I finished my Doctorate having solved not one but two previous unknowns about why the newer High-Strength Low-Alloy Thermo-Mechanically Controlled-Processed steels, then only from Germany and Japan, have properties so advantageous beyond comprehension compared to "classic" C-Mn steels
- high weldability - most of the time weld with zero precautions (preheat, etc.)
- highly resistant to "sour" (acidic with hydrogen sulphide) crude oils such at a pipeline can carry quite sour oils without problem
and titled my Doctoral thesis "Hydrogen distribution and redistribution in the weld zone of constructional steels" when the correct/reasonable/informative title would have been "Hydrogen distribution and redistribution in the weld zone of
*structural* steels"-or "structural and pipeline steels" because no-one was talking with me.
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"Constructional" is an accepted term if not the most common one. Really the words you use only matter to someone doing a literature search. We took a full semester course on searching for information as well as writing with defined and well-understood terminology, something like legalese.
"If hydrogen eases dislocation production, as is indicated by previous observations of hydrogen and liquid metals at surfaces, the finding of easier faster void growth could reasonably be expected to follow."
A chemist's task would be to find a way to measure it.