed data acquisition.

TL;DR: In this article, a unifying treatment of environment-sensitive crack velocity functions for intrinsically brittle solids is presented, based on the concept of thermal activation barriers, but is phenomenological in that it does not attempt to identify the explicit underlying physical and chemical processes responsible for these barriers.